19
Copyright reserved Please turn over 1 NATIONAL CERTIFICATE (VOCATIONAL) NQF LEVEL 2 PROGRAMME: ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION 2010 2012 This document consists of 11 pages. INTEGRATED SUMMATIVE ASSESSMENT TASK

Isat l2 Elec Infrastruc Construc 2010-12(1)

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Page 1: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 1

NATIONAL CERTIFICATE (VOCATIONAL)

NQF LEVEL 2

PROGRAMME

ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION

2010 ndash 2012

This document consists of 11 pages

INTEGRATED SUMMATIVE ASSESSMENT TASK

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 2

SECTION 1 INTRODUCTION

1 Practical purpose and value of the ISAT to the workplace

The task requires integrated application of competency knowledge and skills including

cutting drilling planning Vero board layout fitting and soldering components to ultimately

construct an a-stable multivibrator The task should take place in a simulated or structured

environment The process requires compliance to safety regulations and appropriate

housekeeping

2 Scope of the ISAT

This ISAT cover topic 1 of Electronic Control and Digital Electronics Subject Outcomes 1

2 and 3 are covered in this task

Demonstrate safety procedures followed when soldering and desoldering on a PC

board and on vero board

Demonstrate the manual dexterity needed to remove and replace a variety of

components on a PC board

Show how to find any semi-conductors operational limits by using technical manuals

Interpret the data found in technical manuals

Show how to look up replacement parts in technical manuals

Describe the uses application and functioning of timing circuits

Describe the uses application and functioning of filter circuits

Demonstrate the ability to design construct and test timing filter and oscillator circuits

observing the appropriate safety precautions and using the appropriate test equipment

Demonstrate the ability to design a circuit with a computer-aided program and test run

the circuit

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 3

Electrical Principles and Practice

Topics Subject outcome

1 1 Relation between electrical entities

2 1 Series parallel resistors

3 2 Applying testing instruments

4 1 Interpret circuit drawings and diagrams

5 1 Identifying different components

Workshop Practice

Topics Subject outcome

1 1amp2 Apply safety procedures

2 1 Know treatment to injuries

3 1amp2 Have knowledge with hand and power tools

4 1 Workshop procedures

5 1 Soldering of circuit

Electronic control and digital electronics

Topics Subject outcome

1 1 2 3 amp 4 Components and circuit drawings

2 2 Binary theory

3 ISAT overview

Sub-Task

Activity Time frame Time

Allocation

Mark Allocation

1 Safety selection and use of hand and power tools 05 Hour 12 2 Selection and use of electronic test equipment and

computer-aided program 25 Hours 40

3 Identification of components and materials 05 Hour 20

4 Soldering and layout of components 15 Hours 12

5 Workmanship of the completed task 05 Hour 8 6 Understanding of DC and AC circuit 05 Hour 8

TOTAL 6 Hours 100

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

4 Resource requirements

41

42

MATERIALS DESCRIPTION VALUE QUANTITY

COMPONENTS

AND

CONSUMABLES

Resistor (R1)

Resistor (R2)

Resistors (R3 amp R4)

Capacitor (C1)

OP AMP

Holder

LED (1amp2)

Holder

Switch (S1)

Battery 9V

Connector

Box

Vero Board

Wire PVC

Wire PVC

Mirror Tape

TOOLS

Multi meter

Soldering iron TIP plusmn

15mm

Long nose pliers

Side cutters

Fixed

Fixed

Fixed

Electrolytic

555

For 555

Any colour

LED

Mini Toggle SPST

For Battery

No ABS10BLACK

Communica

Stranded Red amp

Black

Solid any colour for

bridges

Volt amps etc

1K frac14 W

22K frac14 W or 1OK

680 Ω

100 micro F

555

Panel Mount

MS550

PM3

113 mm X 62 mm

x 26 mm

50x50 mm

05mmsup2 x 100mm

05mmsup2 x 100mm

50mm

Range Unit to

milli

1

1

2

1

1

1

2

2

1

1

1

1

1

1

1

1

1

1

1

1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

Power tools (Drilling

Machine)

Drill Bits

Sucker Solder or

Solda wick

Stanley Knife

Computer with

printer

Computer program

Crocodile Clips

Component

catalogue

Helping Hands

1

1

1

1

1

1

1

1

1

5 Assessment

The following assessment tools are provided in Section 3 for the full conduct of the

assessment of the ISAT

Sub-tasks 1 - 6 Rubric

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

SECTION 2 INSTRUCTIONS TO LECTURERS

1

2

3

4

5

6

7

8

9

10

11

12

13

Study the ISAT task described in SECTION 1

INSTRUCTIONS TO STUDENTS and ASSESSMENT TOOLS must be given to

each student and sufficiently in advance for preparation and fulfilment of the ISAT

task

This ISAT task is an individual task and no help from any person outside is

allowed

All the equipment of this ISAT must be given to the student

Carefully note the requirements of the Assessment Tools provided in SECTION 3

All arrangements for ordering of consumables preparation of workshops and

simulation areas staff deployment added facilities and requirements record

sheets answer sheets etc must be made in advance to ensure the successful

conduct of the ISAT

Student performance in the ISAT must conclude with a record of the studentrsquos

performance as provided in SECTION 4

Ensure that the student understands the assessment criteria

Ensure that the student understands the competence descriptors of the

assessment rubrics (attached)

The ISAT assesses the various skills attained in the three vocational subjects

Each lecturer is to ensure that during the year students have sufficient practice to

master the skills and knowledge required to complete the ISAT

A judgement of competent or higher will only be achieved if the studentrsquos project

is functional

The lecturer must assess the project in stages as indicated in Instructions to

students to ensure that valid and authentic assessment that measures the skills

knowledge attitude and values (SKAV) required by the task takes place

The ISAT forms part of the studentrsquos promotional mark and therefore must be

conducted under examination conditions in a simulated or structured environment

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

SECTION 3 ASSESSMENT TOOLS SUB-TASK 1 Safety selection and use of hand and power tools

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Use of safety equipment

The correct use of safety equipment is demonstrated in all applications (4 marks)

The correct use of safety equipment is demonstrated in most applications (3 marks)

The correct use of safety equipment is demonstrated with short comings in some applications (2 marks)

Little or no correct use of safety equipment is demonstrated (0-1 mark)

Housekeeping

Demonstrates excellent housekeeping during and after task (4 marks)

Demonstrates good housekeeping after completion of task (3 marks)

Demonstrates acceptable level of housekeeping after completion of task (2 marks)

Demonstrate poor housekeeping during and after task (0-1 mark)

Use of hand and power tools

Demonstrates the correct use of hand tools in all applications (4 marks)

Demonstrates the correct use of hand tools in most applications (3 marks)

Demonstrates the correct use of hand tools in some applications (2 marks)

Demonstrates the incorrect use of hand tools (0-1 mark)

SUB-TOTAL 12

SUB-TASK 2 Selection and use of electronic test equipment and computer-aided program

Selection of test equipment

Selects all testing equipment as per task requirement correctly (5 marks)

Selects most of the essential testing equipment as per task requirement correctly (3 marks)

Selects some of the essential testing equipment requirement correctly (2 marks)

Select few or no essential testing equipment correctly (0-1 mark)

Use of test equipment

Demonstrates the correct use of all test equipments in all applications (5 marks)

Demonstrates the correct use of test equipment in most applications (3 marks)

Demonstrates the correct use of test equipment in some applications (2 marks)

Demonstrate the incorrect use of test equipment in all applications (0-1 mark)

Selection of scales in a range during testing

Demonstrate to select different scales during testing of all components (5 marks)

Demonstrate to select different scales during testing of most of the components (3 Marks)

Demonstrate to select different scales during testing of some of the components (2 Marks)

Demonstrate to select no scales during testing of the components (0-1 Marks)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Correct interpretation of meter readings

Demonstrate to interpret all the readings observed correct (5 Marks)

Demonstrate to interpret most the readings observed correct (3 Marks)

Demonstrate to interpret some the readings observed correct (2 Marks)

Demonstrate to interpret none of the readings observed correct (0-1 Marks)

Reproducing of circuit electronically

Demonstrate the ability to redraw the circuit completely electronically (5 marks)

Demonstrate the ability to redraw the circuit electronically (3 marks)

Demonstrate the ability to redraw part of the circuit completely electronically (2 marks)

Demonstrate the ability to redraw no circuit electronically (0-1 marks)

Testing of the circuit electronically

Demonstrate the ability that the circuit operates in full (5 marks)

Demonstrate the ability that the circuit operates (3 marks)

Demonstrate the ability that some part of the circuit operates (2 marks)

Demonstrate the ability that the circuit does not operates (0-1 marks)

Use of computerised program

Demonstrate the ability to use the program correctly (5 marks)

Demonstrate the ability to use the program (3 marks)

Show some ability to use the program (2 marks)

Little or no correct use of the program (0-1 mark)

Testing of operation of circuit

Demonstrates that the circuit operates with first test (5 marks)

Demonstrates that the circuit operates (3 marks)

Demonstrates that the circuit does not operates (2 marks)

Demonstrates no ability to test for correctness of circuit (0-1 mark)

SUB-TOTAL 40

SUB-TASK 3 Identification of components and materials

Identification of components according to circuit diagram layout

Identifies all components correctly according to circuit diagram layout (4 marks)

Identifies most of the components correctly according to circuit diagram layout (3 marks)

Identifies some of the components correctly according to circuit diagram layout (2 marks)

Identifies few or no components correctly (0-1 mark)

Selection of size and type of solder

Selects the correct size and type of solder every time (4 marks)

Selects the correct size and type of solder most of the time (3 marks)

Selects the correct size and type of solder some of the time (2 marks)

Selects few or no correct size and type of solder (0-1 mark)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 9

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Can interpret values on components

Can read and understand the printed information on all components (4 marks)

Can read and understand the printed information on most of the components (3 marks)

Can read and understand the printed information on some of the components (2 marks)

Can read and understand the printed information on any components (0-1 marks)

Can produce values of components by colour coding

Can determine the value of all the components by their colour coding (4 marks)

Can determine the value of most of the components by their colour coding (3 marks)

Can determine the value of some of the components by their colour coding (2 marks)

Can determine no value of all the components by their colour coding (0-1 marks)

Can interpret information in component catalogue

Can look up and interpret all the components in a catalogue (4 marks)

Can look up and interpret most of the components in a catalogue (3 marks)

Can look up and interpret some of the components in a catalogue (2 marks)

Canrsquot look up and interpret any components in a catalogue (0-1 marks)

SUB-TOTAL 20

SUB-TASK 4 Soldering and Layout of components

Arrangement of components on Planning Sheet and Vero board

Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)

Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)

Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)

Demonstrates a poor arrangement of components (0-1 mark)

Checking of polarity of components

Checks the polarity of all components (4 marks)

Checks the polarity of most components (3 marks)

Checks the polarity of some components (2 marks)

Checks few or no polarity of any component (0-1 mark)

Soldering Demonstrates excellent ability to solder (4 marks)

Demonstrates an adequate ability to solder (3 marks)

Student demonstrates a reasonable ability to solder (2 marks)

Student demonstrates no ability to solder (0-1 mark)

SUB-TOTAL 12

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 10

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

SUB-TASK 5 Workmanship of the completed task

Functionality of the circuit

Circuit is operational on first attempt (4 marks)

Circuit is operational on second attempt after fault finding (3 marks)

Circuit is operational on third attempt after fault finding (2 marks)

Circuit is not operational after fourth attempt (0-1 mark)

Workmanship

Shows excellent workmanship in all specifications of task (4 marks)

Shows high level of competence on workmanship in all specifications of the task (3 marks)

Shows acceptable level of workmanship in some of the specifications of the task (2 marks)

Shows poor workmanship in most of the specifications of the task (0-1 mark)

SUB-TOTAL 8

SUB-TASK 6 Understanding of DC and AC circuits

Interpretation and analysis of circuit diagram

Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)

Demonstrates a good interpretation and analysis of circuit diagram (3 marks)

Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)

Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)

Testing and fault finding

Demonstrates excellent ability to test and find faults of the task (4 marks)

Demonstrates high level of ability to test and find faults of the task (3 marks)

Demonstrates some ability to test and find faults of the task (2 marks)

Demonstrates little or no ability to test and find faults of the task (0-1 mark)

SUB-TOTAL 8

TOTAL 100

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 11

SECTION 4 RECORD OF PERFORMANCE

INTEGRATED SUMMATIVE ASSESSMENT TASK

College

Campus

Studentrsquos Surname and First Names

Studentrsquos ID Number

Lecturerrsquos Surname and Initials

Date of conclusion of assessment

ASSESSMENT GRID

TASKS MARK ALLOCATION

STUDENTrsquoS MARK

Sub-Task 1 Safety selection and use of hand and power tools

12

Sub-Task 2 Selection and use of electronic test equipment and computer-aided program

40

Sub-Task 3 Identification of components and materials

20

Sub-Task 4 Soldering and layout of components

12

Sub-Task 5 Workmanship of the completed task

8

Sub-Task 6 Understanding of DC and AC Circuit

8

TOTAL 100

ISAT MARK AS A PERCENTAGE

COMPETENCE LEVEL INDICATORS

5-Point Achievement Rating Scale

5 (80-100)

4 (70-79)

3 (50-69)

2 (40-49)

1 (0-39)

Competency Level Indicators

Rating Code Rating Marks

5 Outstanding 80 ndash 100

4 Highly Competent 70 ndash79

3 Competent 50 ndash 69

2 Not Yet Competent 40 ndash49

1 Not Achieved 0 ndash 39

Studentrsquos competence level

Studentrsquos signature

Lecturerrsquos signature

Date

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over

NATIONAL CERTIFICATE (VOCATIONAL)

NQF LEVEL 2

INTEGRATED SUMMATIVE ASSESSMENT TASK

PROGRAMME

ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION

2010 ndash 2012

This document consists of 8 pages

INSTRUCTIONS TO STUDENTS

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 2

INSTRUCTIONS TO STUDENTS

This practical application task tests the studentrsquos ability to apply the knowledge and skills

acquired in the Electrical Infrastructure and Construction level 2 The work required of the

student in this Integrated Summative Assessment Task (ISAT) is an important and

compulsory component of the studies

1 You are required to

11

12

13

14

15

16

Study the task carefully

Note the time allocations per task

Note the submission dates

Pay careful attention to the mark allocated per section and the total

Study the resources required

Note the elements of the Assessment Tool that will be used to evaluate your

performance in each sub-task This is to ensure that you prepare sufficiently for

the conduct of the ISAT

2 Description of the task

The student must construct a-stable multi vibrator as per specifications given The task

consists of six sub-tasks

21 Safety selection and use of hand and power tools

22 Selection and use of electronic test equipment and computer aided program

23 Identification of components and materials

24 Soldering and layout of components

25 Workmanship of the completed task

26 Understanding of DC and AC circuit

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 3

3 Instructions for the task

SUB-TASK 1

Safety selection and use of hand power tools

The planning stage will be assessed and be part of the ISAT marks

Select the tools that you will need to perform this task Test the power machines for safety

and check the extension cord if it is save to use While you are working keep your

surroundings clean and do not waste material unnecessarily Use safety equipments only

is it is necessary After you have completed your task clean-up and pack away all tools

and equipments that you have used

SUB-TASK 2

Selection and use of electronic test equipment and computer aided program

Use the component catalogue and identify the five legs to be used Place the OPAMP

correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits

between the two sides of the IC Make use of a computer aided program to draw the circuit

and test the circuit to determine whether it will operate Transfer this drawing to the

attached diagram sheet

SUB-TASK 3

Identification of components and material

Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the

legs of the components to suit the holes in the Vero board Make sure that the

components are installed in such a way that you can solder the legs of the components to

the board

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

SUB-TASK 4

Soldering and layout of components

Do not use too much solder when you solder the components to the board Put the tip of

the soldering iron to both the component and the Vero board to ensure enough heat on

both This will ensure that no hot connections occur Do not keep the soldering iron too

long at one place on the board it will over heat and the conductor will part from the board

After you have soldered cut the access of the legs of the components short and make

your project tidy

SUB-TASK 5

Workmanship of the completed task

Check for loose connection on the soldering of the components Cut of excess legs of the

components Insert the IC correctly in the IC holder Insert and connect the battery in the

holder Test the a-stable multi vibrator by switching on the toggle switch after you have

put in the battery The two LEDs will light up one after the other

SUB-TASK 6

Understanding of DC and AC Circuit

After switching the power on and the OPAMP operates take it to the assessor for

assessment If the OPAMP does not operate apply fault finding techniques and solve the

problem

Refer to the attached Data Sheet all the time

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

CIRCUIT DIAGRAM

FIGURE 1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

PHYSICAL LAYOUT OF PROJECT

FIGURE 2

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET

Page 2: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 2

SECTION 1 INTRODUCTION

1 Practical purpose and value of the ISAT to the workplace

The task requires integrated application of competency knowledge and skills including

cutting drilling planning Vero board layout fitting and soldering components to ultimately

construct an a-stable multivibrator The task should take place in a simulated or structured

environment The process requires compliance to safety regulations and appropriate

housekeeping

2 Scope of the ISAT

This ISAT cover topic 1 of Electronic Control and Digital Electronics Subject Outcomes 1

2 and 3 are covered in this task

Demonstrate safety procedures followed when soldering and desoldering on a PC

board and on vero board

Demonstrate the manual dexterity needed to remove and replace a variety of

components on a PC board

Show how to find any semi-conductors operational limits by using technical manuals

Interpret the data found in technical manuals

Show how to look up replacement parts in technical manuals

Describe the uses application and functioning of timing circuits

Describe the uses application and functioning of filter circuits

Demonstrate the ability to design construct and test timing filter and oscillator circuits

observing the appropriate safety precautions and using the appropriate test equipment

Demonstrate the ability to design a circuit with a computer-aided program and test run

the circuit

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 3

Electrical Principles and Practice

Topics Subject outcome

1 1 Relation between electrical entities

2 1 Series parallel resistors

3 2 Applying testing instruments

4 1 Interpret circuit drawings and diagrams

5 1 Identifying different components

Workshop Practice

Topics Subject outcome

1 1amp2 Apply safety procedures

2 1 Know treatment to injuries

3 1amp2 Have knowledge with hand and power tools

4 1 Workshop procedures

5 1 Soldering of circuit

Electronic control and digital electronics

Topics Subject outcome

1 1 2 3 amp 4 Components and circuit drawings

2 2 Binary theory

3 ISAT overview

Sub-Task

Activity Time frame Time

Allocation

Mark Allocation

1 Safety selection and use of hand and power tools 05 Hour 12 2 Selection and use of electronic test equipment and

computer-aided program 25 Hours 40

3 Identification of components and materials 05 Hour 20

4 Soldering and layout of components 15 Hours 12

5 Workmanship of the completed task 05 Hour 8 6 Understanding of DC and AC circuit 05 Hour 8

TOTAL 6 Hours 100

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

4 Resource requirements

41

42

MATERIALS DESCRIPTION VALUE QUANTITY

COMPONENTS

AND

CONSUMABLES

Resistor (R1)

Resistor (R2)

Resistors (R3 amp R4)

Capacitor (C1)

OP AMP

Holder

LED (1amp2)

Holder

Switch (S1)

Battery 9V

Connector

Box

Vero Board

Wire PVC

Wire PVC

Mirror Tape

TOOLS

Multi meter

Soldering iron TIP plusmn

15mm

Long nose pliers

Side cutters

Fixed

Fixed

Fixed

Electrolytic

555

For 555

Any colour

LED

Mini Toggle SPST

For Battery

No ABS10BLACK

Communica

Stranded Red amp

Black

Solid any colour for

bridges

Volt amps etc

1K frac14 W

22K frac14 W or 1OK

680 Ω

100 micro F

555

Panel Mount

MS550

PM3

113 mm X 62 mm

x 26 mm

50x50 mm

05mmsup2 x 100mm

05mmsup2 x 100mm

50mm

Range Unit to

milli

1

1

2

1

1

1

2

2

1

1

1

1

1

1

1

1

1

1

1

1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

Power tools (Drilling

Machine)

Drill Bits

Sucker Solder or

Solda wick

Stanley Knife

Computer with

printer

Computer program

Crocodile Clips

Component

catalogue

Helping Hands

1

1

1

1

1

1

1

1

1

5 Assessment

The following assessment tools are provided in Section 3 for the full conduct of the

assessment of the ISAT

Sub-tasks 1 - 6 Rubric

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

SECTION 2 INSTRUCTIONS TO LECTURERS

1

2

3

4

5

6

7

8

9

10

11

12

13

Study the ISAT task described in SECTION 1

INSTRUCTIONS TO STUDENTS and ASSESSMENT TOOLS must be given to

each student and sufficiently in advance for preparation and fulfilment of the ISAT

task

This ISAT task is an individual task and no help from any person outside is

allowed

All the equipment of this ISAT must be given to the student

Carefully note the requirements of the Assessment Tools provided in SECTION 3

All arrangements for ordering of consumables preparation of workshops and

simulation areas staff deployment added facilities and requirements record

sheets answer sheets etc must be made in advance to ensure the successful

conduct of the ISAT

Student performance in the ISAT must conclude with a record of the studentrsquos

performance as provided in SECTION 4

Ensure that the student understands the assessment criteria

Ensure that the student understands the competence descriptors of the

assessment rubrics (attached)

The ISAT assesses the various skills attained in the three vocational subjects

Each lecturer is to ensure that during the year students have sufficient practice to

master the skills and knowledge required to complete the ISAT

A judgement of competent or higher will only be achieved if the studentrsquos project

is functional

The lecturer must assess the project in stages as indicated in Instructions to

students to ensure that valid and authentic assessment that measures the skills

knowledge attitude and values (SKAV) required by the task takes place

The ISAT forms part of the studentrsquos promotional mark and therefore must be

conducted under examination conditions in a simulated or structured environment

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

SECTION 3 ASSESSMENT TOOLS SUB-TASK 1 Safety selection and use of hand and power tools

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Use of safety equipment

The correct use of safety equipment is demonstrated in all applications (4 marks)

The correct use of safety equipment is demonstrated in most applications (3 marks)

The correct use of safety equipment is demonstrated with short comings in some applications (2 marks)

Little or no correct use of safety equipment is demonstrated (0-1 mark)

Housekeeping

Demonstrates excellent housekeeping during and after task (4 marks)

Demonstrates good housekeeping after completion of task (3 marks)

Demonstrates acceptable level of housekeeping after completion of task (2 marks)

Demonstrate poor housekeeping during and after task (0-1 mark)

Use of hand and power tools

Demonstrates the correct use of hand tools in all applications (4 marks)

Demonstrates the correct use of hand tools in most applications (3 marks)

Demonstrates the correct use of hand tools in some applications (2 marks)

Demonstrates the incorrect use of hand tools (0-1 mark)

SUB-TOTAL 12

SUB-TASK 2 Selection and use of electronic test equipment and computer-aided program

Selection of test equipment

Selects all testing equipment as per task requirement correctly (5 marks)

Selects most of the essential testing equipment as per task requirement correctly (3 marks)

Selects some of the essential testing equipment requirement correctly (2 marks)

Select few or no essential testing equipment correctly (0-1 mark)

Use of test equipment

Demonstrates the correct use of all test equipments in all applications (5 marks)

Demonstrates the correct use of test equipment in most applications (3 marks)

Demonstrates the correct use of test equipment in some applications (2 marks)

Demonstrate the incorrect use of test equipment in all applications (0-1 mark)

Selection of scales in a range during testing

Demonstrate to select different scales during testing of all components (5 marks)

Demonstrate to select different scales during testing of most of the components (3 Marks)

Demonstrate to select different scales during testing of some of the components (2 Marks)

Demonstrate to select no scales during testing of the components (0-1 Marks)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Correct interpretation of meter readings

Demonstrate to interpret all the readings observed correct (5 Marks)

Demonstrate to interpret most the readings observed correct (3 Marks)

Demonstrate to interpret some the readings observed correct (2 Marks)

Demonstrate to interpret none of the readings observed correct (0-1 Marks)

Reproducing of circuit electronically

Demonstrate the ability to redraw the circuit completely electronically (5 marks)

Demonstrate the ability to redraw the circuit electronically (3 marks)

Demonstrate the ability to redraw part of the circuit completely electronically (2 marks)

Demonstrate the ability to redraw no circuit electronically (0-1 marks)

Testing of the circuit electronically

Demonstrate the ability that the circuit operates in full (5 marks)

Demonstrate the ability that the circuit operates (3 marks)

Demonstrate the ability that some part of the circuit operates (2 marks)

Demonstrate the ability that the circuit does not operates (0-1 marks)

Use of computerised program

Demonstrate the ability to use the program correctly (5 marks)

Demonstrate the ability to use the program (3 marks)

Show some ability to use the program (2 marks)

Little or no correct use of the program (0-1 mark)

Testing of operation of circuit

Demonstrates that the circuit operates with first test (5 marks)

Demonstrates that the circuit operates (3 marks)

Demonstrates that the circuit does not operates (2 marks)

Demonstrates no ability to test for correctness of circuit (0-1 mark)

SUB-TOTAL 40

SUB-TASK 3 Identification of components and materials

Identification of components according to circuit diagram layout

Identifies all components correctly according to circuit diagram layout (4 marks)

Identifies most of the components correctly according to circuit diagram layout (3 marks)

Identifies some of the components correctly according to circuit diagram layout (2 marks)

Identifies few or no components correctly (0-1 mark)

Selection of size and type of solder

Selects the correct size and type of solder every time (4 marks)

Selects the correct size and type of solder most of the time (3 marks)

Selects the correct size and type of solder some of the time (2 marks)

Selects few or no correct size and type of solder (0-1 mark)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 9

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Can interpret values on components

Can read and understand the printed information on all components (4 marks)

Can read and understand the printed information on most of the components (3 marks)

Can read and understand the printed information on some of the components (2 marks)

Can read and understand the printed information on any components (0-1 marks)

Can produce values of components by colour coding

Can determine the value of all the components by their colour coding (4 marks)

Can determine the value of most of the components by their colour coding (3 marks)

Can determine the value of some of the components by their colour coding (2 marks)

Can determine no value of all the components by their colour coding (0-1 marks)

Can interpret information in component catalogue

Can look up and interpret all the components in a catalogue (4 marks)

Can look up and interpret most of the components in a catalogue (3 marks)

Can look up and interpret some of the components in a catalogue (2 marks)

Canrsquot look up and interpret any components in a catalogue (0-1 marks)

SUB-TOTAL 20

SUB-TASK 4 Soldering and Layout of components

Arrangement of components on Planning Sheet and Vero board

Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)

Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)

Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)

Demonstrates a poor arrangement of components (0-1 mark)

Checking of polarity of components

Checks the polarity of all components (4 marks)

Checks the polarity of most components (3 marks)

Checks the polarity of some components (2 marks)

Checks few or no polarity of any component (0-1 mark)

Soldering Demonstrates excellent ability to solder (4 marks)

Demonstrates an adequate ability to solder (3 marks)

Student demonstrates a reasonable ability to solder (2 marks)

Student demonstrates no ability to solder (0-1 mark)

SUB-TOTAL 12

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 10

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

SUB-TASK 5 Workmanship of the completed task

Functionality of the circuit

Circuit is operational on first attempt (4 marks)

Circuit is operational on second attempt after fault finding (3 marks)

Circuit is operational on third attempt after fault finding (2 marks)

Circuit is not operational after fourth attempt (0-1 mark)

Workmanship

Shows excellent workmanship in all specifications of task (4 marks)

Shows high level of competence on workmanship in all specifications of the task (3 marks)

Shows acceptable level of workmanship in some of the specifications of the task (2 marks)

Shows poor workmanship in most of the specifications of the task (0-1 mark)

SUB-TOTAL 8

SUB-TASK 6 Understanding of DC and AC circuits

Interpretation and analysis of circuit diagram

Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)

Demonstrates a good interpretation and analysis of circuit diagram (3 marks)

Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)

Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)

Testing and fault finding

Demonstrates excellent ability to test and find faults of the task (4 marks)

Demonstrates high level of ability to test and find faults of the task (3 marks)

Demonstrates some ability to test and find faults of the task (2 marks)

Demonstrates little or no ability to test and find faults of the task (0-1 mark)

SUB-TOTAL 8

TOTAL 100

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 11

SECTION 4 RECORD OF PERFORMANCE

INTEGRATED SUMMATIVE ASSESSMENT TASK

College

Campus

Studentrsquos Surname and First Names

Studentrsquos ID Number

Lecturerrsquos Surname and Initials

Date of conclusion of assessment

ASSESSMENT GRID

TASKS MARK ALLOCATION

STUDENTrsquoS MARK

Sub-Task 1 Safety selection and use of hand and power tools

12

Sub-Task 2 Selection and use of electronic test equipment and computer-aided program

40

Sub-Task 3 Identification of components and materials

20

Sub-Task 4 Soldering and layout of components

12

Sub-Task 5 Workmanship of the completed task

8

Sub-Task 6 Understanding of DC and AC Circuit

8

TOTAL 100

ISAT MARK AS A PERCENTAGE

COMPETENCE LEVEL INDICATORS

5-Point Achievement Rating Scale

5 (80-100)

4 (70-79)

3 (50-69)

2 (40-49)

1 (0-39)

Competency Level Indicators

Rating Code Rating Marks

5 Outstanding 80 ndash 100

4 Highly Competent 70 ndash79

3 Competent 50 ndash 69

2 Not Yet Competent 40 ndash49

1 Not Achieved 0 ndash 39

Studentrsquos competence level

Studentrsquos signature

Lecturerrsquos signature

Date

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over

NATIONAL CERTIFICATE (VOCATIONAL)

NQF LEVEL 2

INTEGRATED SUMMATIVE ASSESSMENT TASK

PROGRAMME

ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION

2010 ndash 2012

This document consists of 8 pages

INSTRUCTIONS TO STUDENTS

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 2

INSTRUCTIONS TO STUDENTS

This practical application task tests the studentrsquos ability to apply the knowledge and skills

acquired in the Electrical Infrastructure and Construction level 2 The work required of the

student in this Integrated Summative Assessment Task (ISAT) is an important and

compulsory component of the studies

1 You are required to

11

12

13

14

15

16

Study the task carefully

Note the time allocations per task

Note the submission dates

Pay careful attention to the mark allocated per section and the total

Study the resources required

Note the elements of the Assessment Tool that will be used to evaluate your

performance in each sub-task This is to ensure that you prepare sufficiently for

the conduct of the ISAT

2 Description of the task

The student must construct a-stable multi vibrator as per specifications given The task

consists of six sub-tasks

21 Safety selection and use of hand and power tools

22 Selection and use of electronic test equipment and computer aided program

23 Identification of components and materials

24 Soldering and layout of components

25 Workmanship of the completed task

26 Understanding of DC and AC circuit

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 3

3 Instructions for the task

SUB-TASK 1

Safety selection and use of hand power tools

The planning stage will be assessed and be part of the ISAT marks

Select the tools that you will need to perform this task Test the power machines for safety

and check the extension cord if it is save to use While you are working keep your

surroundings clean and do not waste material unnecessarily Use safety equipments only

is it is necessary After you have completed your task clean-up and pack away all tools

and equipments that you have used

SUB-TASK 2

Selection and use of electronic test equipment and computer aided program

Use the component catalogue and identify the five legs to be used Place the OPAMP

correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits

between the two sides of the IC Make use of a computer aided program to draw the circuit

and test the circuit to determine whether it will operate Transfer this drawing to the

attached diagram sheet

SUB-TASK 3

Identification of components and material

Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the

legs of the components to suit the holes in the Vero board Make sure that the

components are installed in such a way that you can solder the legs of the components to

the board

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

SUB-TASK 4

Soldering and layout of components

Do not use too much solder when you solder the components to the board Put the tip of

the soldering iron to both the component and the Vero board to ensure enough heat on

both This will ensure that no hot connections occur Do not keep the soldering iron too

long at one place on the board it will over heat and the conductor will part from the board

After you have soldered cut the access of the legs of the components short and make

your project tidy

SUB-TASK 5

Workmanship of the completed task

Check for loose connection on the soldering of the components Cut of excess legs of the

components Insert the IC correctly in the IC holder Insert and connect the battery in the

holder Test the a-stable multi vibrator by switching on the toggle switch after you have

put in the battery The two LEDs will light up one after the other

SUB-TASK 6

Understanding of DC and AC Circuit

After switching the power on and the OPAMP operates take it to the assessor for

assessment If the OPAMP does not operate apply fault finding techniques and solve the

problem

Refer to the attached Data Sheet all the time

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

CIRCUIT DIAGRAM

FIGURE 1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

PHYSICAL LAYOUT OF PROJECT

FIGURE 2

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET

Page 3: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 3

Electrical Principles and Practice

Topics Subject outcome

1 1 Relation between electrical entities

2 1 Series parallel resistors

3 2 Applying testing instruments

4 1 Interpret circuit drawings and diagrams

5 1 Identifying different components

Workshop Practice

Topics Subject outcome

1 1amp2 Apply safety procedures

2 1 Know treatment to injuries

3 1amp2 Have knowledge with hand and power tools

4 1 Workshop procedures

5 1 Soldering of circuit

Electronic control and digital electronics

Topics Subject outcome

1 1 2 3 amp 4 Components and circuit drawings

2 2 Binary theory

3 ISAT overview

Sub-Task

Activity Time frame Time

Allocation

Mark Allocation

1 Safety selection and use of hand and power tools 05 Hour 12 2 Selection and use of electronic test equipment and

computer-aided program 25 Hours 40

3 Identification of components and materials 05 Hour 20

4 Soldering and layout of components 15 Hours 12

5 Workmanship of the completed task 05 Hour 8 6 Understanding of DC and AC circuit 05 Hour 8

TOTAL 6 Hours 100

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

4 Resource requirements

41

42

MATERIALS DESCRIPTION VALUE QUANTITY

COMPONENTS

AND

CONSUMABLES

Resistor (R1)

Resistor (R2)

Resistors (R3 amp R4)

Capacitor (C1)

OP AMP

Holder

LED (1amp2)

Holder

Switch (S1)

Battery 9V

Connector

Box

Vero Board

Wire PVC

Wire PVC

Mirror Tape

TOOLS

Multi meter

Soldering iron TIP plusmn

15mm

Long nose pliers

Side cutters

Fixed

Fixed

Fixed

Electrolytic

555

For 555

Any colour

LED

Mini Toggle SPST

For Battery

No ABS10BLACK

Communica

Stranded Red amp

Black

Solid any colour for

bridges

Volt amps etc

1K frac14 W

22K frac14 W or 1OK

680 Ω

100 micro F

555

Panel Mount

MS550

PM3

113 mm X 62 mm

x 26 mm

50x50 mm

05mmsup2 x 100mm

05mmsup2 x 100mm

50mm

Range Unit to

milli

1

1

2

1

1

1

2

2

1

1

1

1

1

1

1

1

1

1

1

1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

Power tools (Drilling

Machine)

Drill Bits

Sucker Solder or

Solda wick

Stanley Knife

Computer with

printer

Computer program

Crocodile Clips

Component

catalogue

Helping Hands

1

1

1

1

1

1

1

1

1

5 Assessment

The following assessment tools are provided in Section 3 for the full conduct of the

assessment of the ISAT

Sub-tasks 1 - 6 Rubric

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

SECTION 2 INSTRUCTIONS TO LECTURERS

1

2

3

4

5

6

7

8

9

10

11

12

13

Study the ISAT task described in SECTION 1

INSTRUCTIONS TO STUDENTS and ASSESSMENT TOOLS must be given to

each student and sufficiently in advance for preparation and fulfilment of the ISAT

task

This ISAT task is an individual task and no help from any person outside is

allowed

All the equipment of this ISAT must be given to the student

Carefully note the requirements of the Assessment Tools provided in SECTION 3

All arrangements for ordering of consumables preparation of workshops and

simulation areas staff deployment added facilities and requirements record

sheets answer sheets etc must be made in advance to ensure the successful

conduct of the ISAT

Student performance in the ISAT must conclude with a record of the studentrsquos

performance as provided in SECTION 4

Ensure that the student understands the assessment criteria

Ensure that the student understands the competence descriptors of the

assessment rubrics (attached)

The ISAT assesses the various skills attained in the three vocational subjects

Each lecturer is to ensure that during the year students have sufficient practice to

master the skills and knowledge required to complete the ISAT

A judgement of competent or higher will only be achieved if the studentrsquos project

is functional

The lecturer must assess the project in stages as indicated in Instructions to

students to ensure that valid and authentic assessment that measures the skills

knowledge attitude and values (SKAV) required by the task takes place

The ISAT forms part of the studentrsquos promotional mark and therefore must be

conducted under examination conditions in a simulated or structured environment

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

SECTION 3 ASSESSMENT TOOLS SUB-TASK 1 Safety selection and use of hand and power tools

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Use of safety equipment

The correct use of safety equipment is demonstrated in all applications (4 marks)

The correct use of safety equipment is demonstrated in most applications (3 marks)

The correct use of safety equipment is demonstrated with short comings in some applications (2 marks)

Little or no correct use of safety equipment is demonstrated (0-1 mark)

Housekeeping

Demonstrates excellent housekeeping during and after task (4 marks)

Demonstrates good housekeeping after completion of task (3 marks)

Demonstrates acceptable level of housekeeping after completion of task (2 marks)

Demonstrate poor housekeeping during and after task (0-1 mark)

Use of hand and power tools

Demonstrates the correct use of hand tools in all applications (4 marks)

Demonstrates the correct use of hand tools in most applications (3 marks)

Demonstrates the correct use of hand tools in some applications (2 marks)

Demonstrates the incorrect use of hand tools (0-1 mark)

SUB-TOTAL 12

SUB-TASK 2 Selection and use of electronic test equipment and computer-aided program

Selection of test equipment

Selects all testing equipment as per task requirement correctly (5 marks)

Selects most of the essential testing equipment as per task requirement correctly (3 marks)

Selects some of the essential testing equipment requirement correctly (2 marks)

Select few or no essential testing equipment correctly (0-1 mark)

Use of test equipment

Demonstrates the correct use of all test equipments in all applications (5 marks)

Demonstrates the correct use of test equipment in most applications (3 marks)

Demonstrates the correct use of test equipment in some applications (2 marks)

Demonstrate the incorrect use of test equipment in all applications (0-1 mark)

Selection of scales in a range during testing

Demonstrate to select different scales during testing of all components (5 marks)

Demonstrate to select different scales during testing of most of the components (3 Marks)

Demonstrate to select different scales during testing of some of the components (2 Marks)

Demonstrate to select no scales during testing of the components (0-1 Marks)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Correct interpretation of meter readings

Demonstrate to interpret all the readings observed correct (5 Marks)

Demonstrate to interpret most the readings observed correct (3 Marks)

Demonstrate to interpret some the readings observed correct (2 Marks)

Demonstrate to interpret none of the readings observed correct (0-1 Marks)

Reproducing of circuit electronically

Demonstrate the ability to redraw the circuit completely electronically (5 marks)

Demonstrate the ability to redraw the circuit electronically (3 marks)

Demonstrate the ability to redraw part of the circuit completely electronically (2 marks)

Demonstrate the ability to redraw no circuit electronically (0-1 marks)

Testing of the circuit electronically

Demonstrate the ability that the circuit operates in full (5 marks)

Demonstrate the ability that the circuit operates (3 marks)

Demonstrate the ability that some part of the circuit operates (2 marks)

Demonstrate the ability that the circuit does not operates (0-1 marks)

Use of computerised program

Demonstrate the ability to use the program correctly (5 marks)

Demonstrate the ability to use the program (3 marks)

Show some ability to use the program (2 marks)

Little or no correct use of the program (0-1 mark)

Testing of operation of circuit

Demonstrates that the circuit operates with first test (5 marks)

Demonstrates that the circuit operates (3 marks)

Demonstrates that the circuit does not operates (2 marks)

Demonstrates no ability to test for correctness of circuit (0-1 mark)

SUB-TOTAL 40

SUB-TASK 3 Identification of components and materials

Identification of components according to circuit diagram layout

Identifies all components correctly according to circuit diagram layout (4 marks)

Identifies most of the components correctly according to circuit diagram layout (3 marks)

Identifies some of the components correctly according to circuit diagram layout (2 marks)

Identifies few or no components correctly (0-1 mark)

Selection of size and type of solder

Selects the correct size and type of solder every time (4 marks)

Selects the correct size and type of solder most of the time (3 marks)

Selects the correct size and type of solder some of the time (2 marks)

Selects few or no correct size and type of solder (0-1 mark)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 9

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Can interpret values on components

Can read and understand the printed information on all components (4 marks)

Can read and understand the printed information on most of the components (3 marks)

Can read and understand the printed information on some of the components (2 marks)

Can read and understand the printed information on any components (0-1 marks)

Can produce values of components by colour coding

Can determine the value of all the components by their colour coding (4 marks)

Can determine the value of most of the components by their colour coding (3 marks)

Can determine the value of some of the components by their colour coding (2 marks)

Can determine no value of all the components by their colour coding (0-1 marks)

Can interpret information in component catalogue

Can look up and interpret all the components in a catalogue (4 marks)

Can look up and interpret most of the components in a catalogue (3 marks)

Can look up and interpret some of the components in a catalogue (2 marks)

Canrsquot look up and interpret any components in a catalogue (0-1 marks)

SUB-TOTAL 20

SUB-TASK 4 Soldering and Layout of components

Arrangement of components on Planning Sheet and Vero board

Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)

Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)

Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)

Demonstrates a poor arrangement of components (0-1 mark)

Checking of polarity of components

Checks the polarity of all components (4 marks)

Checks the polarity of most components (3 marks)

Checks the polarity of some components (2 marks)

Checks few or no polarity of any component (0-1 mark)

Soldering Demonstrates excellent ability to solder (4 marks)

Demonstrates an adequate ability to solder (3 marks)

Student demonstrates a reasonable ability to solder (2 marks)

Student demonstrates no ability to solder (0-1 mark)

SUB-TOTAL 12

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 10

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

SUB-TASK 5 Workmanship of the completed task

Functionality of the circuit

Circuit is operational on first attempt (4 marks)

Circuit is operational on second attempt after fault finding (3 marks)

Circuit is operational on third attempt after fault finding (2 marks)

Circuit is not operational after fourth attempt (0-1 mark)

Workmanship

Shows excellent workmanship in all specifications of task (4 marks)

Shows high level of competence on workmanship in all specifications of the task (3 marks)

Shows acceptable level of workmanship in some of the specifications of the task (2 marks)

Shows poor workmanship in most of the specifications of the task (0-1 mark)

SUB-TOTAL 8

SUB-TASK 6 Understanding of DC and AC circuits

Interpretation and analysis of circuit diagram

Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)

Demonstrates a good interpretation and analysis of circuit diagram (3 marks)

Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)

Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)

Testing and fault finding

Demonstrates excellent ability to test and find faults of the task (4 marks)

Demonstrates high level of ability to test and find faults of the task (3 marks)

Demonstrates some ability to test and find faults of the task (2 marks)

Demonstrates little or no ability to test and find faults of the task (0-1 mark)

SUB-TOTAL 8

TOTAL 100

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 11

SECTION 4 RECORD OF PERFORMANCE

INTEGRATED SUMMATIVE ASSESSMENT TASK

College

Campus

Studentrsquos Surname and First Names

Studentrsquos ID Number

Lecturerrsquos Surname and Initials

Date of conclusion of assessment

ASSESSMENT GRID

TASKS MARK ALLOCATION

STUDENTrsquoS MARK

Sub-Task 1 Safety selection and use of hand and power tools

12

Sub-Task 2 Selection and use of electronic test equipment and computer-aided program

40

Sub-Task 3 Identification of components and materials

20

Sub-Task 4 Soldering and layout of components

12

Sub-Task 5 Workmanship of the completed task

8

Sub-Task 6 Understanding of DC and AC Circuit

8

TOTAL 100

ISAT MARK AS A PERCENTAGE

COMPETENCE LEVEL INDICATORS

5-Point Achievement Rating Scale

5 (80-100)

4 (70-79)

3 (50-69)

2 (40-49)

1 (0-39)

Competency Level Indicators

Rating Code Rating Marks

5 Outstanding 80 ndash 100

4 Highly Competent 70 ndash79

3 Competent 50 ndash 69

2 Not Yet Competent 40 ndash49

1 Not Achieved 0 ndash 39

Studentrsquos competence level

Studentrsquos signature

Lecturerrsquos signature

Date

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over

NATIONAL CERTIFICATE (VOCATIONAL)

NQF LEVEL 2

INTEGRATED SUMMATIVE ASSESSMENT TASK

PROGRAMME

ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION

2010 ndash 2012

This document consists of 8 pages

INSTRUCTIONS TO STUDENTS

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 2

INSTRUCTIONS TO STUDENTS

This practical application task tests the studentrsquos ability to apply the knowledge and skills

acquired in the Electrical Infrastructure and Construction level 2 The work required of the

student in this Integrated Summative Assessment Task (ISAT) is an important and

compulsory component of the studies

1 You are required to

11

12

13

14

15

16

Study the task carefully

Note the time allocations per task

Note the submission dates

Pay careful attention to the mark allocated per section and the total

Study the resources required

Note the elements of the Assessment Tool that will be used to evaluate your

performance in each sub-task This is to ensure that you prepare sufficiently for

the conduct of the ISAT

2 Description of the task

The student must construct a-stable multi vibrator as per specifications given The task

consists of six sub-tasks

21 Safety selection and use of hand and power tools

22 Selection and use of electronic test equipment and computer aided program

23 Identification of components and materials

24 Soldering and layout of components

25 Workmanship of the completed task

26 Understanding of DC and AC circuit

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 3

3 Instructions for the task

SUB-TASK 1

Safety selection and use of hand power tools

The planning stage will be assessed and be part of the ISAT marks

Select the tools that you will need to perform this task Test the power machines for safety

and check the extension cord if it is save to use While you are working keep your

surroundings clean and do not waste material unnecessarily Use safety equipments only

is it is necessary After you have completed your task clean-up and pack away all tools

and equipments that you have used

SUB-TASK 2

Selection and use of electronic test equipment and computer aided program

Use the component catalogue and identify the five legs to be used Place the OPAMP

correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits

between the two sides of the IC Make use of a computer aided program to draw the circuit

and test the circuit to determine whether it will operate Transfer this drawing to the

attached diagram sheet

SUB-TASK 3

Identification of components and material

Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the

legs of the components to suit the holes in the Vero board Make sure that the

components are installed in such a way that you can solder the legs of the components to

the board

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

SUB-TASK 4

Soldering and layout of components

Do not use too much solder when you solder the components to the board Put the tip of

the soldering iron to both the component and the Vero board to ensure enough heat on

both This will ensure that no hot connections occur Do not keep the soldering iron too

long at one place on the board it will over heat and the conductor will part from the board

After you have soldered cut the access of the legs of the components short and make

your project tidy

SUB-TASK 5

Workmanship of the completed task

Check for loose connection on the soldering of the components Cut of excess legs of the

components Insert the IC correctly in the IC holder Insert and connect the battery in the

holder Test the a-stable multi vibrator by switching on the toggle switch after you have

put in the battery The two LEDs will light up one after the other

SUB-TASK 6

Understanding of DC and AC Circuit

After switching the power on and the OPAMP operates take it to the assessor for

assessment If the OPAMP does not operate apply fault finding techniques and solve the

problem

Refer to the attached Data Sheet all the time

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

CIRCUIT DIAGRAM

FIGURE 1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

PHYSICAL LAYOUT OF PROJECT

FIGURE 2

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET

Page 4: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

4 Resource requirements

41

42

MATERIALS DESCRIPTION VALUE QUANTITY

COMPONENTS

AND

CONSUMABLES

Resistor (R1)

Resistor (R2)

Resistors (R3 amp R4)

Capacitor (C1)

OP AMP

Holder

LED (1amp2)

Holder

Switch (S1)

Battery 9V

Connector

Box

Vero Board

Wire PVC

Wire PVC

Mirror Tape

TOOLS

Multi meter

Soldering iron TIP plusmn

15mm

Long nose pliers

Side cutters

Fixed

Fixed

Fixed

Electrolytic

555

For 555

Any colour

LED

Mini Toggle SPST

For Battery

No ABS10BLACK

Communica

Stranded Red amp

Black

Solid any colour for

bridges

Volt amps etc

1K frac14 W

22K frac14 W or 1OK

680 Ω

100 micro F

555

Panel Mount

MS550

PM3

113 mm X 62 mm

x 26 mm

50x50 mm

05mmsup2 x 100mm

05mmsup2 x 100mm

50mm

Range Unit to

milli

1

1

2

1

1

1

2

2

1

1

1

1

1

1

1

1

1

1

1

1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

Power tools (Drilling

Machine)

Drill Bits

Sucker Solder or

Solda wick

Stanley Knife

Computer with

printer

Computer program

Crocodile Clips

Component

catalogue

Helping Hands

1

1

1

1

1

1

1

1

1

5 Assessment

The following assessment tools are provided in Section 3 for the full conduct of the

assessment of the ISAT

Sub-tasks 1 - 6 Rubric

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

SECTION 2 INSTRUCTIONS TO LECTURERS

1

2

3

4

5

6

7

8

9

10

11

12

13

Study the ISAT task described in SECTION 1

INSTRUCTIONS TO STUDENTS and ASSESSMENT TOOLS must be given to

each student and sufficiently in advance for preparation and fulfilment of the ISAT

task

This ISAT task is an individual task and no help from any person outside is

allowed

All the equipment of this ISAT must be given to the student

Carefully note the requirements of the Assessment Tools provided in SECTION 3

All arrangements for ordering of consumables preparation of workshops and

simulation areas staff deployment added facilities and requirements record

sheets answer sheets etc must be made in advance to ensure the successful

conduct of the ISAT

Student performance in the ISAT must conclude with a record of the studentrsquos

performance as provided in SECTION 4

Ensure that the student understands the assessment criteria

Ensure that the student understands the competence descriptors of the

assessment rubrics (attached)

The ISAT assesses the various skills attained in the three vocational subjects

Each lecturer is to ensure that during the year students have sufficient practice to

master the skills and knowledge required to complete the ISAT

A judgement of competent or higher will only be achieved if the studentrsquos project

is functional

The lecturer must assess the project in stages as indicated in Instructions to

students to ensure that valid and authentic assessment that measures the skills

knowledge attitude and values (SKAV) required by the task takes place

The ISAT forms part of the studentrsquos promotional mark and therefore must be

conducted under examination conditions in a simulated or structured environment

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

SECTION 3 ASSESSMENT TOOLS SUB-TASK 1 Safety selection and use of hand and power tools

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Use of safety equipment

The correct use of safety equipment is demonstrated in all applications (4 marks)

The correct use of safety equipment is demonstrated in most applications (3 marks)

The correct use of safety equipment is demonstrated with short comings in some applications (2 marks)

Little or no correct use of safety equipment is demonstrated (0-1 mark)

Housekeeping

Demonstrates excellent housekeeping during and after task (4 marks)

Demonstrates good housekeeping after completion of task (3 marks)

Demonstrates acceptable level of housekeeping after completion of task (2 marks)

Demonstrate poor housekeeping during and after task (0-1 mark)

Use of hand and power tools

Demonstrates the correct use of hand tools in all applications (4 marks)

Demonstrates the correct use of hand tools in most applications (3 marks)

Demonstrates the correct use of hand tools in some applications (2 marks)

Demonstrates the incorrect use of hand tools (0-1 mark)

SUB-TOTAL 12

SUB-TASK 2 Selection and use of electronic test equipment and computer-aided program

Selection of test equipment

Selects all testing equipment as per task requirement correctly (5 marks)

Selects most of the essential testing equipment as per task requirement correctly (3 marks)

Selects some of the essential testing equipment requirement correctly (2 marks)

Select few or no essential testing equipment correctly (0-1 mark)

Use of test equipment

Demonstrates the correct use of all test equipments in all applications (5 marks)

Demonstrates the correct use of test equipment in most applications (3 marks)

Demonstrates the correct use of test equipment in some applications (2 marks)

Demonstrate the incorrect use of test equipment in all applications (0-1 mark)

Selection of scales in a range during testing

Demonstrate to select different scales during testing of all components (5 marks)

Demonstrate to select different scales during testing of most of the components (3 Marks)

Demonstrate to select different scales during testing of some of the components (2 Marks)

Demonstrate to select no scales during testing of the components (0-1 Marks)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Correct interpretation of meter readings

Demonstrate to interpret all the readings observed correct (5 Marks)

Demonstrate to interpret most the readings observed correct (3 Marks)

Demonstrate to interpret some the readings observed correct (2 Marks)

Demonstrate to interpret none of the readings observed correct (0-1 Marks)

Reproducing of circuit electronically

Demonstrate the ability to redraw the circuit completely electronically (5 marks)

Demonstrate the ability to redraw the circuit electronically (3 marks)

Demonstrate the ability to redraw part of the circuit completely electronically (2 marks)

Demonstrate the ability to redraw no circuit electronically (0-1 marks)

Testing of the circuit electronically

Demonstrate the ability that the circuit operates in full (5 marks)

Demonstrate the ability that the circuit operates (3 marks)

Demonstrate the ability that some part of the circuit operates (2 marks)

Demonstrate the ability that the circuit does not operates (0-1 marks)

Use of computerised program

Demonstrate the ability to use the program correctly (5 marks)

Demonstrate the ability to use the program (3 marks)

Show some ability to use the program (2 marks)

Little or no correct use of the program (0-1 mark)

Testing of operation of circuit

Demonstrates that the circuit operates with first test (5 marks)

Demonstrates that the circuit operates (3 marks)

Demonstrates that the circuit does not operates (2 marks)

Demonstrates no ability to test for correctness of circuit (0-1 mark)

SUB-TOTAL 40

SUB-TASK 3 Identification of components and materials

Identification of components according to circuit diagram layout

Identifies all components correctly according to circuit diagram layout (4 marks)

Identifies most of the components correctly according to circuit diagram layout (3 marks)

Identifies some of the components correctly according to circuit diagram layout (2 marks)

Identifies few or no components correctly (0-1 mark)

Selection of size and type of solder

Selects the correct size and type of solder every time (4 marks)

Selects the correct size and type of solder most of the time (3 marks)

Selects the correct size and type of solder some of the time (2 marks)

Selects few or no correct size and type of solder (0-1 mark)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 9

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Can interpret values on components

Can read and understand the printed information on all components (4 marks)

Can read and understand the printed information on most of the components (3 marks)

Can read and understand the printed information on some of the components (2 marks)

Can read and understand the printed information on any components (0-1 marks)

Can produce values of components by colour coding

Can determine the value of all the components by their colour coding (4 marks)

Can determine the value of most of the components by their colour coding (3 marks)

Can determine the value of some of the components by their colour coding (2 marks)

Can determine no value of all the components by their colour coding (0-1 marks)

Can interpret information in component catalogue

Can look up and interpret all the components in a catalogue (4 marks)

Can look up and interpret most of the components in a catalogue (3 marks)

Can look up and interpret some of the components in a catalogue (2 marks)

Canrsquot look up and interpret any components in a catalogue (0-1 marks)

SUB-TOTAL 20

SUB-TASK 4 Soldering and Layout of components

Arrangement of components on Planning Sheet and Vero board

Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)

Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)

Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)

Demonstrates a poor arrangement of components (0-1 mark)

Checking of polarity of components

Checks the polarity of all components (4 marks)

Checks the polarity of most components (3 marks)

Checks the polarity of some components (2 marks)

Checks few or no polarity of any component (0-1 mark)

Soldering Demonstrates excellent ability to solder (4 marks)

Demonstrates an adequate ability to solder (3 marks)

Student demonstrates a reasonable ability to solder (2 marks)

Student demonstrates no ability to solder (0-1 mark)

SUB-TOTAL 12

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 10

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

SUB-TASK 5 Workmanship of the completed task

Functionality of the circuit

Circuit is operational on first attempt (4 marks)

Circuit is operational on second attempt after fault finding (3 marks)

Circuit is operational on third attempt after fault finding (2 marks)

Circuit is not operational after fourth attempt (0-1 mark)

Workmanship

Shows excellent workmanship in all specifications of task (4 marks)

Shows high level of competence on workmanship in all specifications of the task (3 marks)

Shows acceptable level of workmanship in some of the specifications of the task (2 marks)

Shows poor workmanship in most of the specifications of the task (0-1 mark)

SUB-TOTAL 8

SUB-TASK 6 Understanding of DC and AC circuits

Interpretation and analysis of circuit diagram

Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)

Demonstrates a good interpretation and analysis of circuit diagram (3 marks)

Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)

Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)

Testing and fault finding

Demonstrates excellent ability to test and find faults of the task (4 marks)

Demonstrates high level of ability to test and find faults of the task (3 marks)

Demonstrates some ability to test and find faults of the task (2 marks)

Demonstrates little or no ability to test and find faults of the task (0-1 mark)

SUB-TOTAL 8

TOTAL 100

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 11

SECTION 4 RECORD OF PERFORMANCE

INTEGRATED SUMMATIVE ASSESSMENT TASK

College

Campus

Studentrsquos Surname and First Names

Studentrsquos ID Number

Lecturerrsquos Surname and Initials

Date of conclusion of assessment

ASSESSMENT GRID

TASKS MARK ALLOCATION

STUDENTrsquoS MARK

Sub-Task 1 Safety selection and use of hand and power tools

12

Sub-Task 2 Selection and use of electronic test equipment and computer-aided program

40

Sub-Task 3 Identification of components and materials

20

Sub-Task 4 Soldering and layout of components

12

Sub-Task 5 Workmanship of the completed task

8

Sub-Task 6 Understanding of DC and AC Circuit

8

TOTAL 100

ISAT MARK AS A PERCENTAGE

COMPETENCE LEVEL INDICATORS

5-Point Achievement Rating Scale

5 (80-100)

4 (70-79)

3 (50-69)

2 (40-49)

1 (0-39)

Competency Level Indicators

Rating Code Rating Marks

5 Outstanding 80 ndash 100

4 Highly Competent 70 ndash79

3 Competent 50 ndash 69

2 Not Yet Competent 40 ndash49

1 Not Achieved 0 ndash 39

Studentrsquos competence level

Studentrsquos signature

Lecturerrsquos signature

Date

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over

NATIONAL CERTIFICATE (VOCATIONAL)

NQF LEVEL 2

INTEGRATED SUMMATIVE ASSESSMENT TASK

PROGRAMME

ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION

2010 ndash 2012

This document consists of 8 pages

INSTRUCTIONS TO STUDENTS

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 2

INSTRUCTIONS TO STUDENTS

This practical application task tests the studentrsquos ability to apply the knowledge and skills

acquired in the Electrical Infrastructure and Construction level 2 The work required of the

student in this Integrated Summative Assessment Task (ISAT) is an important and

compulsory component of the studies

1 You are required to

11

12

13

14

15

16

Study the task carefully

Note the time allocations per task

Note the submission dates

Pay careful attention to the mark allocated per section and the total

Study the resources required

Note the elements of the Assessment Tool that will be used to evaluate your

performance in each sub-task This is to ensure that you prepare sufficiently for

the conduct of the ISAT

2 Description of the task

The student must construct a-stable multi vibrator as per specifications given The task

consists of six sub-tasks

21 Safety selection and use of hand and power tools

22 Selection and use of electronic test equipment and computer aided program

23 Identification of components and materials

24 Soldering and layout of components

25 Workmanship of the completed task

26 Understanding of DC and AC circuit

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 3

3 Instructions for the task

SUB-TASK 1

Safety selection and use of hand power tools

The planning stage will be assessed and be part of the ISAT marks

Select the tools that you will need to perform this task Test the power machines for safety

and check the extension cord if it is save to use While you are working keep your

surroundings clean and do not waste material unnecessarily Use safety equipments only

is it is necessary After you have completed your task clean-up and pack away all tools

and equipments that you have used

SUB-TASK 2

Selection and use of electronic test equipment and computer aided program

Use the component catalogue and identify the five legs to be used Place the OPAMP

correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits

between the two sides of the IC Make use of a computer aided program to draw the circuit

and test the circuit to determine whether it will operate Transfer this drawing to the

attached diagram sheet

SUB-TASK 3

Identification of components and material

Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the

legs of the components to suit the holes in the Vero board Make sure that the

components are installed in such a way that you can solder the legs of the components to

the board

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

SUB-TASK 4

Soldering and layout of components

Do not use too much solder when you solder the components to the board Put the tip of

the soldering iron to both the component and the Vero board to ensure enough heat on

both This will ensure that no hot connections occur Do not keep the soldering iron too

long at one place on the board it will over heat and the conductor will part from the board

After you have soldered cut the access of the legs of the components short and make

your project tidy

SUB-TASK 5

Workmanship of the completed task

Check for loose connection on the soldering of the components Cut of excess legs of the

components Insert the IC correctly in the IC holder Insert and connect the battery in the

holder Test the a-stable multi vibrator by switching on the toggle switch after you have

put in the battery The two LEDs will light up one after the other

SUB-TASK 6

Understanding of DC and AC Circuit

After switching the power on and the OPAMP operates take it to the assessor for

assessment If the OPAMP does not operate apply fault finding techniques and solve the

problem

Refer to the attached Data Sheet all the time

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

CIRCUIT DIAGRAM

FIGURE 1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

PHYSICAL LAYOUT OF PROJECT

FIGURE 2

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET

Page 5: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

Power tools (Drilling

Machine)

Drill Bits

Sucker Solder or

Solda wick

Stanley Knife

Computer with

printer

Computer program

Crocodile Clips

Component

catalogue

Helping Hands

1

1

1

1

1

1

1

1

1

5 Assessment

The following assessment tools are provided in Section 3 for the full conduct of the

assessment of the ISAT

Sub-tasks 1 - 6 Rubric

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

SECTION 2 INSTRUCTIONS TO LECTURERS

1

2

3

4

5

6

7

8

9

10

11

12

13

Study the ISAT task described in SECTION 1

INSTRUCTIONS TO STUDENTS and ASSESSMENT TOOLS must be given to

each student and sufficiently in advance for preparation and fulfilment of the ISAT

task

This ISAT task is an individual task and no help from any person outside is

allowed

All the equipment of this ISAT must be given to the student

Carefully note the requirements of the Assessment Tools provided in SECTION 3

All arrangements for ordering of consumables preparation of workshops and

simulation areas staff deployment added facilities and requirements record

sheets answer sheets etc must be made in advance to ensure the successful

conduct of the ISAT

Student performance in the ISAT must conclude with a record of the studentrsquos

performance as provided in SECTION 4

Ensure that the student understands the assessment criteria

Ensure that the student understands the competence descriptors of the

assessment rubrics (attached)

The ISAT assesses the various skills attained in the three vocational subjects

Each lecturer is to ensure that during the year students have sufficient practice to

master the skills and knowledge required to complete the ISAT

A judgement of competent or higher will only be achieved if the studentrsquos project

is functional

The lecturer must assess the project in stages as indicated in Instructions to

students to ensure that valid and authentic assessment that measures the skills

knowledge attitude and values (SKAV) required by the task takes place

The ISAT forms part of the studentrsquos promotional mark and therefore must be

conducted under examination conditions in a simulated or structured environment

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

SECTION 3 ASSESSMENT TOOLS SUB-TASK 1 Safety selection and use of hand and power tools

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Use of safety equipment

The correct use of safety equipment is demonstrated in all applications (4 marks)

The correct use of safety equipment is demonstrated in most applications (3 marks)

The correct use of safety equipment is demonstrated with short comings in some applications (2 marks)

Little or no correct use of safety equipment is demonstrated (0-1 mark)

Housekeeping

Demonstrates excellent housekeeping during and after task (4 marks)

Demonstrates good housekeeping after completion of task (3 marks)

Demonstrates acceptable level of housekeeping after completion of task (2 marks)

Demonstrate poor housekeeping during and after task (0-1 mark)

Use of hand and power tools

Demonstrates the correct use of hand tools in all applications (4 marks)

Demonstrates the correct use of hand tools in most applications (3 marks)

Demonstrates the correct use of hand tools in some applications (2 marks)

Demonstrates the incorrect use of hand tools (0-1 mark)

SUB-TOTAL 12

SUB-TASK 2 Selection and use of electronic test equipment and computer-aided program

Selection of test equipment

Selects all testing equipment as per task requirement correctly (5 marks)

Selects most of the essential testing equipment as per task requirement correctly (3 marks)

Selects some of the essential testing equipment requirement correctly (2 marks)

Select few or no essential testing equipment correctly (0-1 mark)

Use of test equipment

Demonstrates the correct use of all test equipments in all applications (5 marks)

Demonstrates the correct use of test equipment in most applications (3 marks)

Demonstrates the correct use of test equipment in some applications (2 marks)

Demonstrate the incorrect use of test equipment in all applications (0-1 mark)

Selection of scales in a range during testing

Demonstrate to select different scales during testing of all components (5 marks)

Demonstrate to select different scales during testing of most of the components (3 Marks)

Demonstrate to select different scales during testing of some of the components (2 Marks)

Demonstrate to select no scales during testing of the components (0-1 Marks)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Correct interpretation of meter readings

Demonstrate to interpret all the readings observed correct (5 Marks)

Demonstrate to interpret most the readings observed correct (3 Marks)

Demonstrate to interpret some the readings observed correct (2 Marks)

Demonstrate to interpret none of the readings observed correct (0-1 Marks)

Reproducing of circuit electronically

Demonstrate the ability to redraw the circuit completely electronically (5 marks)

Demonstrate the ability to redraw the circuit electronically (3 marks)

Demonstrate the ability to redraw part of the circuit completely electronically (2 marks)

Demonstrate the ability to redraw no circuit electronically (0-1 marks)

Testing of the circuit electronically

Demonstrate the ability that the circuit operates in full (5 marks)

Demonstrate the ability that the circuit operates (3 marks)

Demonstrate the ability that some part of the circuit operates (2 marks)

Demonstrate the ability that the circuit does not operates (0-1 marks)

Use of computerised program

Demonstrate the ability to use the program correctly (5 marks)

Demonstrate the ability to use the program (3 marks)

Show some ability to use the program (2 marks)

Little or no correct use of the program (0-1 mark)

Testing of operation of circuit

Demonstrates that the circuit operates with first test (5 marks)

Demonstrates that the circuit operates (3 marks)

Demonstrates that the circuit does not operates (2 marks)

Demonstrates no ability to test for correctness of circuit (0-1 mark)

SUB-TOTAL 40

SUB-TASK 3 Identification of components and materials

Identification of components according to circuit diagram layout

Identifies all components correctly according to circuit diagram layout (4 marks)

Identifies most of the components correctly according to circuit diagram layout (3 marks)

Identifies some of the components correctly according to circuit diagram layout (2 marks)

Identifies few or no components correctly (0-1 mark)

Selection of size and type of solder

Selects the correct size and type of solder every time (4 marks)

Selects the correct size and type of solder most of the time (3 marks)

Selects the correct size and type of solder some of the time (2 marks)

Selects few or no correct size and type of solder (0-1 mark)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 9

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Can interpret values on components

Can read and understand the printed information on all components (4 marks)

Can read and understand the printed information on most of the components (3 marks)

Can read and understand the printed information on some of the components (2 marks)

Can read and understand the printed information on any components (0-1 marks)

Can produce values of components by colour coding

Can determine the value of all the components by their colour coding (4 marks)

Can determine the value of most of the components by their colour coding (3 marks)

Can determine the value of some of the components by their colour coding (2 marks)

Can determine no value of all the components by their colour coding (0-1 marks)

Can interpret information in component catalogue

Can look up and interpret all the components in a catalogue (4 marks)

Can look up and interpret most of the components in a catalogue (3 marks)

Can look up and interpret some of the components in a catalogue (2 marks)

Canrsquot look up and interpret any components in a catalogue (0-1 marks)

SUB-TOTAL 20

SUB-TASK 4 Soldering and Layout of components

Arrangement of components on Planning Sheet and Vero board

Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)

Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)

Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)

Demonstrates a poor arrangement of components (0-1 mark)

Checking of polarity of components

Checks the polarity of all components (4 marks)

Checks the polarity of most components (3 marks)

Checks the polarity of some components (2 marks)

Checks few or no polarity of any component (0-1 mark)

Soldering Demonstrates excellent ability to solder (4 marks)

Demonstrates an adequate ability to solder (3 marks)

Student demonstrates a reasonable ability to solder (2 marks)

Student demonstrates no ability to solder (0-1 mark)

SUB-TOTAL 12

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 10

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

SUB-TASK 5 Workmanship of the completed task

Functionality of the circuit

Circuit is operational on first attempt (4 marks)

Circuit is operational on second attempt after fault finding (3 marks)

Circuit is operational on third attempt after fault finding (2 marks)

Circuit is not operational after fourth attempt (0-1 mark)

Workmanship

Shows excellent workmanship in all specifications of task (4 marks)

Shows high level of competence on workmanship in all specifications of the task (3 marks)

Shows acceptable level of workmanship in some of the specifications of the task (2 marks)

Shows poor workmanship in most of the specifications of the task (0-1 mark)

SUB-TOTAL 8

SUB-TASK 6 Understanding of DC and AC circuits

Interpretation and analysis of circuit diagram

Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)

Demonstrates a good interpretation and analysis of circuit diagram (3 marks)

Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)

Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)

Testing and fault finding

Demonstrates excellent ability to test and find faults of the task (4 marks)

Demonstrates high level of ability to test and find faults of the task (3 marks)

Demonstrates some ability to test and find faults of the task (2 marks)

Demonstrates little or no ability to test and find faults of the task (0-1 mark)

SUB-TOTAL 8

TOTAL 100

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 11

SECTION 4 RECORD OF PERFORMANCE

INTEGRATED SUMMATIVE ASSESSMENT TASK

College

Campus

Studentrsquos Surname and First Names

Studentrsquos ID Number

Lecturerrsquos Surname and Initials

Date of conclusion of assessment

ASSESSMENT GRID

TASKS MARK ALLOCATION

STUDENTrsquoS MARK

Sub-Task 1 Safety selection and use of hand and power tools

12

Sub-Task 2 Selection and use of electronic test equipment and computer-aided program

40

Sub-Task 3 Identification of components and materials

20

Sub-Task 4 Soldering and layout of components

12

Sub-Task 5 Workmanship of the completed task

8

Sub-Task 6 Understanding of DC and AC Circuit

8

TOTAL 100

ISAT MARK AS A PERCENTAGE

COMPETENCE LEVEL INDICATORS

5-Point Achievement Rating Scale

5 (80-100)

4 (70-79)

3 (50-69)

2 (40-49)

1 (0-39)

Competency Level Indicators

Rating Code Rating Marks

5 Outstanding 80 ndash 100

4 Highly Competent 70 ndash79

3 Competent 50 ndash 69

2 Not Yet Competent 40 ndash49

1 Not Achieved 0 ndash 39

Studentrsquos competence level

Studentrsquos signature

Lecturerrsquos signature

Date

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over

NATIONAL CERTIFICATE (VOCATIONAL)

NQF LEVEL 2

INTEGRATED SUMMATIVE ASSESSMENT TASK

PROGRAMME

ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION

2010 ndash 2012

This document consists of 8 pages

INSTRUCTIONS TO STUDENTS

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 2

INSTRUCTIONS TO STUDENTS

This practical application task tests the studentrsquos ability to apply the knowledge and skills

acquired in the Electrical Infrastructure and Construction level 2 The work required of the

student in this Integrated Summative Assessment Task (ISAT) is an important and

compulsory component of the studies

1 You are required to

11

12

13

14

15

16

Study the task carefully

Note the time allocations per task

Note the submission dates

Pay careful attention to the mark allocated per section and the total

Study the resources required

Note the elements of the Assessment Tool that will be used to evaluate your

performance in each sub-task This is to ensure that you prepare sufficiently for

the conduct of the ISAT

2 Description of the task

The student must construct a-stable multi vibrator as per specifications given The task

consists of six sub-tasks

21 Safety selection and use of hand and power tools

22 Selection and use of electronic test equipment and computer aided program

23 Identification of components and materials

24 Soldering and layout of components

25 Workmanship of the completed task

26 Understanding of DC and AC circuit

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 3

3 Instructions for the task

SUB-TASK 1

Safety selection and use of hand power tools

The planning stage will be assessed and be part of the ISAT marks

Select the tools that you will need to perform this task Test the power machines for safety

and check the extension cord if it is save to use While you are working keep your

surroundings clean and do not waste material unnecessarily Use safety equipments only

is it is necessary After you have completed your task clean-up and pack away all tools

and equipments that you have used

SUB-TASK 2

Selection and use of electronic test equipment and computer aided program

Use the component catalogue and identify the five legs to be used Place the OPAMP

correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits

between the two sides of the IC Make use of a computer aided program to draw the circuit

and test the circuit to determine whether it will operate Transfer this drawing to the

attached diagram sheet

SUB-TASK 3

Identification of components and material

Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the

legs of the components to suit the holes in the Vero board Make sure that the

components are installed in such a way that you can solder the legs of the components to

the board

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

SUB-TASK 4

Soldering and layout of components

Do not use too much solder when you solder the components to the board Put the tip of

the soldering iron to both the component and the Vero board to ensure enough heat on

both This will ensure that no hot connections occur Do not keep the soldering iron too

long at one place on the board it will over heat and the conductor will part from the board

After you have soldered cut the access of the legs of the components short and make

your project tidy

SUB-TASK 5

Workmanship of the completed task

Check for loose connection on the soldering of the components Cut of excess legs of the

components Insert the IC correctly in the IC holder Insert and connect the battery in the

holder Test the a-stable multi vibrator by switching on the toggle switch after you have

put in the battery The two LEDs will light up one after the other

SUB-TASK 6

Understanding of DC and AC Circuit

After switching the power on and the OPAMP operates take it to the assessor for

assessment If the OPAMP does not operate apply fault finding techniques and solve the

problem

Refer to the attached Data Sheet all the time

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

CIRCUIT DIAGRAM

FIGURE 1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

PHYSICAL LAYOUT OF PROJECT

FIGURE 2

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET

Page 6: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

SECTION 2 INSTRUCTIONS TO LECTURERS

1

2

3

4

5

6

7

8

9

10

11

12

13

Study the ISAT task described in SECTION 1

INSTRUCTIONS TO STUDENTS and ASSESSMENT TOOLS must be given to

each student and sufficiently in advance for preparation and fulfilment of the ISAT

task

This ISAT task is an individual task and no help from any person outside is

allowed

All the equipment of this ISAT must be given to the student

Carefully note the requirements of the Assessment Tools provided in SECTION 3

All arrangements for ordering of consumables preparation of workshops and

simulation areas staff deployment added facilities and requirements record

sheets answer sheets etc must be made in advance to ensure the successful

conduct of the ISAT

Student performance in the ISAT must conclude with a record of the studentrsquos

performance as provided in SECTION 4

Ensure that the student understands the assessment criteria

Ensure that the student understands the competence descriptors of the

assessment rubrics (attached)

The ISAT assesses the various skills attained in the three vocational subjects

Each lecturer is to ensure that during the year students have sufficient practice to

master the skills and knowledge required to complete the ISAT

A judgement of competent or higher will only be achieved if the studentrsquos project

is functional

The lecturer must assess the project in stages as indicated in Instructions to

students to ensure that valid and authentic assessment that measures the skills

knowledge attitude and values (SKAV) required by the task takes place

The ISAT forms part of the studentrsquos promotional mark and therefore must be

conducted under examination conditions in a simulated or structured environment

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

SECTION 3 ASSESSMENT TOOLS SUB-TASK 1 Safety selection and use of hand and power tools

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Use of safety equipment

The correct use of safety equipment is demonstrated in all applications (4 marks)

The correct use of safety equipment is demonstrated in most applications (3 marks)

The correct use of safety equipment is demonstrated with short comings in some applications (2 marks)

Little or no correct use of safety equipment is demonstrated (0-1 mark)

Housekeeping

Demonstrates excellent housekeeping during and after task (4 marks)

Demonstrates good housekeeping after completion of task (3 marks)

Demonstrates acceptable level of housekeeping after completion of task (2 marks)

Demonstrate poor housekeeping during and after task (0-1 mark)

Use of hand and power tools

Demonstrates the correct use of hand tools in all applications (4 marks)

Demonstrates the correct use of hand tools in most applications (3 marks)

Demonstrates the correct use of hand tools in some applications (2 marks)

Demonstrates the incorrect use of hand tools (0-1 mark)

SUB-TOTAL 12

SUB-TASK 2 Selection and use of electronic test equipment and computer-aided program

Selection of test equipment

Selects all testing equipment as per task requirement correctly (5 marks)

Selects most of the essential testing equipment as per task requirement correctly (3 marks)

Selects some of the essential testing equipment requirement correctly (2 marks)

Select few or no essential testing equipment correctly (0-1 mark)

Use of test equipment

Demonstrates the correct use of all test equipments in all applications (5 marks)

Demonstrates the correct use of test equipment in most applications (3 marks)

Demonstrates the correct use of test equipment in some applications (2 marks)

Demonstrate the incorrect use of test equipment in all applications (0-1 mark)

Selection of scales in a range during testing

Demonstrate to select different scales during testing of all components (5 marks)

Demonstrate to select different scales during testing of most of the components (3 Marks)

Demonstrate to select different scales during testing of some of the components (2 Marks)

Demonstrate to select no scales during testing of the components (0-1 Marks)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Correct interpretation of meter readings

Demonstrate to interpret all the readings observed correct (5 Marks)

Demonstrate to interpret most the readings observed correct (3 Marks)

Demonstrate to interpret some the readings observed correct (2 Marks)

Demonstrate to interpret none of the readings observed correct (0-1 Marks)

Reproducing of circuit electronically

Demonstrate the ability to redraw the circuit completely electronically (5 marks)

Demonstrate the ability to redraw the circuit electronically (3 marks)

Demonstrate the ability to redraw part of the circuit completely electronically (2 marks)

Demonstrate the ability to redraw no circuit electronically (0-1 marks)

Testing of the circuit electronically

Demonstrate the ability that the circuit operates in full (5 marks)

Demonstrate the ability that the circuit operates (3 marks)

Demonstrate the ability that some part of the circuit operates (2 marks)

Demonstrate the ability that the circuit does not operates (0-1 marks)

Use of computerised program

Demonstrate the ability to use the program correctly (5 marks)

Demonstrate the ability to use the program (3 marks)

Show some ability to use the program (2 marks)

Little or no correct use of the program (0-1 mark)

Testing of operation of circuit

Demonstrates that the circuit operates with first test (5 marks)

Demonstrates that the circuit operates (3 marks)

Demonstrates that the circuit does not operates (2 marks)

Demonstrates no ability to test for correctness of circuit (0-1 mark)

SUB-TOTAL 40

SUB-TASK 3 Identification of components and materials

Identification of components according to circuit diagram layout

Identifies all components correctly according to circuit diagram layout (4 marks)

Identifies most of the components correctly according to circuit diagram layout (3 marks)

Identifies some of the components correctly according to circuit diagram layout (2 marks)

Identifies few or no components correctly (0-1 mark)

Selection of size and type of solder

Selects the correct size and type of solder every time (4 marks)

Selects the correct size and type of solder most of the time (3 marks)

Selects the correct size and type of solder some of the time (2 marks)

Selects few or no correct size and type of solder (0-1 mark)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 9

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Can interpret values on components

Can read and understand the printed information on all components (4 marks)

Can read and understand the printed information on most of the components (3 marks)

Can read and understand the printed information on some of the components (2 marks)

Can read and understand the printed information on any components (0-1 marks)

Can produce values of components by colour coding

Can determine the value of all the components by their colour coding (4 marks)

Can determine the value of most of the components by their colour coding (3 marks)

Can determine the value of some of the components by their colour coding (2 marks)

Can determine no value of all the components by their colour coding (0-1 marks)

Can interpret information in component catalogue

Can look up and interpret all the components in a catalogue (4 marks)

Can look up and interpret most of the components in a catalogue (3 marks)

Can look up and interpret some of the components in a catalogue (2 marks)

Canrsquot look up and interpret any components in a catalogue (0-1 marks)

SUB-TOTAL 20

SUB-TASK 4 Soldering and Layout of components

Arrangement of components on Planning Sheet and Vero board

Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)

Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)

Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)

Demonstrates a poor arrangement of components (0-1 mark)

Checking of polarity of components

Checks the polarity of all components (4 marks)

Checks the polarity of most components (3 marks)

Checks the polarity of some components (2 marks)

Checks few or no polarity of any component (0-1 mark)

Soldering Demonstrates excellent ability to solder (4 marks)

Demonstrates an adequate ability to solder (3 marks)

Student demonstrates a reasonable ability to solder (2 marks)

Student demonstrates no ability to solder (0-1 mark)

SUB-TOTAL 12

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 10

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

SUB-TASK 5 Workmanship of the completed task

Functionality of the circuit

Circuit is operational on first attempt (4 marks)

Circuit is operational on second attempt after fault finding (3 marks)

Circuit is operational on third attempt after fault finding (2 marks)

Circuit is not operational after fourth attempt (0-1 mark)

Workmanship

Shows excellent workmanship in all specifications of task (4 marks)

Shows high level of competence on workmanship in all specifications of the task (3 marks)

Shows acceptable level of workmanship in some of the specifications of the task (2 marks)

Shows poor workmanship in most of the specifications of the task (0-1 mark)

SUB-TOTAL 8

SUB-TASK 6 Understanding of DC and AC circuits

Interpretation and analysis of circuit diagram

Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)

Demonstrates a good interpretation and analysis of circuit diagram (3 marks)

Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)

Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)

Testing and fault finding

Demonstrates excellent ability to test and find faults of the task (4 marks)

Demonstrates high level of ability to test and find faults of the task (3 marks)

Demonstrates some ability to test and find faults of the task (2 marks)

Demonstrates little or no ability to test and find faults of the task (0-1 mark)

SUB-TOTAL 8

TOTAL 100

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 11

SECTION 4 RECORD OF PERFORMANCE

INTEGRATED SUMMATIVE ASSESSMENT TASK

College

Campus

Studentrsquos Surname and First Names

Studentrsquos ID Number

Lecturerrsquos Surname and Initials

Date of conclusion of assessment

ASSESSMENT GRID

TASKS MARK ALLOCATION

STUDENTrsquoS MARK

Sub-Task 1 Safety selection and use of hand and power tools

12

Sub-Task 2 Selection and use of electronic test equipment and computer-aided program

40

Sub-Task 3 Identification of components and materials

20

Sub-Task 4 Soldering and layout of components

12

Sub-Task 5 Workmanship of the completed task

8

Sub-Task 6 Understanding of DC and AC Circuit

8

TOTAL 100

ISAT MARK AS A PERCENTAGE

COMPETENCE LEVEL INDICATORS

5-Point Achievement Rating Scale

5 (80-100)

4 (70-79)

3 (50-69)

2 (40-49)

1 (0-39)

Competency Level Indicators

Rating Code Rating Marks

5 Outstanding 80 ndash 100

4 Highly Competent 70 ndash79

3 Competent 50 ndash 69

2 Not Yet Competent 40 ndash49

1 Not Achieved 0 ndash 39

Studentrsquos competence level

Studentrsquos signature

Lecturerrsquos signature

Date

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over

NATIONAL CERTIFICATE (VOCATIONAL)

NQF LEVEL 2

INTEGRATED SUMMATIVE ASSESSMENT TASK

PROGRAMME

ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION

2010 ndash 2012

This document consists of 8 pages

INSTRUCTIONS TO STUDENTS

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 2

INSTRUCTIONS TO STUDENTS

This practical application task tests the studentrsquos ability to apply the knowledge and skills

acquired in the Electrical Infrastructure and Construction level 2 The work required of the

student in this Integrated Summative Assessment Task (ISAT) is an important and

compulsory component of the studies

1 You are required to

11

12

13

14

15

16

Study the task carefully

Note the time allocations per task

Note the submission dates

Pay careful attention to the mark allocated per section and the total

Study the resources required

Note the elements of the Assessment Tool that will be used to evaluate your

performance in each sub-task This is to ensure that you prepare sufficiently for

the conduct of the ISAT

2 Description of the task

The student must construct a-stable multi vibrator as per specifications given The task

consists of six sub-tasks

21 Safety selection and use of hand and power tools

22 Selection and use of electronic test equipment and computer aided program

23 Identification of components and materials

24 Soldering and layout of components

25 Workmanship of the completed task

26 Understanding of DC and AC circuit

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 3

3 Instructions for the task

SUB-TASK 1

Safety selection and use of hand power tools

The planning stage will be assessed and be part of the ISAT marks

Select the tools that you will need to perform this task Test the power machines for safety

and check the extension cord if it is save to use While you are working keep your

surroundings clean and do not waste material unnecessarily Use safety equipments only

is it is necessary After you have completed your task clean-up and pack away all tools

and equipments that you have used

SUB-TASK 2

Selection and use of electronic test equipment and computer aided program

Use the component catalogue and identify the five legs to be used Place the OPAMP

correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits

between the two sides of the IC Make use of a computer aided program to draw the circuit

and test the circuit to determine whether it will operate Transfer this drawing to the

attached diagram sheet

SUB-TASK 3

Identification of components and material

Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the

legs of the components to suit the holes in the Vero board Make sure that the

components are installed in such a way that you can solder the legs of the components to

the board

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

SUB-TASK 4

Soldering and layout of components

Do not use too much solder when you solder the components to the board Put the tip of

the soldering iron to both the component and the Vero board to ensure enough heat on

both This will ensure that no hot connections occur Do not keep the soldering iron too

long at one place on the board it will over heat and the conductor will part from the board

After you have soldered cut the access of the legs of the components short and make

your project tidy

SUB-TASK 5

Workmanship of the completed task

Check for loose connection on the soldering of the components Cut of excess legs of the

components Insert the IC correctly in the IC holder Insert and connect the battery in the

holder Test the a-stable multi vibrator by switching on the toggle switch after you have

put in the battery The two LEDs will light up one after the other

SUB-TASK 6

Understanding of DC and AC Circuit

After switching the power on and the OPAMP operates take it to the assessor for

assessment If the OPAMP does not operate apply fault finding techniques and solve the

problem

Refer to the attached Data Sheet all the time

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

CIRCUIT DIAGRAM

FIGURE 1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

PHYSICAL LAYOUT OF PROJECT

FIGURE 2

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET

Page 7: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

SECTION 3 ASSESSMENT TOOLS SUB-TASK 1 Safety selection and use of hand and power tools

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Use of safety equipment

The correct use of safety equipment is demonstrated in all applications (4 marks)

The correct use of safety equipment is demonstrated in most applications (3 marks)

The correct use of safety equipment is demonstrated with short comings in some applications (2 marks)

Little or no correct use of safety equipment is demonstrated (0-1 mark)

Housekeeping

Demonstrates excellent housekeeping during and after task (4 marks)

Demonstrates good housekeeping after completion of task (3 marks)

Demonstrates acceptable level of housekeeping after completion of task (2 marks)

Demonstrate poor housekeeping during and after task (0-1 mark)

Use of hand and power tools

Demonstrates the correct use of hand tools in all applications (4 marks)

Demonstrates the correct use of hand tools in most applications (3 marks)

Demonstrates the correct use of hand tools in some applications (2 marks)

Demonstrates the incorrect use of hand tools (0-1 mark)

SUB-TOTAL 12

SUB-TASK 2 Selection and use of electronic test equipment and computer-aided program

Selection of test equipment

Selects all testing equipment as per task requirement correctly (5 marks)

Selects most of the essential testing equipment as per task requirement correctly (3 marks)

Selects some of the essential testing equipment requirement correctly (2 marks)

Select few or no essential testing equipment correctly (0-1 mark)

Use of test equipment

Demonstrates the correct use of all test equipments in all applications (5 marks)

Demonstrates the correct use of test equipment in most applications (3 marks)

Demonstrates the correct use of test equipment in some applications (2 marks)

Demonstrate the incorrect use of test equipment in all applications (0-1 mark)

Selection of scales in a range during testing

Demonstrate to select different scales during testing of all components (5 marks)

Demonstrate to select different scales during testing of most of the components (3 Marks)

Demonstrate to select different scales during testing of some of the components (2 Marks)

Demonstrate to select no scales during testing of the components (0-1 Marks)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Correct interpretation of meter readings

Demonstrate to interpret all the readings observed correct (5 Marks)

Demonstrate to interpret most the readings observed correct (3 Marks)

Demonstrate to interpret some the readings observed correct (2 Marks)

Demonstrate to interpret none of the readings observed correct (0-1 Marks)

Reproducing of circuit electronically

Demonstrate the ability to redraw the circuit completely electronically (5 marks)

Demonstrate the ability to redraw the circuit electronically (3 marks)

Demonstrate the ability to redraw part of the circuit completely electronically (2 marks)

Demonstrate the ability to redraw no circuit electronically (0-1 marks)

Testing of the circuit electronically

Demonstrate the ability that the circuit operates in full (5 marks)

Demonstrate the ability that the circuit operates (3 marks)

Demonstrate the ability that some part of the circuit operates (2 marks)

Demonstrate the ability that the circuit does not operates (0-1 marks)

Use of computerised program

Demonstrate the ability to use the program correctly (5 marks)

Demonstrate the ability to use the program (3 marks)

Show some ability to use the program (2 marks)

Little or no correct use of the program (0-1 mark)

Testing of operation of circuit

Demonstrates that the circuit operates with first test (5 marks)

Demonstrates that the circuit operates (3 marks)

Demonstrates that the circuit does not operates (2 marks)

Demonstrates no ability to test for correctness of circuit (0-1 mark)

SUB-TOTAL 40

SUB-TASK 3 Identification of components and materials

Identification of components according to circuit diagram layout

Identifies all components correctly according to circuit diagram layout (4 marks)

Identifies most of the components correctly according to circuit diagram layout (3 marks)

Identifies some of the components correctly according to circuit diagram layout (2 marks)

Identifies few or no components correctly (0-1 mark)

Selection of size and type of solder

Selects the correct size and type of solder every time (4 marks)

Selects the correct size and type of solder most of the time (3 marks)

Selects the correct size and type of solder some of the time (2 marks)

Selects few or no correct size and type of solder (0-1 mark)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 9

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Can interpret values on components

Can read and understand the printed information on all components (4 marks)

Can read and understand the printed information on most of the components (3 marks)

Can read and understand the printed information on some of the components (2 marks)

Can read and understand the printed information on any components (0-1 marks)

Can produce values of components by colour coding

Can determine the value of all the components by their colour coding (4 marks)

Can determine the value of most of the components by their colour coding (3 marks)

Can determine the value of some of the components by their colour coding (2 marks)

Can determine no value of all the components by their colour coding (0-1 marks)

Can interpret information in component catalogue

Can look up and interpret all the components in a catalogue (4 marks)

Can look up and interpret most of the components in a catalogue (3 marks)

Can look up and interpret some of the components in a catalogue (2 marks)

Canrsquot look up and interpret any components in a catalogue (0-1 marks)

SUB-TOTAL 20

SUB-TASK 4 Soldering and Layout of components

Arrangement of components on Planning Sheet and Vero board

Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)

Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)

Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)

Demonstrates a poor arrangement of components (0-1 mark)

Checking of polarity of components

Checks the polarity of all components (4 marks)

Checks the polarity of most components (3 marks)

Checks the polarity of some components (2 marks)

Checks few or no polarity of any component (0-1 mark)

Soldering Demonstrates excellent ability to solder (4 marks)

Demonstrates an adequate ability to solder (3 marks)

Student demonstrates a reasonable ability to solder (2 marks)

Student demonstrates no ability to solder (0-1 mark)

SUB-TOTAL 12

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 10

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

SUB-TASK 5 Workmanship of the completed task

Functionality of the circuit

Circuit is operational on first attempt (4 marks)

Circuit is operational on second attempt after fault finding (3 marks)

Circuit is operational on third attempt after fault finding (2 marks)

Circuit is not operational after fourth attempt (0-1 mark)

Workmanship

Shows excellent workmanship in all specifications of task (4 marks)

Shows high level of competence on workmanship in all specifications of the task (3 marks)

Shows acceptable level of workmanship in some of the specifications of the task (2 marks)

Shows poor workmanship in most of the specifications of the task (0-1 mark)

SUB-TOTAL 8

SUB-TASK 6 Understanding of DC and AC circuits

Interpretation and analysis of circuit diagram

Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)

Demonstrates a good interpretation and analysis of circuit diagram (3 marks)

Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)

Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)

Testing and fault finding

Demonstrates excellent ability to test and find faults of the task (4 marks)

Demonstrates high level of ability to test and find faults of the task (3 marks)

Demonstrates some ability to test and find faults of the task (2 marks)

Demonstrates little or no ability to test and find faults of the task (0-1 mark)

SUB-TOTAL 8

TOTAL 100

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 11

SECTION 4 RECORD OF PERFORMANCE

INTEGRATED SUMMATIVE ASSESSMENT TASK

College

Campus

Studentrsquos Surname and First Names

Studentrsquos ID Number

Lecturerrsquos Surname and Initials

Date of conclusion of assessment

ASSESSMENT GRID

TASKS MARK ALLOCATION

STUDENTrsquoS MARK

Sub-Task 1 Safety selection and use of hand and power tools

12

Sub-Task 2 Selection and use of electronic test equipment and computer-aided program

40

Sub-Task 3 Identification of components and materials

20

Sub-Task 4 Soldering and layout of components

12

Sub-Task 5 Workmanship of the completed task

8

Sub-Task 6 Understanding of DC and AC Circuit

8

TOTAL 100

ISAT MARK AS A PERCENTAGE

COMPETENCE LEVEL INDICATORS

5-Point Achievement Rating Scale

5 (80-100)

4 (70-79)

3 (50-69)

2 (40-49)

1 (0-39)

Competency Level Indicators

Rating Code Rating Marks

5 Outstanding 80 ndash 100

4 Highly Competent 70 ndash79

3 Competent 50 ndash 69

2 Not Yet Competent 40 ndash49

1 Not Achieved 0 ndash 39

Studentrsquos competence level

Studentrsquos signature

Lecturerrsquos signature

Date

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over

NATIONAL CERTIFICATE (VOCATIONAL)

NQF LEVEL 2

INTEGRATED SUMMATIVE ASSESSMENT TASK

PROGRAMME

ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION

2010 ndash 2012

This document consists of 8 pages

INSTRUCTIONS TO STUDENTS

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 2

INSTRUCTIONS TO STUDENTS

This practical application task tests the studentrsquos ability to apply the knowledge and skills

acquired in the Electrical Infrastructure and Construction level 2 The work required of the

student in this Integrated Summative Assessment Task (ISAT) is an important and

compulsory component of the studies

1 You are required to

11

12

13

14

15

16

Study the task carefully

Note the time allocations per task

Note the submission dates

Pay careful attention to the mark allocated per section and the total

Study the resources required

Note the elements of the Assessment Tool that will be used to evaluate your

performance in each sub-task This is to ensure that you prepare sufficiently for

the conduct of the ISAT

2 Description of the task

The student must construct a-stable multi vibrator as per specifications given The task

consists of six sub-tasks

21 Safety selection and use of hand and power tools

22 Selection and use of electronic test equipment and computer aided program

23 Identification of components and materials

24 Soldering and layout of components

25 Workmanship of the completed task

26 Understanding of DC and AC circuit

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 3

3 Instructions for the task

SUB-TASK 1

Safety selection and use of hand power tools

The planning stage will be assessed and be part of the ISAT marks

Select the tools that you will need to perform this task Test the power machines for safety

and check the extension cord if it is save to use While you are working keep your

surroundings clean and do not waste material unnecessarily Use safety equipments only

is it is necessary After you have completed your task clean-up and pack away all tools

and equipments that you have used

SUB-TASK 2

Selection and use of electronic test equipment and computer aided program

Use the component catalogue and identify the five legs to be used Place the OPAMP

correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits

between the two sides of the IC Make use of a computer aided program to draw the circuit

and test the circuit to determine whether it will operate Transfer this drawing to the

attached diagram sheet

SUB-TASK 3

Identification of components and material

Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the

legs of the components to suit the holes in the Vero board Make sure that the

components are installed in such a way that you can solder the legs of the components to

the board

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

SUB-TASK 4

Soldering and layout of components

Do not use too much solder when you solder the components to the board Put the tip of

the soldering iron to both the component and the Vero board to ensure enough heat on

both This will ensure that no hot connections occur Do not keep the soldering iron too

long at one place on the board it will over heat and the conductor will part from the board

After you have soldered cut the access of the legs of the components short and make

your project tidy

SUB-TASK 5

Workmanship of the completed task

Check for loose connection on the soldering of the components Cut of excess legs of the

components Insert the IC correctly in the IC holder Insert and connect the battery in the

holder Test the a-stable multi vibrator by switching on the toggle switch after you have

put in the battery The two LEDs will light up one after the other

SUB-TASK 6

Understanding of DC and AC Circuit

After switching the power on and the OPAMP operates take it to the assessor for

assessment If the OPAMP does not operate apply fault finding techniques and solve the

problem

Refer to the attached Data Sheet all the time

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

CIRCUIT DIAGRAM

FIGURE 1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

PHYSICAL LAYOUT OF PROJECT

FIGURE 2

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET

Page 8: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Correct interpretation of meter readings

Demonstrate to interpret all the readings observed correct (5 Marks)

Demonstrate to interpret most the readings observed correct (3 Marks)

Demonstrate to interpret some the readings observed correct (2 Marks)

Demonstrate to interpret none of the readings observed correct (0-1 Marks)

Reproducing of circuit electronically

Demonstrate the ability to redraw the circuit completely electronically (5 marks)

Demonstrate the ability to redraw the circuit electronically (3 marks)

Demonstrate the ability to redraw part of the circuit completely electronically (2 marks)

Demonstrate the ability to redraw no circuit electronically (0-1 marks)

Testing of the circuit electronically

Demonstrate the ability that the circuit operates in full (5 marks)

Demonstrate the ability that the circuit operates (3 marks)

Demonstrate the ability that some part of the circuit operates (2 marks)

Demonstrate the ability that the circuit does not operates (0-1 marks)

Use of computerised program

Demonstrate the ability to use the program correctly (5 marks)

Demonstrate the ability to use the program (3 marks)

Show some ability to use the program (2 marks)

Little or no correct use of the program (0-1 mark)

Testing of operation of circuit

Demonstrates that the circuit operates with first test (5 marks)

Demonstrates that the circuit operates (3 marks)

Demonstrates that the circuit does not operates (2 marks)

Demonstrates no ability to test for correctness of circuit (0-1 mark)

SUB-TOTAL 40

SUB-TASK 3 Identification of components and materials

Identification of components according to circuit diagram layout

Identifies all components correctly according to circuit diagram layout (4 marks)

Identifies most of the components correctly according to circuit diagram layout (3 marks)

Identifies some of the components correctly according to circuit diagram layout (2 marks)

Identifies few or no components correctly (0-1 mark)

Selection of size and type of solder

Selects the correct size and type of solder every time (4 marks)

Selects the correct size and type of solder most of the time (3 marks)

Selects the correct size and type of solder some of the time (2 marks)

Selects few or no correct size and type of solder (0-1 mark)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 9

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Can interpret values on components

Can read and understand the printed information on all components (4 marks)

Can read and understand the printed information on most of the components (3 marks)

Can read and understand the printed information on some of the components (2 marks)

Can read and understand the printed information on any components (0-1 marks)

Can produce values of components by colour coding

Can determine the value of all the components by their colour coding (4 marks)

Can determine the value of most of the components by their colour coding (3 marks)

Can determine the value of some of the components by their colour coding (2 marks)

Can determine no value of all the components by their colour coding (0-1 marks)

Can interpret information in component catalogue

Can look up and interpret all the components in a catalogue (4 marks)

Can look up and interpret most of the components in a catalogue (3 marks)

Can look up and interpret some of the components in a catalogue (2 marks)

Canrsquot look up and interpret any components in a catalogue (0-1 marks)

SUB-TOTAL 20

SUB-TASK 4 Soldering and Layout of components

Arrangement of components on Planning Sheet and Vero board

Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)

Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)

Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)

Demonstrates a poor arrangement of components (0-1 mark)

Checking of polarity of components

Checks the polarity of all components (4 marks)

Checks the polarity of most components (3 marks)

Checks the polarity of some components (2 marks)

Checks few or no polarity of any component (0-1 mark)

Soldering Demonstrates excellent ability to solder (4 marks)

Demonstrates an adequate ability to solder (3 marks)

Student demonstrates a reasonable ability to solder (2 marks)

Student demonstrates no ability to solder (0-1 mark)

SUB-TOTAL 12

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 10

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

SUB-TASK 5 Workmanship of the completed task

Functionality of the circuit

Circuit is operational on first attempt (4 marks)

Circuit is operational on second attempt after fault finding (3 marks)

Circuit is operational on third attempt after fault finding (2 marks)

Circuit is not operational after fourth attempt (0-1 mark)

Workmanship

Shows excellent workmanship in all specifications of task (4 marks)

Shows high level of competence on workmanship in all specifications of the task (3 marks)

Shows acceptable level of workmanship in some of the specifications of the task (2 marks)

Shows poor workmanship in most of the specifications of the task (0-1 mark)

SUB-TOTAL 8

SUB-TASK 6 Understanding of DC and AC circuits

Interpretation and analysis of circuit diagram

Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)

Demonstrates a good interpretation and analysis of circuit diagram (3 marks)

Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)

Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)

Testing and fault finding

Demonstrates excellent ability to test and find faults of the task (4 marks)

Demonstrates high level of ability to test and find faults of the task (3 marks)

Demonstrates some ability to test and find faults of the task (2 marks)

Demonstrates little or no ability to test and find faults of the task (0-1 mark)

SUB-TOTAL 8

TOTAL 100

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 11

SECTION 4 RECORD OF PERFORMANCE

INTEGRATED SUMMATIVE ASSESSMENT TASK

College

Campus

Studentrsquos Surname and First Names

Studentrsquos ID Number

Lecturerrsquos Surname and Initials

Date of conclusion of assessment

ASSESSMENT GRID

TASKS MARK ALLOCATION

STUDENTrsquoS MARK

Sub-Task 1 Safety selection and use of hand and power tools

12

Sub-Task 2 Selection and use of electronic test equipment and computer-aided program

40

Sub-Task 3 Identification of components and materials

20

Sub-Task 4 Soldering and layout of components

12

Sub-Task 5 Workmanship of the completed task

8

Sub-Task 6 Understanding of DC and AC Circuit

8

TOTAL 100

ISAT MARK AS A PERCENTAGE

COMPETENCE LEVEL INDICATORS

5-Point Achievement Rating Scale

5 (80-100)

4 (70-79)

3 (50-69)

2 (40-49)

1 (0-39)

Competency Level Indicators

Rating Code Rating Marks

5 Outstanding 80 ndash 100

4 Highly Competent 70 ndash79

3 Competent 50 ndash 69

2 Not Yet Competent 40 ndash49

1 Not Achieved 0 ndash 39

Studentrsquos competence level

Studentrsquos signature

Lecturerrsquos signature

Date

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over

NATIONAL CERTIFICATE (VOCATIONAL)

NQF LEVEL 2

INTEGRATED SUMMATIVE ASSESSMENT TASK

PROGRAMME

ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION

2010 ndash 2012

This document consists of 8 pages

INSTRUCTIONS TO STUDENTS

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 2

INSTRUCTIONS TO STUDENTS

This practical application task tests the studentrsquos ability to apply the knowledge and skills

acquired in the Electrical Infrastructure and Construction level 2 The work required of the

student in this Integrated Summative Assessment Task (ISAT) is an important and

compulsory component of the studies

1 You are required to

11

12

13

14

15

16

Study the task carefully

Note the time allocations per task

Note the submission dates

Pay careful attention to the mark allocated per section and the total

Study the resources required

Note the elements of the Assessment Tool that will be used to evaluate your

performance in each sub-task This is to ensure that you prepare sufficiently for

the conduct of the ISAT

2 Description of the task

The student must construct a-stable multi vibrator as per specifications given The task

consists of six sub-tasks

21 Safety selection and use of hand and power tools

22 Selection and use of electronic test equipment and computer aided program

23 Identification of components and materials

24 Soldering and layout of components

25 Workmanship of the completed task

26 Understanding of DC and AC circuit

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 3

3 Instructions for the task

SUB-TASK 1

Safety selection and use of hand power tools

The planning stage will be assessed and be part of the ISAT marks

Select the tools that you will need to perform this task Test the power machines for safety

and check the extension cord if it is save to use While you are working keep your

surroundings clean and do not waste material unnecessarily Use safety equipments only

is it is necessary After you have completed your task clean-up and pack away all tools

and equipments that you have used

SUB-TASK 2

Selection and use of electronic test equipment and computer aided program

Use the component catalogue and identify the five legs to be used Place the OPAMP

correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits

between the two sides of the IC Make use of a computer aided program to draw the circuit

and test the circuit to determine whether it will operate Transfer this drawing to the

attached diagram sheet

SUB-TASK 3

Identification of components and material

Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the

legs of the components to suit the holes in the Vero board Make sure that the

components are installed in such a way that you can solder the legs of the components to

the board

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

SUB-TASK 4

Soldering and layout of components

Do not use too much solder when you solder the components to the board Put the tip of

the soldering iron to both the component and the Vero board to ensure enough heat on

both This will ensure that no hot connections occur Do not keep the soldering iron too

long at one place on the board it will over heat and the conductor will part from the board

After you have soldered cut the access of the legs of the components short and make

your project tidy

SUB-TASK 5

Workmanship of the completed task

Check for loose connection on the soldering of the components Cut of excess legs of the

components Insert the IC correctly in the IC holder Insert and connect the battery in the

holder Test the a-stable multi vibrator by switching on the toggle switch after you have

put in the battery The two LEDs will light up one after the other

SUB-TASK 6

Understanding of DC and AC Circuit

After switching the power on and the OPAMP operates take it to the assessor for

assessment If the OPAMP does not operate apply fault finding techniques and solve the

problem

Refer to the attached Data Sheet all the time

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

CIRCUIT DIAGRAM

FIGURE 1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

PHYSICAL LAYOUT OF PROJECT

FIGURE 2

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET

Page 9: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 9

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

Can interpret values on components

Can read and understand the printed information on all components (4 marks)

Can read and understand the printed information on most of the components (3 marks)

Can read and understand the printed information on some of the components (2 marks)

Can read and understand the printed information on any components (0-1 marks)

Can produce values of components by colour coding

Can determine the value of all the components by their colour coding (4 marks)

Can determine the value of most of the components by their colour coding (3 marks)

Can determine the value of some of the components by their colour coding (2 marks)

Can determine no value of all the components by their colour coding (0-1 marks)

Can interpret information in component catalogue

Can look up and interpret all the components in a catalogue (4 marks)

Can look up and interpret most of the components in a catalogue (3 marks)

Can look up and interpret some of the components in a catalogue (2 marks)

Canrsquot look up and interpret any components in a catalogue (0-1 marks)

SUB-TOTAL 20

SUB-TASK 4 Soldering and Layout of components

Arrangement of components on Planning Sheet and Vero board

Demonstrates an excellent arrangement of components on planning sheet and Vero board (4 marks)

Demonstrates a high level of competence on arrangement of components on planning sheet and Vero board (3 marks)

Demonstrates some competence on arrangement of components and planning sheet and Vero board (2 marks)

Demonstrates a poor arrangement of components (0-1 mark)

Checking of polarity of components

Checks the polarity of all components (4 marks)

Checks the polarity of most components (3 marks)

Checks the polarity of some components (2 marks)

Checks few or no polarity of any component (0-1 mark)

Soldering Demonstrates excellent ability to solder (4 marks)

Demonstrates an adequate ability to solder (3 marks)

Student demonstrates a reasonable ability to solder (2 marks)

Student demonstrates no ability to solder (0-1 mark)

SUB-TOTAL 12

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 10

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

SUB-TASK 5 Workmanship of the completed task

Functionality of the circuit

Circuit is operational on first attempt (4 marks)

Circuit is operational on second attempt after fault finding (3 marks)

Circuit is operational on third attempt after fault finding (2 marks)

Circuit is not operational after fourth attempt (0-1 mark)

Workmanship

Shows excellent workmanship in all specifications of task (4 marks)

Shows high level of competence on workmanship in all specifications of the task (3 marks)

Shows acceptable level of workmanship in some of the specifications of the task (2 marks)

Shows poor workmanship in most of the specifications of the task (0-1 mark)

SUB-TOTAL 8

SUB-TASK 6 Understanding of DC and AC circuits

Interpretation and analysis of circuit diagram

Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)

Demonstrates a good interpretation and analysis of circuit diagram (3 marks)

Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)

Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)

Testing and fault finding

Demonstrates excellent ability to test and find faults of the task (4 marks)

Demonstrates high level of ability to test and find faults of the task (3 marks)

Demonstrates some ability to test and find faults of the task (2 marks)

Demonstrates little or no ability to test and find faults of the task (0-1 mark)

SUB-TOTAL 8

TOTAL 100

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 11

SECTION 4 RECORD OF PERFORMANCE

INTEGRATED SUMMATIVE ASSESSMENT TASK

College

Campus

Studentrsquos Surname and First Names

Studentrsquos ID Number

Lecturerrsquos Surname and Initials

Date of conclusion of assessment

ASSESSMENT GRID

TASKS MARK ALLOCATION

STUDENTrsquoS MARK

Sub-Task 1 Safety selection and use of hand and power tools

12

Sub-Task 2 Selection and use of electronic test equipment and computer-aided program

40

Sub-Task 3 Identification of components and materials

20

Sub-Task 4 Soldering and layout of components

12

Sub-Task 5 Workmanship of the completed task

8

Sub-Task 6 Understanding of DC and AC Circuit

8

TOTAL 100

ISAT MARK AS A PERCENTAGE

COMPETENCE LEVEL INDICATORS

5-Point Achievement Rating Scale

5 (80-100)

4 (70-79)

3 (50-69)

2 (40-49)

1 (0-39)

Competency Level Indicators

Rating Code Rating Marks

5 Outstanding 80 ndash 100

4 Highly Competent 70 ndash79

3 Competent 50 ndash 69

2 Not Yet Competent 40 ndash49

1 Not Achieved 0 ndash 39

Studentrsquos competence level

Studentrsquos signature

Lecturerrsquos signature

Date

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over

NATIONAL CERTIFICATE (VOCATIONAL)

NQF LEVEL 2

INTEGRATED SUMMATIVE ASSESSMENT TASK

PROGRAMME

ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION

2010 ndash 2012

This document consists of 8 pages

INSTRUCTIONS TO STUDENTS

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 2

INSTRUCTIONS TO STUDENTS

This practical application task tests the studentrsquos ability to apply the knowledge and skills

acquired in the Electrical Infrastructure and Construction level 2 The work required of the

student in this Integrated Summative Assessment Task (ISAT) is an important and

compulsory component of the studies

1 You are required to

11

12

13

14

15

16

Study the task carefully

Note the time allocations per task

Note the submission dates

Pay careful attention to the mark allocated per section and the total

Study the resources required

Note the elements of the Assessment Tool that will be used to evaluate your

performance in each sub-task This is to ensure that you prepare sufficiently for

the conduct of the ISAT

2 Description of the task

The student must construct a-stable multi vibrator as per specifications given The task

consists of six sub-tasks

21 Safety selection and use of hand and power tools

22 Selection and use of electronic test equipment and computer aided program

23 Identification of components and materials

24 Soldering and layout of components

25 Workmanship of the completed task

26 Understanding of DC and AC circuit

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 3

3 Instructions for the task

SUB-TASK 1

Safety selection and use of hand power tools

The planning stage will be assessed and be part of the ISAT marks

Select the tools that you will need to perform this task Test the power machines for safety

and check the extension cord if it is save to use While you are working keep your

surroundings clean and do not waste material unnecessarily Use safety equipments only

is it is necessary After you have completed your task clean-up and pack away all tools

and equipments that you have used

SUB-TASK 2

Selection and use of electronic test equipment and computer aided program

Use the component catalogue and identify the five legs to be used Place the OPAMP

correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits

between the two sides of the IC Make use of a computer aided program to draw the circuit

and test the circuit to determine whether it will operate Transfer this drawing to the

attached diagram sheet

SUB-TASK 3

Identification of components and material

Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the

legs of the components to suit the holes in the Vero board Make sure that the

components are installed in such a way that you can solder the legs of the components to

the board

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

SUB-TASK 4

Soldering and layout of components

Do not use too much solder when you solder the components to the board Put the tip of

the soldering iron to both the component and the Vero board to ensure enough heat on

both This will ensure that no hot connections occur Do not keep the soldering iron too

long at one place on the board it will over heat and the conductor will part from the board

After you have soldered cut the access of the legs of the components short and make

your project tidy

SUB-TASK 5

Workmanship of the completed task

Check for loose connection on the soldering of the components Cut of excess legs of the

components Insert the IC correctly in the IC holder Insert and connect the battery in the

holder Test the a-stable multi vibrator by switching on the toggle switch after you have

put in the battery The two LEDs will light up one after the other

SUB-TASK 6

Understanding of DC and AC Circuit

After switching the power on and the OPAMP operates take it to the assessor for

assessment If the OPAMP does not operate apply fault finding techniques and solve the

problem

Refer to the attached Data Sheet all the time

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

CIRCUIT DIAGRAM

FIGURE 1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

PHYSICAL LAYOUT OF PROJECT

FIGURE 2

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET

Page 10: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 10

Evaluation Criteria

Level 4 Outstanding

Level 3 Highly

Competent

Level 2 Competent

Level 1 Not Yet

Competent

Mark

SUB-TASK 5 Workmanship of the completed task

Functionality of the circuit

Circuit is operational on first attempt (4 marks)

Circuit is operational on second attempt after fault finding (3 marks)

Circuit is operational on third attempt after fault finding (2 marks)

Circuit is not operational after fourth attempt (0-1 mark)

Workmanship

Shows excellent workmanship in all specifications of task (4 marks)

Shows high level of competence on workmanship in all specifications of the task (3 marks)

Shows acceptable level of workmanship in some of the specifications of the task (2 marks)

Shows poor workmanship in most of the specifications of the task (0-1 mark)

SUB-TOTAL 8

SUB-TASK 6 Understanding of DC and AC circuits

Interpretation and analysis of circuit diagram

Demonstrates excellent interpretation and correct analysis of circuit diagram (4 marks)

Demonstrates a good interpretation and analysis of circuit diagram (3 marks)

Demonstrates interpretation and analysis of circuit diagram with short falls (2 marks)

Demonstrates little or no ability to interpret and analyse circuit diagram (0-1 mark)

Testing and fault finding

Demonstrates excellent ability to test and find faults of the task (4 marks)

Demonstrates high level of ability to test and find faults of the task (3 marks)

Demonstrates some ability to test and find faults of the task (2 marks)

Demonstrates little or no ability to test and find faults of the task (0-1 mark)

SUB-TOTAL 8

TOTAL 100

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 11

SECTION 4 RECORD OF PERFORMANCE

INTEGRATED SUMMATIVE ASSESSMENT TASK

College

Campus

Studentrsquos Surname and First Names

Studentrsquos ID Number

Lecturerrsquos Surname and Initials

Date of conclusion of assessment

ASSESSMENT GRID

TASKS MARK ALLOCATION

STUDENTrsquoS MARK

Sub-Task 1 Safety selection and use of hand and power tools

12

Sub-Task 2 Selection and use of electronic test equipment and computer-aided program

40

Sub-Task 3 Identification of components and materials

20

Sub-Task 4 Soldering and layout of components

12

Sub-Task 5 Workmanship of the completed task

8

Sub-Task 6 Understanding of DC and AC Circuit

8

TOTAL 100

ISAT MARK AS A PERCENTAGE

COMPETENCE LEVEL INDICATORS

5-Point Achievement Rating Scale

5 (80-100)

4 (70-79)

3 (50-69)

2 (40-49)

1 (0-39)

Competency Level Indicators

Rating Code Rating Marks

5 Outstanding 80 ndash 100

4 Highly Competent 70 ndash79

3 Competent 50 ndash 69

2 Not Yet Competent 40 ndash49

1 Not Achieved 0 ndash 39

Studentrsquos competence level

Studentrsquos signature

Lecturerrsquos signature

Date

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over

NATIONAL CERTIFICATE (VOCATIONAL)

NQF LEVEL 2

INTEGRATED SUMMATIVE ASSESSMENT TASK

PROGRAMME

ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION

2010 ndash 2012

This document consists of 8 pages

INSTRUCTIONS TO STUDENTS

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 2

INSTRUCTIONS TO STUDENTS

This practical application task tests the studentrsquos ability to apply the knowledge and skills

acquired in the Electrical Infrastructure and Construction level 2 The work required of the

student in this Integrated Summative Assessment Task (ISAT) is an important and

compulsory component of the studies

1 You are required to

11

12

13

14

15

16

Study the task carefully

Note the time allocations per task

Note the submission dates

Pay careful attention to the mark allocated per section and the total

Study the resources required

Note the elements of the Assessment Tool that will be used to evaluate your

performance in each sub-task This is to ensure that you prepare sufficiently for

the conduct of the ISAT

2 Description of the task

The student must construct a-stable multi vibrator as per specifications given The task

consists of six sub-tasks

21 Safety selection and use of hand and power tools

22 Selection and use of electronic test equipment and computer aided program

23 Identification of components and materials

24 Soldering and layout of components

25 Workmanship of the completed task

26 Understanding of DC and AC circuit

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 3

3 Instructions for the task

SUB-TASK 1

Safety selection and use of hand power tools

The planning stage will be assessed and be part of the ISAT marks

Select the tools that you will need to perform this task Test the power machines for safety

and check the extension cord if it is save to use While you are working keep your

surroundings clean and do not waste material unnecessarily Use safety equipments only

is it is necessary After you have completed your task clean-up and pack away all tools

and equipments that you have used

SUB-TASK 2

Selection and use of electronic test equipment and computer aided program

Use the component catalogue and identify the five legs to be used Place the OPAMP

correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits

between the two sides of the IC Make use of a computer aided program to draw the circuit

and test the circuit to determine whether it will operate Transfer this drawing to the

attached diagram sheet

SUB-TASK 3

Identification of components and material

Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the

legs of the components to suit the holes in the Vero board Make sure that the

components are installed in such a way that you can solder the legs of the components to

the board

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

SUB-TASK 4

Soldering and layout of components

Do not use too much solder when you solder the components to the board Put the tip of

the soldering iron to both the component and the Vero board to ensure enough heat on

both This will ensure that no hot connections occur Do not keep the soldering iron too

long at one place on the board it will over heat and the conductor will part from the board

After you have soldered cut the access of the legs of the components short and make

your project tidy

SUB-TASK 5

Workmanship of the completed task

Check for loose connection on the soldering of the components Cut of excess legs of the

components Insert the IC correctly in the IC holder Insert and connect the battery in the

holder Test the a-stable multi vibrator by switching on the toggle switch after you have

put in the battery The two LEDs will light up one after the other

SUB-TASK 6

Understanding of DC and AC Circuit

After switching the power on and the OPAMP operates take it to the assessor for

assessment If the OPAMP does not operate apply fault finding techniques and solve the

problem

Refer to the attached Data Sheet all the time

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

CIRCUIT DIAGRAM

FIGURE 1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

PHYSICAL LAYOUT OF PROJECT

FIGURE 2

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET

Page 11: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 11

SECTION 4 RECORD OF PERFORMANCE

INTEGRATED SUMMATIVE ASSESSMENT TASK

College

Campus

Studentrsquos Surname and First Names

Studentrsquos ID Number

Lecturerrsquos Surname and Initials

Date of conclusion of assessment

ASSESSMENT GRID

TASKS MARK ALLOCATION

STUDENTrsquoS MARK

Sub-Task 1 Safety selection and use of hand and power tools

12

Sub-Task 2 Selection and use of electronic test equipment and computer-aided program

40

Sub-Task 3 Identification of components and materials

20

Sub-Task 4 Soldering and layout of components

12

Sub-Task 5 Workmanship of the completed task

8

Sub-Task 6 Understanding of DC and AC Circuit

8

TOTAL 100

ISAT MARK AS A PERCENTAGE

COMPETENCE LEVEL INDICATORS

5-Point Achievement Rating Scale

5 (80-100)

4 (70-79)

3 (50-69)

2 (40-49)

1 (0-39)

Competency Level Indicators

Rating Code Rating Marks

5 Outstanding 80 ndash 100

4 Highly Competent 70 ndash79

3 Competent 50 ndash 69

2 Not Yet Competent 40 ndash49

1 Not Achieved 0 ndash 39

Studentrsquos competence level

Studentrsquos signature

Lecturerrsquos signature

Date

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over

NATIONAL CERTIFICATE (VOCATIONAL)

NQF LEVEL 2

INTEGRATED SUMMATIVE ASSESSMENT TASK

PROGRAMME

ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION

2010 ndash 2012

This document consists of 8 pages

INSTRUCTIONS TO STUDENTS

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 2

INSTRUCTIONS TO STUDENTS

This practical application task tests the studentrsquos ability to apply the knowledge and skills

acquired in the Electrical Infrastructure and Construction level 2 The work required of the

student in this Integrated Summative Assessment Task (ISAT) is an important and

compulsory component of the studies

1 You are required to

11

12

13

14

15

16

Study the task carefully

Note the time allocations per task

Note the submission dates

Pay careful attention to the mark allocated per section and the total

Study the resources required

Note the elements of the Assessment Tool that will be used to evaluate your

performance in each sub-task This is to ensure that you prepare sufficiently for

the conduct of the ISAT

2 Description of the task

The student must construct a-stable multi vibrator as per specifications given The task

consists of six sub-tasks

21 Safety selection and use of hand and power tools

22 Selection and use of electronic test equipment and computer aided program

23 Identification of components and materials

24 Soldering and layout of components

25 Workmanship of the completed task

26 Understanding of DC and AC circuit

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 3

3 Instructions for the task

SUB-TASK 1

Safety selection and use of hand power tools

The planning stage will be assessed and be part of the ISAT marks

Select the tools that you will need to perform this task Test the power machines for safety

and check the extension cord if it is save to use While you are working keep your

surroundings clean and do not waste material unnecessarily Use safety equipments only

is it is necessary After you have completed your task clean-up and pack away all tools

and equipments that you have used

SUB-TASK 2

Selection and use of electronic test equipment and computer aided program

Use the component catalogue and identify the five legs to be used Place the OPAMP

correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits

between the two sides of the IC Make use of a computer aided program to draw the circuit

and test the circuit to determine whether it will operate Transfer this drawing to the

attached diagram sheet

SUB-TASK 3

Identification of components and material

Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the

legs of the components to suit the holes in the Vero board Make sure that the

components are installed in such a way that you can solder the legs of the components to

the board

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

SUB-TASK 4

Soldering and layout of components

Do not use too much solder when you solder the components to the board Put the tip of

the soldering iron to both the component and the Vero board to ensure enough heat on

both This will ensure that no hot connections occur Do not keep the soldering iron too

long at one place on the board it will over heat and the conductor will part from the board

After you have soldered cut the access of the legs of the components short and make

your project tidy

SUB-TASK 5

Workmanship of the completed task

Check for loose connection on the soldering of the components Cut of excess legs of the

components Insert the IC correctly in the IC holder Insert and connect the battery in the

holder Test the a-stable multi vibrator by switching on the toggle switch after you have

put in the battery The two LEDs will light up one after the other

SUB-TASK 6

Understanding of DC and AC Circuit

After switching the power on and the OPAMP operates take it to the assessor for

assessment If the OPAMP does not operate apply fault finding techniques and solve the

problem

Refer to the attached Data Sheet all the time

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

CIRCUIT DIAGRAM

FIGURE 1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

PHYSICAL LAYOUT OF PROJECT

FIGURE 2

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET

Page 12: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over

NATIONAL CERTIFICATE (VOCATIONAL)

NQF LEVEL 2

INTEGRATED SUMMATIVE ASSESSMENT TASK

PROGRAMME

ELECTRICAL INFRASTRUCTURE AND CONSTRUCTION

2010 ndash 2012

This document consists of 8 pages

INSTRUCTIONS TO STUDENTS

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 2

INSTRUCTIONS TO STUDENTS

This practical application task tests the studentrsquos ability to apply the knowledge and skills

acquired in the Electrical Infrastructure and Construction level 2 The work required of the

student in this Integrated Summative Assessment Task (ISAT) is an important and

compulsory component of the studies

1 You are required to

11

12

13

14

15

16

Study the task carefully

Note the time allocations per task

Note the submission dates

Pay careful attention to the mark allocated per section and the total

Study the resources required

Note the elements of the Assessment Tool that will be used to evaluate your

performance in each sub-task This is to ensure that you prepare sufficiently for

the conduct of the ISAT

2 Description of the task

The student must construct a-stable multi vibrator as per specifications given The task

consists of six sub-tasks

21 Safety selection and use of hand and power tools

22 Selection and use of electronic test equipment and computer aided program

23 Identification of components and materials

24 Soldering and layout of components

25 Workmanship of the completed task

26 Understanding of DC and AC circuit

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 3

3 Instructions for the task

SUB-TASK 1

Safety selection and use of hand power tools

The planning stage will be assessed and be part of the ISAT marks

Select the tools that you will need to perform this task Test the power machines for safety

and check the extension cord if it is save to use While you are working keep your

surroundings clean and do not waste material unnecessarily Use safety equipments only

is it is necessary After you have completed your task clean-up and pack away all tools

and equipments that you have used

SUB-TASK 2

Selection and use of electronic test equipment and computer aided program

Use the component catalogue and identify the five legs to be used Place the OPAMP

correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits

between the two sides of the IC Make use of a computer aided program to draw the circuit

and test the circuit to determine whether it will operate Transfer this drawing to the

attached diagram sheet

SUB-TASK 3

Identification of components and material

Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the

legs of the components to suit the holes in the Vero board Make sure that the

components are installed in such a way that you can solder the legs of the components to

the board

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

SUB-TASK 4

Soldering and layout of components

Do not use too much solder when you solder the components to the board Put the tip of

the soldering iron to both the component and the Vero board to ensure enough heat on

both This will ensure that no hot connections occur Do not keep the soldering iron too

long at one place on the board it will over heat and the conductor will part from the board

After you have soldered cut the access of the legs of the components short and make

your project tidy

SUB-TASK 5

Workmanship of the completed task

Check for loose connection on the soldering of the components Cut of excess legs of the

components Insert the IC correctly in the IC holder Insert and connect the battery in the

holder Test the a-stable multi vibrator by switching on the toggle switch after you have

put in the battery The two LEDs will light up one after the other

SUB-TASK 6

Understanding of DC and AC Circuit

After switching the power on and the OPAMP operates take it to the assessor for

assessment If the OPAMP does not operate apply fault finding techniques and solve the

problem

Refer to the attached Data Sheet all the time

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

CIRCUIT DIAGRAM

FIGURE 1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

PHYSICAL LAYOUT OF PROJECT

FIGURE 2

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET

Page 13: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 2

INSTRUCTIONS TO STUDENTS

This practical application task tests the studentrsquos ability to apply the knowledge and skills

acquired in the Electrical Infrastructure and Construction level 2 The work required of the

student in this Integrated Summative Assessment Task (ISAT) is an important and

compulsory component of the studies

1 You are required to

11

12

13

14

15

16

Study the task carefully

Note the time allocations per task

Note the submission dates

Pay careful attention to the mark allocated per section and the total

Study the resources required

Note the elements of the Assessment Tool that will be used to evaluate your

performance in each sub-task This is to ensure that you prepare sufficiently for

the conduct of the ISAT

2 Description of the task

The student must construct a-stable multi vibrator as per specifications given The task

consists of six sub-tasks

21 Safety selection and use of hand and power tools

22 Selection and use of electronic test equipment and computer aided program

23 Identification of components and materials

24 Soldering and layout of components

25 Workmanship of the completed task

26 Understanding of DC and AC circuit

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 3

3 Instructions for the task

SUB-TASK 1

Safety selection and use of hand power tools

The planning stage will be assessed and be part of the ISAT marks

Select the tools that you will need to perform this task Test the power machines for safety

and check the extension cord if it is save to use While you are working keep your

surroundings clean and do not waste material unnecessarily Use safety equipments only

is it is necessary After you have completed your task clean-up and pack away all tools

and equipments that you have used

SUB-TASK 2

Selection and use of electronic test equipment and computer aided program

Use the component catalogue and identify the five legs to be used Place the OPAMP

correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits

between the two sides of the IC Make use of a computer aided program to draw the circuit

and test the circuit to determine whether it will operate Transfer this drawing to the

attached diagram sheet

SUB-TASK 3

Identification of components and material

Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the

legs of the components to suit the holes in the Vero board Make sure that the

components are installed in such a way that you can solder the legs of the components to

the board

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

SUB-TASK 4

Soldering and layout of components

Do not use too much solder when you solder the components to the board Put the tip of

the soldering iron to both the component and the Vero board to ensure enough heat on

both This will ensure that no hot connections occur Do not keep the soldering iron too

long at one place on the board it will over heat and the conductor will part from the board

After you have soldered cut the access of the legs of the components short and make

your project tidy

SUB-TASK 5

Workmanship of the completed task

Check for loose connection on the soldering of the components Cut of excess legs of the

components Insert the IC correctly in the IC holder Insert and connect the battery in the

holder Test the a-stable multi vibrator by switching on the toggle switch after you have

put in the battery The two LEDs will light up one after the other

SUB-TASK 6

Understanding of DC and AC Circuit

After switching the power on and the OPAMP operates take it to the assessor for

assessment If the OPAMP does not operate apply fault finding techniques and solve the

problem

Refer to the attached Data Sheet all the time

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

CIRCUIT DIAGRAM

FIGURE 1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

PHYSICAL LAYOUT OF PROJECT

FIGURE 2

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET

Page 14: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 3

3 Instructions for the task

SUB-TASK 1

Safety selection and use of hand power tools

The planning stage will be assessed and be part of the ISAT marks

Select the tools that you will need to perform this task Test the power machines for safety

and check the extension cord if it is save to use While you are working keep your

surroundings clean and do not waste material unnecessarily Use safety equipments only

is it is necessary After you have completed your task clean-up and pack away all tools

and equipments that you have used

SUB-TASK 2

Selection and use of electronic test equipment and computer aided program

Use the component catalogue and identify the five legs to be used Place the OPAMP

correctly on the Integrated Circuit (IC) tray Cut the Vero board to prevent short circuits

between the two sides of the IC Make use of a computer aided program to draw the circuit

and test the circuit to determine whether it will operate Transfer this drawing to the

attached diagram sheet

SUB-TASK 3

Identification of components and material

Use the DIAGRAM SHEET drawing and transfer components to the Vero board Bend the

legs of the components to suit the holes in the Vero board Make sure that the

components are installed in such a way that you can solder the legs of the components to

the board

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

SUB-TASK 4

Soldering and layout of components

Do not use too much solder when you solder the components to the board Put the tip of

the soldering iron to both the component and the Vero board to ensure enough heat on

both This will ensure that no hot connections occur Do not keep the soldering iron too

long at one place on the board it will over heat and the conductor will part from the board

After you have soldered cut the access of the legs of the components short and make

your project tidy

SUB-TASK 5

Workmanship of the completed task

Check for loose connection on the soldering of the components Cut of excess legs of the

components Insert the IC correctly in the IC holder Insert and connect the battery in the

holder Test the a-stable multi vibrator by switching on the toggle switch after you have

put in the battery The two LEDs will light up one after the other

SUB-TASK 6

Understanding of DC and AC Circuit

After switching the power on and the OPAMP operates take it to the assessor for

assessment If the OPAMP does not operate apply fault finding techniques and solve the

problem

Refer to the attached Data Sheet all the time

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

CIRCUIT DIAGRAM

FIGURE 1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

PHYSICAL LAYOUT OF PROJECT

FIGURE 2

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET

Page 15: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 4

SUB-TASK 4

Soldering and layout of components

Do not use too much solder when you solder the components to the board Put the tip of

the soldering iron to both the component and the Vero board to ensure enough heat on

both This will ensure that no hot connections occur Do not keep the soldering iron too

long at one place on the board it will over heat and the conductor will part from the board

After you have soldered cut the access of the legs of the components short and make

your project tidy

SUB-TASK 5

Workmanship of the completed task

Check for loose connection on the soldering of the components Cut of excess legs of the

components Insert the IC correctly in the IC holder Insert and connect the battery in the

holder Test the a-stable multi vibrator by switching on the toggle switch after you have

put in the battery The two LEDs will light up one after the other

SUB-TASK 6

Understanding of DC and AC Circuit

After switching the power on and the OPAMP operates take it to the assessor for

assessment If the OPAMP does not operate apply fault finding techniques and solve the

problem

Refer to the attached Data Sheet all the time

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

CIRCUIT DIAGRAM

FIGURE 1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

PHYSICAL LAYOUT OF PROJECT

FIGURE 2

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET

Page 16: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 5

CIRCUIT DIAGRAM

FIGURE 1

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

PHYSICAL LAYOUT OF PROJECT

FIGURE 2

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET

Page 17: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 6

PHYSICAL LAYOUT OF PROJECT

FIGURE 2

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

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DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

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VEROBOARD LAYOUT PLANNING SHEET

Page 18: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 7

DATA SHEET

NA555 NE555 SA555 SE555 TLC555

Frequency(Max)(MHz) 05 05 21

VCC(Min)(V) 45 45 45 45 2

VCC(Max)(V) 16 16 16 18 15

PinPackage 8PDIP 8SOIC

8PDIP 8SO 8SOIC 8TSSOP

8PDIP 8SOIC

8PDIP 8SOIC

14TSSOP 8PDIP 8SO 8SOIC

Operating Temp Range(Celsius)

-40 to 105

0 to 70 -40 to 85 -55 to 125

-40 to 125-40 to 850 to 70

Samples Samples Samples Samples Samples

Inventory Inventory Inventory Inventory Inventory

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET

Page 19: Isat l2 Elec Infrastruc Construc 2010-12(1)

NC (V) Electrical Infrastructure and Construction Level 2 2010 - 2012

Copyright reserved Please turn over 8

VEROBOARD LAYOUT PLANNING SHEET