Government polytechnic,Turuvekere

Department of Mechanical Engineering

List of Lab experiments

Basic Computer Skills Lab

Unit – I

Introduction to computer hardware and software

1. Identify and understand the models of Computers, Identify and understand front panel and back panel connections of a Computer system, Identify and understand the physical components of a Computer. 2. Conduct computer system connection and understand the booting process. 3. Familiarization of GUI based Operating System environment. 4. Practice creating Icons and Folders, Creating/Opening of file, Editing and saving the document, Copy, Cut and Paste operations, in-built utilities of OS like – Text editors, paint, calculator, etc. 5. Practice browsing of different sites using search engine.

6. Practice Creating E-Mail accounts, E-Mail Group, Sending, and Receiving of

EMails. Unit –II

Word Processing

1. Create a Business Letter and Personal Letter. 2. Create a Company Letterhead. 3. Create a Simple Newsletter with minimum three columns. Insert a Clip art in the newsletter. 4. Create a Resume for a Job Application. 5. Create the cover page of a Project Report(use Word Art, insert Picture Image). 6. Prepare the class time table for your class. Spreadsheet

1. Create a worksheet with five columns. Enter ten records and find the sum of all columns using autosum feature. 2. You have a monthly income of Rs.11000. Your monthly expenditures are Rent- Rs 3500, Food- Rs. 1500, Electricity- Rs.110, Phone- Rs. 160, and Cable TV-Rs. 300. Prepare a worksheet with the Monthly Income, the Monthly Expenditures listed and summed, monthly savings amount (what’s left over each month) calculated, and the amount saved per day (assuming 30 days in a month). Directorate Of Technical Education Karnataka State 15ME13P Page 3 3. Create a worksheet containing the pay details(containing Basic pay, DA, HRA ,Other Allowance , Deductions- PF,PT, Insurance, Gross and Net salary) of the employees using formulas. 4. Create a Simple Bar Chart to highlight the sales of a company for three different periods. 5. Create a Pie Chart for a sample data and give legends. Presentation

1. Using presentation tool, Create a simple Presentation consisting of 4-5 slides about Input and Output Devices. 2. Create a presentation about a book containing Title, Author, Publisher and Contents. 3. Create an automated (with timings & animation) Presentation with five slides about

different Models of Computers. Use Presentation tool.

BASIC WORK SHOPPRACTICE-I

UNIT:I CARPENTRY PRACTICE CONTACT HOURS:22 Hours

Study of the joints in roofs, doors, windows and furniture available in Polytechnic Hands-on-exercise:

1. Demonstration of different wood working machines/ Power Tools of different wood working process, like planning, marking, Chiseling, Grooving, turning of wood etc. 2. Exercise on One simple Wood work joints like Mortise and tennon, dovetail joint by sawing, planning and cutting. UNIT:II FITTING SHOP CONTACT HOURS:28 Hours

Hands-on-exercise

1. Demonstration of different fitting tools and drilling machines and power tool 2. Demonstration of different operations like chipping, filing, drilling, tapping, cutting etc. 3. Exercise on One simple fitting job involving practice of chipping, filing, drilling, tapping,

cutting etc. UNIT:III WELDING PRACTICE CONTACT HOURS:28 Hours

Hands-on-exercise

Study of the tools used in Arc and Gas welding practice. 1. Demonstration of different welding tools / machines. 2. Demonstration on Arc Welding, Gas Welding, gas cutting and rebuilding of broken parts with welding. 3. Exercise on One simple job involving butt, lap, Tee and corner joint

APPLIED SCIENCE LAB 15SC04P

Experiments: PART- A

1. Vernier Calipers: a) To determine the dimensions of given solid cylinder and hence calculate its volume. b) To determine the dimensions of given hollow cylinder and hence calculate its volume Activity: To calculate the density of material of given solid/hollow cylinder knowing its volume and mass. 2. Screw Gauge: a) To determine the thickness of given metal and glass plate. b) To determine the diameter of given thin wire and hence to calculate its volume. c) To determine the diameter of given metallic sphere and hence to calculate its volume. Activity: 1.To calculate volume of such half meter length wire. 2. To calculate volume of such number (50 or 75 etc) of spheres. 3. Laws of concurrent forces: a) Verify the law of parallelogram of forces. b) Verify the converse law of triangle of forces. c) Verify Lami’s theorem. Activity: To determine the weight of given body using law of parallelogram of forces. 4. Moment bar: To verify the conditions of equilibrium of coplanar parallel forces acting on a body. Activity: To determine the weight of given body using moment bar. PART-B

5. Viscosity:

a) To determine the co-efficient of viscosity of water by poiseuille’s method(for a given radius of capillary tube)

Activity: To plot a graph of ht versus V and to find ht/V from slope.

6. Sonometer: a) To determine the frequency of given tuning fork by comparison method. b) To determine the frequency of given tuning fork by absolute method. Activity: 1.Plot a graph of ‘n’ versus ‘l’ from the graph, find the frequency unknown Tuning fork

2.Plot a graph of √� versus ‘l’ from the slope of graph find √� /l

3.To calculate linear density ‘m’ by knowing√� /l and ‘n’

7. Resonance: a). To determine the velocity of sound in air at room temperature by using resonance air

column apparatus. (for single resonating length) Activity:1. To calculate velocity of sound in air at 00 C. 2. To determine the unknown frequency of tuning fork. 8.Surface Tension: a) To determine the Surface Tension of water by capillary rise method using Travelling Microscope. (radius of capillary tube is given ) Activity: Calculate radius of the capillary tube by knowing the surface tension of the liquid and height of liquid column in capillary tube. 9. Boyle’s law: a) To verify Boyle’s law using Boyle’s law apparatus. Activity:1.To plot a graph of pressure versus volume 2. To plot a graph of 1/pressure versus volume.

BASIC ELECTRICAL AND ELECTRONICS ENGINEERING LAB

List of Graded Experiments: 1. Construct a suitable circuit to verify Ohm’s law. 2. Rig up and test the wiring circuit to control a lamp and a three pin socket independently. 3. Rig up and test the wiring circuit to control two lamps independently. 4. Construct and test fluorescent lamp circuit. 5. Construct and test the staircase wiring circuit (control from 2 places). 6. Construct and test Meter board wiring using single phase Energymeter, MCB/ELCB, Kit-kat fuse and neutral link. 7. Build and test a circuit to measure power and power factor in a single phase ac circuit. 8. Construct a circuit to measure energy in KWh in a single phase ac circuit. 9. Construct a suitable circuit to start and reverse the direction of three phase induction motor using DOL/ Star-Delta/ Auto-Transformer starter. 10. Test and make a report of the fully charged and discharged conditions of a given Lead-acid battery. 11. Construct a circuit using a single Relay to turn ON a lamp connected to NC and to turn OFF another lamp connected to NO contacts of Relay. 12. Construct a circuit to obtain the forward bias characteristic of a Diode. 13. Construct and test Zener diode as a voltage regulator. 14. Build and test halfwave rectifier circuit. 15. Build and test full wave bridge rectifier circuit (without filter). 16. Construct a circuit to verify the truth tables of NOT,AND, OR, NOR and NAND gates. 17. Identify and draw the layout diagram for a simple PANEL BOARD/consisting of bus bars, CB/MCB/ELCB, meters, HRC fuses, magnetic contactors, cables, earthing points.

MECHANICAL COMPUTER AIDED DRAFTING (MCAD) 15ME35P

UNITI: CAD COMMANDS FAMILIARIZATION 08Hrs

Introduction to MCAD(parametric modelling) software-Understanding parametric modelling technique, knowing the software interface, co-ordinate systems supported- Planes and their creation, reference axis, Sketch, Profile, constraints-geometrical and dimensional, need for constraining, fully constrained, under constrained, over constrained. UNTII: PRACTICE ON COMMANDS 08Hrs

Practice 2D and 3D drawing commands Hands on Exercises. Create2DDrawing for the ISOMETRIC OBJECT given by selecting from model question bank Create 3D Drawings for the ORTHOGRAPHIC VIEWS given by selecting from model question bank UNIT III: ASSEMBLY MODELING 44Hrs

Know the assembly environment, setting the assembly environment, types of assembly design approach-bottom-up and top-down assembly. Creating assembly Editing and modifying assembly relationships -Creating exploded view of the assembly –Create 3DAssemblymodels of- Socket and Spigot type Cotter Joint-Knuckle joint—Plummer

Block- Screw Jack

UNIT IV:MODELS BY USING EQUESTIONS 18Hrs

Hexagonal nut and bolt, Solid muff coupling and journal bearing

BASIC WORK SHOP PRACTICE-II

UNITI: FORGING PRACTICE 26Hrs

Demonstration and detailed explanation of tools and equipment used-Description and specification of anvils, swage blocks, hammers, tongs, fullers, swages -Forging operations in smithy shop-Bending operation, upsetting operation,-Safety measures to be observed in the smithy shop Hands on Experience

Job 1. To forge from Round to Square Job 2. To forge from Round to Hexagon Job 3: To forge a L-hook or L-nail. Job 4: To prepare a job involving upsetting process Job 5: To forge a chisel UNTII: SHEET METAL PRACTICE 26Hrs

Introduction and demonstration of hand tools used in sheet metal shop.- different types of hammers, hard and soft mallet, sheet and wire gauge,- demonstration of various raw materials used in sheet metal shop e.g. M.S. sheet, galvanized-iron plain sheet, galvanized corrugated sheet, aluminum sheets etc. Hands on Experience

Job I: Practice on making single riveted lap joint/double riveted lap Joint. Job II: Practice on making single cover plate chain type, seam joint and Preparation of any one utility articles like Tray , Cylinder, container and Funnel.

UNITIII: FOUNDRY SHOP 26Hrs

Study of Foundry Tools and Equipment-Sand Mixing, Study of cope and drag-Practice in a single box-Cutting Practice by double box Hands on Experience

Preparation of moulds- Job I:Hexagon, Square and Circular Mould Job II: Combination of Hexagon with Square or Circular Mould Job III: Flange coupling – Pulley/ Gear pulley by using patterns

MECHANICAL TESTING AND QUALITY CONTROL LAB

PART A. MECHANICAL TESTING

1 Determine co efficient of friction of ant two oil by using Thurston oil tester and compare their results 2 Determine flash and fire point of any two lubricants of different grade and compare their results 3. Determine viscosity of given oil by using Redwood viscometer/Saybolt viscometer. 4 Calculate Impact Value of Mild Steel, COPPER using CHARPY/ IZOD Impact Test & compare 5 Calculate hardness number by Brinell /Rockwell method Using hardness testing machine 6 Determination of yield stress, ultimate stress, breaking stress, percentage reduction in area, percentage elongation, Young’s modulus by conducting tension test on Ductile Materials like Mild Steel, Aluminium in Universal testing machine. Draw Stress Strain Curve for both and compare 7 Find out Compressive Strength of C.I , M.S using Compression Testing Machine 8 Conducting bending test on wood specimen by UTM and evaluate the results 06 9 Conducting Shear test on mild steel specimen by UTM and evaluate the results PART- B. QUALITY CONTROLL

10 Standard use of basic measuring instruments: Surface plate, v-block, sprit level, combination set, filler gauge, plate gauge, wire gauge, screw pitch gauge, radius gauge, vernier caliper, micrometer and slip gauges, vernier

height gauge, Vernier depth gaugeto measure dimension of given jobs. 11 Determine unknown angle of component using sine bar and slip gauges. 03 12 Measurement of screw thread elements by using screw thread micrometer, screw pitch gauge. 13 Measurement of gear tooth elements by using gear tooth vernier caliper 03 14 Study on surface defects by Dye penetrant test/ ultrasonic portable equipment(Not for conduction)

HYDRAULICS AND PNEUMATIC LAB

A. HYDRAULICS

1 Determination of Coefficient of discharge of Venturimeter 06

2 Determination of hydraulic coefficients of Rectangular and V-Notch and compare 3 Evaluate the major losses in pipes of varying diameter due to friction and interpret their results 4 Interpret the performance characteristics for Pelton wheel 06

5 Evaluate the performance characteristics for Kaplan turbine 06

6 Analyzethe performance characteristics for Francis turbine. 06

7 Draw the performance characteristics for Centrifugal pump and compare the same with reciprocating pump 8 Draw the performance characteristics for Reciprocating pump 06

B . PNEUMATICS

9 Control of actuators by simple hydraulic circuits. 06

10 Control of actuators by simple Pneumatic circuits. 09

11 Crate and Demonstration of meter in and meter out circuit. 06

12 Demonstration of sequencing circuit. 03

13 Demonstration of pneumatic circuit for speed control of double acting cylinders.

14 Demonstration of pneumatic circuit for speed control of pneumatic motor.

MACHINE SHOP

UNITI: TURNING PRACTICE

Demonstration and detailed explanation of Machine tools (Ordinary lathe/capstan/Turret Lathe) and work holding devices used-Description and specification of Cutting tools required for creating model–Various Turning operations performed in Machine shop-Safety practices to be observed-Clean the machine after operation Hands on Experience

1. Turning practice on mild steel specimen to an accuracy of ± 0.25 mm. 2. Preparing at least ONE model involving the following operations. Plain Turning, Step Turning, Taper Turning, Knurling, Thread cutting UNTII: DRILLING PRACTICE

Demonstration and detailed explanation of Machine tools (Radial drilling Machine) and work holding devices used-Description and specification of Cutting tools required for creating Directorate Of Technical Education Karnataka State 15ME46P MECH model–Various Drilling operations performed in Machine shop-Safety practices to be observed-Clean the machine after operation

Hands on Experience

1. Preparation of ONE model with two or three different sizes holes for different materials at different locations UNITIII: SHAPING PRACTICE

Demonstration and detailed explanation of Machine tools (Shaper) and work holding devices used-Description and specification of Cutting tools required for creating model–Various Shaping operations performed in Machine shop-Safety practices to be observed-Clean the machine after operation Hands on Experience

1. Preparation of ONE model with Shaping step block cut dovetail to angles 60 UNITIV: MILLING PRACTICE

Demonstration and detailed explanation of Machine tools (MILLING MACHINE) and work holding devices used-Selection and specification of Cutting tools required for creating model–Various Milling operations performed in Machine shop-Safety practices to be observed-Clean the machine after operation Hands on Experience

1. Preparation of ONE model Milling-square-hexagon, Spur gear teeth, Key way from round bars with indexing and without indexing UNITV: GRINDING PRACTICE

Demonstration and detailed explanation of Machine tools (Grinding) and work holding devices used-Selection and specification of Grinding wheels required for creating model–The grinding operations performed in Machine shop-Safety practices to be observed-Clean the machine after operation

C PROGRAMMING LAB

1 Introduction to C programming (Lecture and demo).And Write C programme to convert the temperature in degree Celsius to degree Fahrenheit. 2 To find the sum and average of 3 real numbers.

3 To find the sum of even and odd numbers from 1 to N. 4 To find the sum of digits of a number. 5 To reverse the given integer and check whether it is a palindrome or not 6 To find the roots of a quadratic equation using switch statement. 7 To arrange N numbers in ascending order using Bubble sort technique 8 To perform addition of two matrices

9 To perform a multiplication of two matrices after checking the compatibility for multiplication. 10 To find the largest of 3 numbers using functions (functions with arguments and return value) 11 To find the distance travelled by a vehicle, given it’s initial velocity ‘u’, acceleration ‘a’ and time ‘t’ [ S = ut + 1/2at2]

12 To find out Clearance volume of an Engine, given its bore diameter, Length of stroke and Compression ratio 13 To find the power transmitted by shaft by inputting the value speed and torque transmitted

THERMAL ENGINEERING LAB

1 Determination of calorific value of liquid and gaseous fuel by using Bomb calorimeter /Boy’s gas calorimeter 2 Draw the valve timing diagram of 4-stroke diesel engine 06

3 Plot the performance characteristics of single cylinder diesel engine for different loads 4 Draw the heat balance sheet of single cylinder diesel engine 06

5 Plot the performance characteristics of single cylinder petrol engine for different loads 6 Find the indicated power of individual cylinders of an engine by using MORSE test 7 Determine the volumetric efficiency of air compressor 8 Determine the co efficient of performance of refrigerator 9 Determine thermal conductivity of thick slab 10 Determine thermal conductivity of composite wall 11 Determine thermal conductivity of thick cylinder PART- B. STUDY EXPERIMENTS

13 Study of I.C. Engine parts (Cylinder block, head, piston and piston ring Connecting rod& crank shaft , spark plug, Carburettor, fuel injector and fuel pump 14 Study of Differential, rear axle and power steering mechanism 15 Case study on Dismantling and assembly of engines

MECHATRONICS LAB PART A. PERFORMING EXPERIMENTS

1 Design and Simulate the following digital circuits using MultiSim/any digital circuit simulator. Basic Logic Gates (i) Basic Logic Gates (ii) Demorgan's Theorem (iii) Combination Logic (iv) Encoders and Decoders

(v) Flip-Flops PART B. PERFORMING EXPERIMENTS (PLC)

1 1. Draw the ladder rungs to represent i. Two switches Normally Open and both have to be closed for the motor to operate. ii. Either of the two Normally Open switches to be closed for the coil to be energised 2. Devise a timing circuit that will switch on for 20s and then switch it off. 3 Device a timing circuit that will switch on 10s and off 20s and so on

4 Device a circuit that can be used to start a motor and then to start a pump after delay of 50s. Then the motor is switched off 10s before the pump is switched off when the pump remains on for 50s. 5 Devise a circuit that can be used with the domestic washing machine to switch on a pump to pump water for 100s into the machine. Then switch on a heater for 50s to heat the water. The heater is switched off and another pump is switched on to empty the water for 100s. 6 Design and simulate of fluid power circuits to control (i)velocity (ii) direction of a single and double acting actuators 7 Design and Simulate a ladder diagram for car parking. (Hint: car is to be detected and enter the parking space to a particular location if space is available. If there is no space, a lamp should indicate

that parking is full. )

CNC LAB

PART A. CNC turning centre part programming

a. Sketch each part with dimensions. b. Prepare CNC part programme using G and M codes with ISO format. C.Show various zeros and tool path on part sketch with color codes and dimensions. d. Simulate the prepared part programme using available simulation software’s.

e. Prepare the parts on CNC 1 Develop a part program for step turning and simulate 2 Develop a part program for taper turning and simulate

3. Develop a part program for circular interpolation and simulate 4 Develop a part program for multiple turning operation and simulate 5 Develop a part program for thread cutting, grooving and simulate

6 Develop a part program for internal drills, boring and simulate

PART- B. CNC machining centre part programming

a. Sketch each part with dimensions. b. Prepare CNC part programme using G and M codes with ISO format. C. Show various zeros and tool path on part sketch with color codes and dimensions. d. Simulate the prepared part programme using available simulation software’s. e. Prepare the parts on CNC 7 Develop a part program for grooving and simulate on CNC Milling 8 Develop a part program for drilling (canned cycle) and simulate

9 Develop a part program for mirroring with subroutines and simulate 10 Develop a part program for rectangular and circular pocketing and simulate

Computer Aided Analysis and Simulation lab ANALYSIS and SIMULATION USING ANSYS

1 Introduction to computer aided analysis and simulation 06 2 Awareness about using ANSYS 02 3. Familiarisations of using ANSYS 02 4.Tutorial on Finite element analysis - Introduction-Element

properties-one dimensional problems-beams and frames-three dimensional problems in stress analysis 5Stress Analysis of Bars of Constant Cross Section Area

1. Determine the nodal displacement, stress in each element and reaction forces of bar subjected to a Tensile force. 2. Determine the nodal displacement, stress in each element and reaction forces of bar subjected to a Compression force. 6Stress Analysis of Bars of Tapered Cross Section Area

1. Determine the nodal displacement, stress in each element and reaction forces of Taper bar subjected to a external loads. 7Stress Analysis of Bars Varying In Cross Section or Stepped

Bars

1. Determine the nodal displacement, stress in each element and reaction forces of Stepped bar subjected to a external loads. 8Stress analysis of Beams

1. Draw the shear force and bending moment diagrams for the given Cantilever beam due to applied load. 2. Draw the shear force and bending moment diagrams for the given Simply supported beam due to central point load 3. Draw the shear force and bending moment diagrams for the given Simply supported beam due to UDL 4. Draw the shear force and bending moment diagrams for the given Simply supported beam due to applied load(one point loads, and UDL) 5. Draw the shear force and bending moment diagrams for the given Simply supported beam due to Uniformly varying load(UVL) 6. Draw the shear force and bending moment diagrams for the given Simply supported beam due to applied load(Several point loads,UVL) 9Stress Analysis of a Rectangular Plate with a circular Hole

1. Determine the stress acting on a rectangular plate with a circular hole due to the applied external load