SL No

Question Option_1 Option_2 Option_3 Option_4 ANS

1Engineering Drawing is a representation of object:-

In Roman language

As a graphic representation

PrintingNone of the above

B

2Set squares are used in Engineering Drawing to draw

Horizontal lines

Vertical lines Straight linesAll straight lines except horizontal lines

D

3Compass is used in Engineering Drawing to draw

Circles of 15 cm radius

Draw circles of 30 mm radius without attachment bar.

Draw circles of 30 cm radius with attachment bar.

Draw circles of 30 mm radius with attachment bar.

C

4 Eraser should be used toErase the unwanted line

Erase the unwanted line

Erase the unwanted line without erasing the surrounding wanted lines

Both B & C C

5 Dividers are used in Engineering drawing toDivide curved or straight line

To transfer dimensions from one part of the drawing to another part.

Set off given distances.

All the above D

6For fixing the paper draughting tape and chips are used because

It appears good

It hold the drawing paper and board.

It will not damage the paper or board.

Both B & C C

7In the figure ellipse the line passing through center perpendicular to major axis is called:

Shorter axis Minor axis. Longer axisNone of the above.

B

8Engineering Drawing language for who are engaged in:

Manufacturing

InspectionMaintenance work

All the above. D

9Engineering Drawing gives the details of any object:

Shape Size

All information required for manufacture or inspection of the object.

Material. C

10The instrument used to draw irregular curves of changing radius is called :-

Bow compass.

Compass. French curve Divider. C

11 Thickness of Drawing board is : 15 mm 20 mm 26 mm 25 mm D

12The pencil used for drawing should be kept sharp to stab should not be

Less than 60 mm

More than 85 mm

Less than 75 mm

More than 65 mm.

C

13An angle which is more than 180 degree but less than 360 degree is ;-

Obtuse angle Straight angle Reflex angle Adjacent angle. C

14When two angles together make 180 deg They are said to be

Complementary angles.

Supplementary angles.

Reflex angles Acute angles. B

15When two angles together make 90 deg they are said to be

Supplementary angle

Acute angle. Adjacent angle.Complementary angle.

D

16 Modern Roman letter is consisting of Thick lines Thin lines Wide linesHeavy and light line.

D

17In engineering Drawing normal lettering ratio height and width is

9:6 6:2 3:1 7:4 D

18 Good style of lettering should aim atUniformity of thickness.

Uniformity of shape, size and style.

Uniformity of spacing.

All the above. D

19At the bottom of the drawing sheet to make title block the line used is

Thin line. Medium line. Thick line. Extra thick line. D

20 Wider lines are drawn asShort dashes.

Short and long dashes.

Short dashes closely and evenly spaced.

Short double dashes.

C

21The breaks used on cylindrical metal are often refers to as

F brakes. L brakes. T breaks. S breaks D

22 The following lines are drawn as thin lines Section lines. Center lines. Outline. Both A & B D

23The ratio of the dimension of the drawing to the corresponding dimension of the object is the

Isometric drawing.

Oblique drawing.

Representation factor.

Both B & C. D

24One of the three dimensional drawing but far side will appear converging is known as :-

Isometric drawing.

Oblique drawing.

Perspective drawing

Non pictorial drawing.

C

25In Engineering drawing, if the length is drawn half the actual length and face at an angle of 45 drawing is known as :-

Isometric. Cabinet. Cavalier. Perspective. B

26 In third angle projection method

The view from the above placed underneath and vice versa.

The view from the above placed above and vice versa.

The view from the left placed on the left and vice versa.

Both B & C. D

27In first angle projection method the projection are made on

Elevation projected on VP.

Plan projected on HP.

End view projected on auxiliary plane (right to left).

All the above. D

28The representation fraction or scale of drawing is equal to

Length of object in the drawing by actual length of the object.

Width of the object in the drawing by actual width of the object.

Area of the object in the drawing by actual area of the object.

Either B 0r C A

29In Binary subtraction, subtract 11011 from 10111 :-

- 11011 - 00100 + 11011 + 00100. B

30 Complement of a complement equal to; Zero Complement One Original. D

31The 1's compliment of a binary number is the number that results when :-

Each 0 is changed to 1 and vice-versa.

Each 0 is changed to 2 and vice-versa.

Each 0 is changed to 4 and vice-versa.

Each 0 is changed to 8 and vice-versa.

A

32 Binary equivalent of 34.4 (8) is : 10100.1100 11000.0011 10011.0101 11100.100 D

33Among the following, the output device in a computer is;

Key board Printer Mouse Joy stick. B

34 Many dot matrix printers are:-Unidirectional

Tri-directional Bi-directionalQuadra-directional.

C

35 Compass is used to draw circles of: Up to 25 cm up to 10 cm up to 20 cm up to 15 cm D

36 T' Square is used for:Drawing horizontal line

Drawing vertical line

Drawing curved line

Drawing semi circular line

A

37Now a days fixing the paper on the board, the following pins is used:

Drawing pinRound head pin

Clips and tape Paper pin C

38Colour of paper usually used in Engineering Drawing is:

Black Blue Brown White D

39If two angles together make 90 deg , they are said to be:

Straight angle

Complementary angle

Reflex angle Adjacent angle B

40One of the three dimensional drawing far side will appear converging is known as:

Isometric drawing

Oblique drawing

Perspective drawing

Non-pictorial drawing

C

41The special tool drafting machine marked on drawing board does not cover the function of:

T' Square Set Square Compass Protractor C

42The drawing tool, which is used to draw or measure such angle, which cannot be withdrawn with set square is:

Protractor Bow compass Compass French curve A

43In the blue print process, when sensitized paper is washed in running water, the portion covered by black tracing line turn in to:

Blue White Red Green B

44 Triangles or set squares comes in pair of:

45 deg.-120 deg.- 180 deg. And 60 deg.- 90 deg.-180 deg.

45 deg - 60 deg. -90 deg. And 60 deg. - 90 deg. - 180 deg.

45 deg. - 90 deg. - 45 deg. And 30 deg. - 90 deg. - 60 deg.

45 deg. - 60 deg. - 180 deg. And 30 deg. - 90 deg. - 60 deg

C

45In convention of lines, thinnest line a draftsman is able to draw is:

20 mm 0.02 mm 0.20 mm 0.002 mm C

46 A good style of lettering should aim at:Uniformity of thickness

Uniformity of shape and size

Uniformity of spacing and style

All the above D

47The inclination angle in a slanting type of lettering is:

95 deg. 85 deg. 75 deg. 65 deg C

48An instrument used for making curve lines is known as:

French curve File pad Shield Square A

49 Leader lines are used for: Decoration Projection Dimension Section. C

50In engineering drawing, a thick free hand irregular lines indicate:

Break line Section line Adjacent partsParts to be sectioned

A

51When two angles together make 180 deg , they are said to be:

Supplementary angle

Complementary angle

Acute angle Obtuse angle. A

52A drawing of an entirely finished product with the components assembled together in the correct relative position is known as:

Detail drawing

Assembly drawing

Pictorial drawing

General drawing D

53To show yards, feet and inches on a scale, the scale will be suitably constructed as:

Plain scale RF scale Diagonal scale Vernier scale C

54A thick small dash and two small dashes are used in the line to express

Long break Short break Cutting plane Hidden parts C

55 Dot matrix printer is an example of:- Line printer Laser printer Drum printer Character printer D56 A keyboard is a most common:- Memory unit Input device Control device Output device. B

57A movable vertical surface for controlling the motion of an aerodyne about the normal axis IS:-

Rudder Elevator Aileron Fin. A

58The left side of an aircraft when facing the front as seen from the cockpit is :-

Star board Port side Rear sideNone of the above.

B

59

Movable aerofoil situated at the rear end of each wing and designed to impart a rolling movement to the aerodyne about longitudinal axis is :-

Rudder Elevator Aileron Fin. C

60Hinged rear positions of the main plane which move in the same direction on Port and Star board wings are:

Elevator Aileron Fin Flaps. D

61A fixed vertical surface affecting the directional stability of an aero plane is :-

Rudder Fin Flaps Elevator B

62A fixed horizontal surface situated at the rear of an aircraft affecting the longitudinal stability is :-

Main plane Fuselage Tail plane Fin. C

63One of the thrust augmentation device used in jet engine is :-

Exhaust pipe Turbine After burner Compressor. C

64 A supporting surface of a aerodyne is :- Main plane Tail plane Fuselage Fin. A

65The capacity of a material to absorb the energy in elastic range

strength stiffness resilience Resistance C

66The property being permanently extended or flattened by hammering rolling or pressing without rupture

Elasticity Swaging Malleability Tenacity C

67The property whereby a metal can be drawn out into a wire with out cracking

Elasticity Ductility Savaging Drawing. B

68The liability of a metal to fracture on receiving a blow or shock

Malleability Tenacity Fusibility Brittleness D

69The permissible difference in dimension to allow for various fits is termed as :

Clearance Allowance Resistance Tolerance. B

70 Pig Iron isweak and brittle

ductile and malleable

Hard and Brittle.

none of the above

A

71 The cast steel is produced by :Cementation process

Crucible process

Open hearth process

Electric process. B

72 Pure iron has a tensile strength of :20 Tons /Sq inch

18 Tons/ Sq Inch

55 Tons / Sq inch

50 Tons / Sq inch.

B

73Pig iron is used as the basic material for producing ;-

Cast iron

Cast iron ,wrought iron and steel by suitable process

Marking off and surface plate

Steel.. B

74 The constituents of brass are: - Copper, Zinc Copper, Tin Tin, Lead Copper, Lead. A

75Metal is a substance which posses certain physical properties such as:

They conduct heat or electricity

They generally have ringing tones

They have metallic lusture or shine

All the above. D

76Forcing plastic material through die of required shape by means of hydraulic pressure is called:

Plasticity Swaging Stamping Extrusion D

77The body of a twist drill is lesser in diameter towards the shank end by:

0.002" 0.001" 0.004" 0.003" B

78 Hide faced hammer is classified by:Size and weight

Type and weight of the head in ounce

Weight onlyThe number stamped on it

D

79Slow and progressive deformation of a material with time under a constant stress is called:

Strength Creep Resilience Stiffness B

80The property of a material to resist heat and electricity is known as

Stiffness Resistivity Conductivity Ductility. B

81The straight part of the tread, which connect the crest and root is known as:

Crest Flank Root Thread angle B

82 While soldering low voltage ceramic capacitors, the soldering time should be kept less than 5

350 deg. C 200 deg. C 225 deg. C 250 deg. C B

seconds, and temperature should not exceed:

83Hand brace is used for drilling small holes up to:

1/2" diameter 1/8" diameter 1/4" diameter 1" diameter C

84The accuracy of micrometer in metric system is:

0.02 mm 0.01 mm 0.05 mm 0.04 mm B

85Large component and number of parts can be soldered in one operation by:

Hard soldering

Sweat soldering

Dip soldering Silver soldering C

86A type of thread used for transmitting great pressure in one direction only, is called:

Worm thread Acme thread Square thread Buttress thread D

87To calibrate the torque wrenches, the number of comparison reading required at least is:

Two times Three times Five times Six times C

88In switch board connection, the red coloured cable is used for:

Earth line Neutral line Live line Lifeline C

89 The size of split pins is determined by its:Diameter and colour code

Diameter and length

Diameter and breadth

Diameter and material.

B

90The type of locking device suitable for Pressurised cabin, fuel and oil tanks is"

Nylon stiff nut

Phillips stiff nut

Air tight stiff nut Nyloc cap nut D

91 Lubricating oil is graded by: ColourAmount of hydro carbon present

Code Viscosity. D

92 Lubricant oil is mixture of:Trichloroplylene

Fluid lubricants

Hydro carbonNon-leaded petrol

C

93 Use correct size of spanner so that:The over tightening is avoided

The time delay is avoided

The possibility of cross threading is avoided

The bolt head or nut is not damaged

D

94A filler material used to join the parent metal is known as:

Flux Solvent Solder Wax C

95 Brazing is used to give strong joint for: Brass Zinc Nickel Silver A

96In aluminothermic soldering iron, the source of heat is:

Brazing lamp MOX tabletElectrical heating element

Open flame. B

97 The key seat rule is made of:Graphite carbon steel

Spring carbon steel

Low carbon steel

High carbon steel.

D

98 All the precision instruments are made of: Invar steel Silver Nickel Steel A

99The accuracy of the feeler gauge for measuring thickness is:

0.001" 0.004" 0.005" 0.003" C

100The type of capacitor suitable for use in AC circuits such as in AC motor starter is :

Paper capacitor

Electrolytic capacitor

Polorised electrolytic condenser

Non-polarized electrolytic capacitor

B

101The tenacity with which a magnetic material holds on to its magnetism is called :

Coercive force

Retentivity CoercivityMagnetic Hysterisis

C

102In DC generator staggering slots are used to minimize ripple in the

Input voltageInput and out put voltage

Output voltage Output current C

103

The total capacitance in an electrical circuit having three capacitors of 2 micro farads, 3 micro farads and 6 micro farads connected in series:

11F 11 Mf 0.1 mF 10 F C

104In iron cored transformer with 8: 1 ratio is connected to 120V mains, the voltage across secondary will be:

20 V 15 V 10 V 25 V. B

105 For high voltage the insulator used is: Trace paper Melinex Impregnated Tissue paper B

106Any machine converts mechanical energy into electrical energy is known as

Motor Stator Generator Amplifier C

107Fleming's right hand rule is used to find out the direction of:

FieldMotion of the conductor

Direction of induced emf

Direction of current.

B

108In delta connected alternators the 3 phase windings are joined in:

Auto transformer

Step up transformer

Step down transformer

Voltage transformer

B

109In transformerif K is greater than one, then the transformer is called:

Greater accuracy

Robust in construction

To provide equal amount of frequency

Cooling purpose D

110The maximum value, positive or negative of an alternating quantity is known as:

Time period Frequency Amplitude Cycle C

111The direction of motion of a DC motor is given by:

Fleming's right hand rule

Fleming's left hand rule

Faraday's law Lenz's law B

112The total capacitance in electrical circuit having three capacitors of 2 mF, 3 mFand 6 mF connected in series is:

11 F 11 Mf 1 F 1 mF D

113 By decreasing the flux, the speed a shunt motor will be:

Remain constant

Increase Decrease Diminish because torque

B

is insufficient.

114Kirchoff's law are more comprehensive than ohms law are used for solving:

Electrical conductance

Electrical temperature co efficient

Electrical resistance network

Electrical net work

D

115Resistance offered by 100 cm length of wire having an area of cross section of 100 cm sq is called:

Specific temp. co- efficient

Specific conductance

Specific co-efficient

Specific resistance

D

116The isometric drawing represent three dimensions of the object:-

Lenght, breadth and height of the object.

Breadth, height and are of the object.

Height, lenght and circumference of the object.

Length, breadth, height and depth of the object.

A

117Computer which doesn't compute directly with the number is called :

Mini computer

Micro computer

Digital computer

Analog computer A

118 The number 17 octal is equivalent to binary : 111 1110 10000 1111 D119 Which of the following is not octal number: 19 7 15 101 A

120 Junction diode is a :Bipolar device

Constant voltage device

Unipolar deviceConstant current device

A

121 A register stores :One word of data

A byte One instruction 4 bits data A

122 Not gate is known as : Converter Inverter Rectifier Amplifier B

123 Computer hardware usually refers to :

Hard metallic component of a computer

Various associated program

CPU

Central processor input/output devices and backing storage

A

124 Which of the statement is correct :NAND gate = Bubbled AND gate

NOR gate =Bubbled OR gate

Bubbled OR gate = NAND gate

AND gate = OR and NOR gate

C

125In high level language, the source program is translated into object program with the help of :

Computer Converter Compiler Translator C

126When an input electrical signal A=10100 is applied to a NOT gate its output signal is a:

01011 10101 10100 00101 A

127 Truth table of a logic functions :Summaries its output value

Tabulates all its input conditions

Displays all its input/output possibilities

Is not based on the logic algebra

C

128 A static memory is one that

Is capable of storing binary information indefinitely

Requires periodic restoration of information

Is volatileHas destructive read out

A

129Semi conductor memory in computer is based on

Magnetic circuit operation

Transformer operation

Transistor operation

Non magnetic circuit operation

C

130 The only function of a NOT gate is to: Stop a signalRe-complement a signal

Invert an input signal

Act as a universal gate

C

131The first generation computer was introduced with:

Solid state transistors

Vacuum tubes Chips IC's B

132 Pitot pressure is connected to: Altimeter ROCI ASI Cabin altimeter. C

133Any error in indication of accelerometer along the horizontal axis is cancelled by:

A strong coiled spring

Two compensating sector gears

The restraining springs

The stop spring fitted both sides.

B

134The principle of accelerometer is that two masses electrically suspended in parallel about:

Vertical axisArthwardship axis

Fore and aft axis

' Z' Axis. C

135The type of damping used in accelerometer type 480/01 is:

Eddy current damping

Low viscosity oil type damping

Air dampingCalculated spring type of damping

A

136Moving coil instrument can be used to measure:

AC only DC and ACDC or rectified AC

AC and pulsating DC

C

137The oscillation of the pointer about its final deflected position in a indicating instrument is minimized by:

Controlling force

Damping force Restoring force Balancing force B

138Moving coil instrument works on the principle of:

Fleming's left hand rule

Fleming's right hand rule

Kirchoff's lawGenerator principle

A

139In bourden tube pressure gauge, the indicating mechanism is coupled to the:

Open end of the tube

Free end of the tube

Either a) or b)None of the above

B

140In bourden tube for measuring very high ranges, the tube is made of:

Phosphor bronze

Mild steelBeralium bronze

Beralium copper. B

141 In moving coil instrument, the temperature variation is compensated by:

The air gap between pole

A weak small permanent

The variation of current in the

Two hair springs coiled in

D

pieces and former

magnet moving coilopposite direction

142 In torque measuring system, indicator work on:Selsyn system

Desyn systemData Selsyn system

Two wire Selsyn system.

B

143 The ammeter used to measure AC only is:Electromagnetic type

Permanent magnet type

Induction type Moving iron type. C

144In tachometer indicator, the pointer movement is controlled by:

The drag cupThe permanent magnet

A hair springThe interaction of the magnetic fields.

C

145Oscillation of the pointer at lower range of Tacho indicator may be due to:

Defective indicator

Synchronizing point is too low

Two indicators are connected in parallel

Indicator not being in synchronism with generator.

D

146 Tachometer indicator comprises a:Three phase induction motor

Three phase, self starting synchronous motor

Three phase synchronous motor

Single phase, self starting synchronous motor

B

147In ratio meter type thermometer, the two coils in moving coil unit is so connected that the torque produced by them:

Oppose each other

Assist each other

Are in same direction

Do not influence each other

A

148Variable capacitance of the tank circuit measures the quantity of fuel in the fuel contents gauge indicator in a form of:

Alternating current

Direct current AC or DCFluctuating direct current.

B

149The float arm type fuel content gauges work on the principle of:

Selsyn transmission system

Desyn transmitting system

Magnesyn transmission system

Variable capacitance system

B

150In float arm type fuel content gauge, the pointer returns to off scale position by:

Hair springA strong permanent magnet

CoilWeak permanent magnet.

D

151The vapour pressure type thermometer is used for measuring:

The temperature of engine oil

Coolant temperature in liquid cooled engine

Temperature of fuel in the tank

Humidity of air. B

152The unwanted screen current in a pentode valve is prevented by:

CapacitorSuppressor grid

Control grid Choke. B

153The common base PNP junction transistor has reverse biased arrangement between:

Emitter and base

Emitter and collector

Collector and base

Base and emitter C

154When the emitter/ base junction of a transistor is reverse biased, collector current:

Is reversed Increases Decreases Stops. D

155If acid is splashed in eyes, it should be washed with :

5% solution of soda bi carbonate

5% solution of soda bi carbonate and plenty of water

2% solution of nitrogen

5% solution of alkali and plenty of water.

A

156 Pitching movement of a/c is controlled by: Aileron Rudder Elevator Fin C157 The constituents of Bronze are Copper, Zinc Copper, Tin Tin, Lead Copper, lead. B

158 The properties of Al areLight, ductile, soft and malleable

soft, poor corrosion resistance and brittle

soft, plastic, malleable and acid resistant

soft, ductile and malleable.

A

159 A great advantage of the electric furnace is :Very easy to operate

absence of gas fume and impurities

no maintenance is required

very economical. B

160 The blister steel is manufactured by ;Electric process

open hearth process

Bessemer process

Cementation process.

D

161Plastic is an organic material, which shows the property of

Elasticity Ductility Malleability Plasticity D

162 Pig Iron contains an average about:

94% Iron and 4 % carbon + remainder impurities

98% Iron and 2% carbon

95 % Iron and 2 % carbon

97% Iron and 2 % carbon + 1 % impurities.

A

163 The properties of lead are:

Soft, brittle and poor corrosion resistant

Soft, ductile and malleable

Soft, plastic, malleable and acid resistant

Malleable and corrosion resistant.

C

164 One of the purest forms of iron produced is : Wrought Iron Cast Iron Pig iron Both (a) and (c.) A

165 The properties of nickel areHard, brittle ad corrosion resistant

Hard, ductile, corrosion resistant, withstand high tempt.

Soft, poor corrosion resistant and brittle

soft, ductile, malleable, corrosion resistant.

B

166 The carbon contents in the high carbon steel is 0 to 0.25 % 0.25 % to 0.75 0.75% to 1.5 % 0.75% to 1.25 %. C

%

167 Cast iron is manufactured byCementation process

crucible process

Cupola furnace.Open-hearth process.

C

168 Chisel are classified by;

Shape overall length and width of the cutting edge

Shape and overall length

Material and size

Type and cutting edge.

A

169 Hand vice are classified by weight ; In ounces In gramsAnd length of the jaw

Of the body. C

170Chisel used for cutting the narrow flat bottom grooves is:

Flat chiselCross cut chisel

Diamond point chisel

Half round chisel.

B

171 The file used on soft material is ; Single cut Double cut Dreadnought Rasp. C

172 Files are classified byLength, section cut and grade

Type of material and size

Type and overall length

Length section and type.

A

173 Die nut is used for;Cutting external thread

Cutting internal thread

Cutting starting thread

Clearing the damage thread.

D

174The drill which is used for cutting the counter sinking holes are

Peg or Arboring drill

Bottoming drill Rose bit drill Twist drill. C

175 Scribers are made of :

High carbon steel hardened and tempered

High carbon steel

High carbon and alloy steel

Alloy steel hardened and tempered.

A

176 Sharpening the scribes is doneOn a grinding stone

By smooth fileBy dead smooth file

Either by smooth file or dead smooth file.

A

177 Surface plates are classified byType material and size

Length and breadth

Type and weight

Type and Size. B

178 The accuracy of surface plates are tested by Vee blocksMaster Surface plate

Fitter's square Vernier caliper. B

179If the zero of the micrometer thimble crosses the datum line

It is to be subtracted from the measurement

It is to be added to the measurement

It is to be neglected

It is to be adjusted with the help of concealed nut.

B

180Play in the spindle threads of micrometer is taken up by

Using a 'c' spanner

Adjusting anvil in the frame

Adjusting the thimble on the spindle

Adjusting a nut at the thimble end of the barrel

D

181The lubricant used for drilling mild steel and wrought iron is

Kerosene Soapy waterCutting oil or soapy water solution

None of the above.

B

182Lubricant used for drilling magnesium and its alloys

None Soapy water Kerosene Cutting oil B

183Lubricant used for drilling High carbon and alloy steels

Turps or Kerosene

Cutting oil or soapy water

None Water A

184 Reamers are classified by ;Type and size

Type material and size

Type size and length

Type and angle of cutting edge

A

185 The taps are used for cuttingInternal screw threads

External screw threads

Starting threads Finishing threads A

186The tool used to rundown an existing thread that has become burred or damaged, is :

Die plate Second tap circular Die Die nut D

187 Screw drivers are classified byType material and size

Type and length of blades

Width of the tipLength of the blade

D

188 Spanner are classified byType and length

Type material and size

Type material and size of nut or bolt on which it fits

Type and size C

189The pliers used for lead bending of wires and lead forming are :

Flat more pliers

Pliers round nose

Half round nose pliers

Pliers combination

B

190The property of resisting breakage when under the application of a pulling force

Tenacity Fatigue Hardness Spinning A

191The position on the crord line of an aerofoil at which the resultant force act is:

Laminarised part of the air flow.

Pressurised part of the air flow.

Centre of pressure

Centre of gravity C

192At the critical angle of attack, the flow of air from top surface of aerofoil becomes turbulent, which is termed as :

Burbling Curling Knurling Rolling A

193 In flight the lift of an aerofoil can be altered by:-Angle of attack only

Speed of an a/c only

Angle of attack and speed of an a/c

Density and pressure of air.

C

194Lift is obtained at the expense of a certain amount of horizontal force known as:-

Thrust Weight DragForward movement

C

195Honey comb construction is often used in the manufacture of

Flying control surface

AC canopy Main plane Tail plane A

196 MS dos file name is primarily ment for:Plus 5 extension characters

Plus 2 extension characters

No extension characters

Plus 3 extension characters

D

197 A computer keyboard is a most common :- In put device Out put deviceElectronic device

Mechanical device

A

198All physical requirements to construct a computer is known as :-

Software HardwareElectronic components

Mechnical components

B

199

Before taking a printout of document all the spelling mistakes and the grammatical mistakes have to be carried out MS word provides a helpful feature to carryout this task is called :-

Check Spell checkAutomatic spell check

Correction C

200Booting is the process of loading the operating system into main memory from :-

Volatile memory

Non volatile memory

Main memorySecondary memory

D

201 Daisy wheel printers is a :-Non impact printer

Impact printer Ink jet printer Laser printer B

202For opening the existing file next time remember :-

File name Pass wordDocument name

none of the above

B

203 Laser printers is a :-Impact printer

Non impact printers

Drum printer Line printer B

204Stored data goes off from the computer memory when the power supply is turned off is termed as :-

Volatile memory

Non volatile memory

Secondary memory

Non of the above A

205

The commands that do not require any specific files for being excuted and are brought into the memory as soon as the computer is switched on is termed as :-

Common commands

External commands

Internal commands

Acutal commands

C

206The first name in the file name of Dos can have :-

01 to 03 characters

01 to 08 charaters

only 05 charaters

Unlimited charaters

B

207 The main directory is called :- Files Programmes Sub directory Root directory D

208The memories that retain the stored data even when the power to the device is shut off is termed as :-

Volatile memory

Non volatile memory

Secondary memory

Non of the above B

209To close the presentation file, click on the close option from the :-

File menu End show Mouse bottom View menu A

210 To create a new file, the command used is :-

Copy CON <existing file name><new file name>

Copy CON <file name>

Copy <cource drive:file name>

Copy <destination drive:file name>

A

211Very large scale intergation circuits are introduced in :-

Second generation of Computers

First generation of computers

Third generation of computers

Fourth generation of computers

D

212When you open a new document in work, the top and bottom margins are preset at :-

1 inch 1.25 inch 2 inch 2.5 inch A

213Which of the following cannot be sensed by our sence organs :-

Software HardwareSoft and Hardware

None of the above

A

214You should save your active documents every :-

10 to 15 minutes

15 to 20 minutes

5 to 10 minutes 20 to 25 minutes A

215The grammer you use while typing a command is called :-

Syntex Format PROM EPROM A

216 Capacity test on batteries are carried out:After every initial charge

Once in every three months

Whenever capacity of the battery is suspected to be low

All above D

217 If acid is split in eyes, it should be washed with:Ammonia in diluted solution

Olive oilPlenty of cold water

5% solution of soda bi-carbonate and plenty of warm water

D

218In the lead acid type of batteries, the positive plate is made of:

Spongy lead Carbon Iron oxide Lead per oxide D

219Laminated steel core used is for transformers instead of solid iron cores in order to:

Have more supply

Reduce eddy currents

Produce eddy currents

Reduce the weight

B

220 The core of the transformer is laminated to:Increase eddy current

Reduce eddy current

Increase output voltage

Decrease output voltage

B

221 Transformer is used in a circuit for:Raising DC voltage

Lowering DC and AC voltage

Raising or lowering DC voltage

Raising or lowering AC voltage

D

222Variation of voltage in a circuit is obtained by fitting a:

Transformer Suppressor Regulator Rheostat A

223 The wattage of omni light is 60w 45w 100w 25w B

224In relation to amplitude modulation, the disadvantage of frequency and phase modulation is

very heigh range

very low range low range heigh range C

225In an alkaline charging room, boric acid solution, first aid outfit, saw dust and boric acid crystals are:

First aidNeutralising agents

Neutral agent First aid agents B

226When alkali acid has been split on skin or clothing apply:

Boric acidBoric acid followed by cool water

Boric acid followed by warm water

Boric acid followied by sopy water

C

227 The common form of threads used are ;V and sqare thread.

BAvthread.Sqare and round thread.

V and round thread.

A

228The type of sectional view used when a view is needed showing both the exterior and interior construction of a symmetrical object is;

Full section. Half section. Partial section.Revolved section.

B

229When the cutting plane cuts an object laterally or cross wise it is called

Longitudinal section.

Lateral section.

Half section. Cross section. D

230In engineering drawing the minium length of pencil stub to be kept as;

50mm 30mm 45mm 75mm D

231set sqare are used for drawing the different lines of ;

Curved lines Oblique linesVertical&inclined lines

None above C

232The hidden lines are to be drawn, the grade of pencil used is :-

H B HB 2 H D

233In Modern roman letter type elementary strokes are:-

Vertical Horizontal Accented Longitudinal C

234A line having one long and two short dashes alternately and evenly spaced is:-

Short break line

Ditto line Long break lineCutting plane line

D

235 Dimension line should be placed:-Horizontal to dimension line.

Perpendicular to dimension line

Close to the object.

Out side to feature wherever possible.

D

236Free hand and wavy line used for detail and assembly drawing is represented by:-

Short break line

Ditto line Hidden line Focus line A

237

In engineering drawing the long dash and dot alternately placed to represent an alternate position or indication of the limiting position of moving parts is known as:-

Indicating line.

Long break line.

Phantam line. Locus line. C

238In engineering drawing thin long chain represents:-

False and developed view.

Boundary lines.

Hidden detail. Centre line. D

239 Short and zig zag line is used to show:-Limited portion of a larger object.

Limited portion of a smaller object.

Boundary line of any object.

Broken line of any object.

A

240The dimension should not be scaled from blue print because:-

Dimensions are always not be scale.

Dimensions are inconsistant.

The Paper is subjected to slight shrinking due to washing and drying up.

Dimensions may not beadequate.

C

241The title block is located in the drawing sheet at :-

Top left hand corner.

Bottom any corner.

Bottom right hand corner.

Top right hand corner.

C

242White lines can be added to a blue print even after printing process i s over by :

Ferric salt solution.

Potassium terrocynide.

Ferro- prussiate.

Strong washing soda solution

D

243The category of drawing, where sides will look smaller which are away from the viewer than that which is near is:-

Oblique drawing.

Isometric drawing.

Pictorial drawing.

Perspective drawing.

D

244The drawing which gives the drawing of a single part which cannot be f urther sub divided is called:-

Simple drawing.

Assembly drawing.

Detail drawing. Spot drawing. C

245 Type of drawing shows a number of components in an assembled condition to from

Detailed drawing.

Assembly drawing.

General arrangement

Auxiliary drawing.

C

a self contained unit is: drawing.

246In engineering drawing, the projection of the top side of the object o n the horizontal plane is called:

Front elevation.

Plane. Single plane. Side elevation. B

247The chief characteristic of third angle projection is that each view i s so placed that it represents the side of the object:

Remote from it in the adjacent view.

Near to it in the adjacent view.

Opposite to it in the adjacent view.

At an angle to it in the adjacent view.

B

248

The projection consists of plan and side view, but arranged in such a way that each view is drawn to represent that nearside of adjacent vie w is:

First angle projection.

Third angle projection.

Orthographic projection.

General section view.

B

249In orhtographic drawing, the object is imagined to be placed in front of a vertical plane known as:

Front elevation.

Horizontal plane.

Ground plane. Reference. A

250Orthographic projection are classified in number of categories accordi ng to the object placed in the four quadrants are :

Two Categories.

Four Categories.

Three Categories.

Five categories. B

251To read workshop drawing of a mechine parts means to make cut the sequ ence of operation in process of;

Manufacturing of parts.

Checking of parts.

Dismantling of parts.

Assembling of parts.

A

252In third angle orthographic plan view taken from ;

Left on the front elevation.

Right on the front elevation.

Top of the front elevation.

Bottom of the front elevation.

C

253In four stroke cycle engine the cycle of operation comprises of :-

2 revolution of the crank shaft

1 revolution of the crank shaft

One upward and one down ward movement of the piston

One upward and two down ward movement of the piston

A

254In turbojet engine the initial ignition is rovided by :-

Sparking plug

Compresion ignition

Hot ignition Igniter pump D

255 The compressor's main parts are :-Compressor, rotor and diffuser

Compressor, diffuser and zet nozzle

Turbine, exhaust pipe and compressor

Compressor, rotor and zet nozzle

A

256The electric field of the primary coil is mode to collapse to generate high voltage in secondary coil by the help of :-

ChokeContact breaker

RectifierSealed discharge gap

B

257The principle of electric starter is to convert the :-

Mechanical energy into electrical energy

Electrical energy into mechanical energy

Magnetic energy into electrical energy

Magnetic energy into mechanical energy

B

258The purpose of a vent line on the top of a fuel tank is to :-

Over flow the excess fuel

Vent fuel vapour to atmosphere

REduce the fire risk

Vent fuel vapour and maintain differential atmospheric pressure

D

259 Altimeter works on the principle of :-Moving coil milivolt meter

Thermocouple AneroidDynamic pressure

C

260At high altitude pilot is provided with oxygen to avoid :-

Loss of judgement and giddiness

Blood pooling and frost bite

Loss of judgement and forst bite

Loss of vision and blood pooling

C

261 Jet pipe temperature gauge is a :-Moving coil milivolt meter

Moving coil volt meter

Ohm meter Power meter A

262 The air speed indicator works on :-Static pressure

Dynamic pressure

Difference between pitot and static pressure

Bowden tube principle

C

263The induced EMF in exhauset gas temperature gauge depends upon :-

Material of thermocouple

Difference between hot junction and cold junction temperature

Velocity of gas All above B

264Aircraft fuel tanks are not normally left empty or partially empty ove r night This is to :-

Ensure long life of the tank

Avoid gum formation

Ensure setting of sediments

Prevent water contamination

D

265Aircraft must not be left overnight with partially empty tanks because rapid condensation is liable to take place in :-

Reservoir Refuellers Fuel tanks Fuel rankers C

266For aeroengine ground run a suitable fire extingusher to be positioned is :-

CTC CO2 Methyl Bromide Foam type B

267The aircraft should be towed on soft ground by :-

Towing arm Towing frame Towing bridle Steering arm C

268The towing apparatus used in conjuction with a towing vehicle for pull ig light aircraft forward is :-

Towing frame

Towing bridleTowing bridle aof wire cable

Lightly manufactured towing arm

A

269What is the operatus to be used for aircraft with tail wheel for towin g forward on soft or uneven ground :-

Towing bridle and steering arm

Towing arm or bar

Towing bridle of wire cable

Towing frame C

270While marshalling arms repeatedly moved upward, back ward, back on-ing on ward will indicate :-

Stright aheadStright backward

Slow down engine

Chocks away A

271A ladder mounted on wheels with a working platform adjustable for high t is :-

Swing back ladder

Special elevating ladder

Shelt ladderSwing ack flat ladder

B

272Damage to the hyd system of pillar hyd jack is prevented by providing :-

Small over flow holes at the upper end of pressure cylinder

Small over flow holes at the lower end of pressure cylinder

Cut out valve Vent valve A

273For dealing with small gasolene, oil or kerosene fire the fire extingu sher used is :-

CO2 Soda acid CTCPyrene fire extingusher

D

274For servicing large aircraft the servicing ladder used is :-

Shell ladderSpecial elevating ladder

Swing back ladder

Swing back flat ladder

B

275In aircraft marshalling signals, if right or left arm down, other arm moved accross body and entended will indicate :-

Turn which backing tail to port/stbd

All clear marshalling finished

Proceed under guidance to next marshaller

Slow down port engine/stbd engine

C

276Marshalling signals of arms down palm facing out wards swing arms from extended postion out wards wil indicate :-

Chocks away Insert chocksSlow down engine

Stop engine A

277On of the main advantages of CO2 as an enxtinguishing agent is :-

Its rapidity of discharge

It prevent burning and makes to starve fire

Being inert gas it effectively blankets a fire

It cuts of the oxygen

C

278

On receipt of AOG demand the senior logistic officer is to ensure for identifications tally with standard publication and signals to be send to :-

BRDsAppropriate Equipment depot

Civil agencyManufacturer agency

B

279Prior to starting of aero engines the suitable type of fire enxtinguis her to be positioned is :-

CTC CO2 type Methyl bromide Foam B

280

Signalling by left arm extended forward horizontally cleanched right h and making horizontal slicing movement below the left palm, downward i s for :-

Winch down Winch UP Hover Release load D

281The fire extinguisher which is designed primarily to extinguish aircra ft engine starting up fire is :-

Methyl bromide

CO2 CTC Foam B

282 CRT stands for:Code rate timer

Cathode ray tube

Clutter reduction technique

Call relay timer B

283 PRP stands for:Peak repetition period

Pulse repetition period

Pulse receiving power

Peak receiving power

B

284 The light rays flows in sinusoidal path in:step index fibre

Mono index fibre

Graded index fibre

Single index fibre C

285 Black box is a:Ground equipment

Trans-receiverAir-borne device

Test equipment C

286 Digital flight data recorder is located in cockpit ATC CUR Black-box D

287The number of satellites to cover the whole earth by INTELSAT is:

two three four five B

288 Laser stand for:

Light amplification by stimulated emission of radiation

Light amplification by simulated emission of radiation

Light amplification by stimulated emmission of radiowaves

Light amplification by simulated emission of electric radiation

A

289 The otto cycle consists of

Two constant volume line and two adiabatic

Two constant volume line and a adiabatic line

One constant volume line and Two adiabatic

Two constant volume line only

A

290 Radius gauges are used to check the: Out side Inside Inside radius of Inside or outside D

circumrence of a component.

circumference of a component.

a component.radius of a component.

291

A metric micrometer having a plus error of 0.01 mm, when set to 8 5mm on barrel scale and 31 divisions on thimble scale, the actual measurem ent will be :

8.8 mm 8.81 mm 8.79 mm 11.59mm A

292The lenght of the vernier scale of a metric vernier caliper 24/25 syst em is:

0.5 mm 1 mm 12 mm 49 mm C

293DTI (metric system) is designed to read a range of:

1 mm left or right

0.5 mm clockwise

0.5 mm counterclockwise

0.5 mm clockwise and 0.5 mm anticlockwise

D

294In bevel protractory one vernier scale division is equal to:

5 minutes. 15 minutes. 55 minutes. 115 minutes. A

295In screw pitch gauge (or profile gauge) the number of teeth per teeth per inch is marked on:

Tip of first blade

BodyTips of last blade

Each blade D

296 Limit gauges are used to determine:High limit dimension

Low limit dimension

Internal and external dimension

Internal dimension within specified limit

D

297The angle between the cutting edge and axis of the drill is called:

Clearence angle

Web angle Flute angle Cutting angle D

298For enlarging the size of hole and bushes,the reamer used is ;

Hand expanding reamer.

Shell reamer.Hand taper reamers.

Hand parallel reamers.

B

299Prior to drilling hole,to locate drill center punching is done by a ce nter punch having angkle of;

45 degree 90 degree 60 degree 120 degree B

300 Electro magnetic crack detection is applid to;All types of metals.

Fabric screen. Lead screen. Wooden screen. C

301While using ultrasonic flowdector air gap between the probe and the su rface under tests eliminated by;

Use of rubber padding

Use of rubber boots.

Applying oil.Clamping the probe tightly.

C

302In the order of corrodibility the least corrodable metal is;

Chromium Nickle. Alluminium. Erass. A

303 Light alloys and stainless steel are;

Susceptable to intercrystaline corrosion.

Not susceptable to corrosion,ht.

Susceptable to surface.

susceptable to corrosion due to galvanic action.

A

304To file concave surface and elongating circular opening, the standard section of file used is;

Round. Half round. Three square. Square. B

305 If the point of a scriber is blunt it is to be;Sharpened on oil stone.

Sharpenedon grindingwheelbutdippedintowatertimetotimetoprotect itstemper.

Sharpened by using a file to avoid over heating.

Discard the scriber and chage with a new one.

B

306 Surface plates are made from; Cast iron. Wrought iron. Pig iron. High carbon. A

307While using scribing the bent end of scribed should point;

Upwards. Downwards.Towards your right.

Towards your left.

B

308While using scribing block lines can be scribed paralled to the edge o f the table with the help of;

Straight end of the scriber.

Bent end of the scriber.

Marker piece. Dowels. D

309 Key seat rule is made of;

Low carbon steel hardened and tempered.

High carbon steel hardened and tempered.

Medium carbon steel case hardened.

Plain carbon steel annealed and normalised.

B

310 Fitters square is made of;Medium carbon steel hardened.

High carbon steel hardened and tempered.

Vanadium (blade) and mild steel (stock).

Spring steel and cast iron.

B

311The legs of the callipers are curved outwards at the extrimities is kn ow as;

Jenny callipers.

Out side callipers.

Inside callipers.common callipers.

C

312 Spanners used in restricted spaces is;Splined tube spanner.

Peg spanner.crow foot spanner.

Terry set. C

313

A metric micrometer having minus error 0.02mm when set to 7 5mm on bar rel scale and 13 divisions on thimble scale ,the actual measurement will be;

7.61mm. 7.63mm. 7.65. 7.67mm C

314If the spindle of micrometer is worn out ,the errour shown by the micr ometer should by ;

Subtraced from the reading.

Added to the reading.

Ignored.micrometer is not to be used.

D

315In external metricmeter of 25-50mm size, if the thimble is rotated for four complete turns from 'o'the reading will be;

25.04mm. 27mm 24.96mm 2.00mm D

316The minimum measurement that can be taken with collar with the largest extension rod of an internal metric micrometer is;

265mm. 285mm. 235mm. 325mm. D

317The smallmest size of extension rod avilable in a set of 50mm to 300mm metricinternal micrometer is;

50 mm to 100 mm.

50 mm to 65 mm.

60 mm to 75 mm.

50 mm to 75mm. D

318Diminishing resistance to fracture caused by fluctuating stresses is t ermed as;

Toughness Hardness Fatigue Brittlennes C

319The capacity of a material to return to its original diensions on the removal of distorting forces :-

Elasticity Conductivity Ductility Tenacity A

320The capacity of material to observe the energy in electrical range is called

Elasticity Tenacity Resilience Resistivity C

321The property of being permanently extended or flattened by hammering r olling or pressing without rupture is known as :-

Tenacity Malleability Softness Plasicity B

322The property of resisting breakage when subjected to bending sudden bl ow or twist is termed as;

Hardness Brittleness. Toughness. fatigue. C

323The resistance offered by material for deformation at the elastic state is

Strength Toughness Ductility Stiffness D

324The slow and progressive deformation of material over a period of time under a constant stress and elevator temperature is called

Conductivity Creep Plasticity Tenacity C

325A permissible range of dimensions of finished components provided to c overnunavoidable inaccuracies in manufacture is:

Allowance. Clearance. Tolerance. Variation. C

326The class of fit suitable for various type of moving parts is:

Driving fit. Running fit. Push fit. Force fit. B

327Type of fit suitable for detachable or locating parts is:

Force. Interference. Transition. Clearance. C

328The key fits into a key-way in the shaft and will transmit high power is:

Feather key.Flat saddle key.

Woodruff key. Gib headed key. D

329Colour of small stainless steel bult which has no recognised standard marking is:

Brown lacquer

Blue Green anodic Yellow lacquor A

330 Aluminium alloy nuts are identified by:

Washed face machined on one face of a nut

Washed face machined on both face of a nut.

Letter 'L'stamped on one side

Letter 'AA' stamed on one side

B

331To identify a brass nut of 9/16 inch BSF, left hand thread the code le tter marked on the face of the nut is;

PBL BPL LPB BLP A

332 The hot fluid chalk method is used where;

A small component can be removed.

A big component can be removed.

A small component can not be removed.

A big component can not be removed.

A

333What is the mixture used in cold fluid chalk test method of crak detec tion:

Mixture of methylated of fruit and french chalk.

Lubricating oil and french chalk.

Mix of kerosene and lubricating oil with french chalk.

Mix of trichlorethylene and lubricating oil with french.

A

334The flourescent solution remaining in the flows or cracks will reveal clearly as;

Bright lines or patches of light .

Dull red in colour with broken lines.

Thin black lines or bright patches.

Thin red lines with bright patches.

A

335 Hammers are classified by its ;

Weight and number stamped on the side.

Type and weight of the head in ounces.

Type and weight of the head in grammes.

Number stamped on the side of the head.

B

336A common grade file used for ordinary engineering work where finish is not important is;

Dead smooth.

Second cut. Bastard. Rough. C

337 The length of file is measured between;Shoulder to the tip of blade.

Full length.Shoulder and tang end.

Teeth cut portion end to end.

A

338To induce toughness to a new file process used is;

Pickling. Pinning. breaking in. Draw filing. C

339The property of resisting breakage when under the application of pulling force is known as

Elasticity Tenacity Ductility Conductivity B

340A plain carbon ateel with carbon content of 0 67% is;

Low carbon steel .

Medium carbon steel

Blister steel high carbon steel D

341Eliments added to steel to get greater strength,toughness and resistan e to fatigue is;

Chromium nickel Tungsten. Molybdenum. B

342Property induced by adding 3% of chromium to alloy steel is;

Strength Toughness HardnessHardness at high temperature.

C

343The element added with steel to get the great strength,greater resista nce to fatigue is

Cobalt Tungsten. chromium. Vanadium. D

344 'Y' alloy is used for making;Air craft structural parts.

Piston and cylinder heads.

Stressed skin of aircraft.

Rivts. B

345Indicate the false statement Modulation is used to

reduce the bandwidth

separate differing transmissions

ensure that intelligence may be transmitted over long distance

allow the use of practical antennas

346The modulation index of an AM wave is changed from 0 to 1 The transmitted power is:-

Unchanged Halved DoubledIncreased by 50%

347In communication system noise is most likely to affect the signal

At the transmitter

In the information source

In the channelAt the destination

348 In a broadcast Superheterodyne receiver, the

local oscillator operates below the signal frequency

Mixer input must be tuned to the signal frequency

Local oscillator frequency is normally double the IF

RF amplifier normally works at 455 KHz above the carrier frequency

349One of the following cannot be used to remove the unwanted sideband in SSB This is the :-

Filter systemPhase shift method

Third MethodBalanced Modulator

350To secure maximum strength and hardness to duralumin which have been a nnealed must be;

Age hardened.

solution treated.

Precipitation treated

Anodised. B

351 Duralmin tubing should be solution treated;Prior to bending or flaring.

After bending or flaring.

Prior and after bending or flaring.

only on rebending or flaring.

c

352 What type of heat treatment is given to brass; Hardening.Case hardening.

Annealing. Blueing. C

353When alumium alloy is quenched from high temperature the excess copper comes out of solution This is known as;

Decoppering. Annealing. Evaporation. Precipitation D

354Advantage of case hardening by nitriding process is;

Retention of hardness at low temperature.

Retention of hardness at high temperature.

The depth of hardened case may be 0.08"

It is easy and cheap.

B

355Which of the following process does not require quenching after case h ardening;

open hearth process.

Box Nitriding. cyanids. C

356

If a body is stressed beyond it elastic limt, the strain thus produced will not retreat completely on removal of force This residual or rema ining strain is called;

Sheer stress. Tensile strain. permanent set. Tensile stress. C

357Electro-magnetic crack detection method is suitable for the components made of ;

Magnesium alloy.

nickle chromium.

ferrous metal and can be magnetised.

Non ferrous metals;

C

358Non distructive tests of crack detection are preferred because they;

Are cheaper and faster.

Can be used easily.

Do not damage the component.

Can be used at any part of the component.

D

359The flourescent solution remaining in the flows or cracks will reveal clearly as;

360When testing a component for crack detection by flourescent dye penetr ant method,the flows will;

Reveal as violet lines or patches under ultra violet rays.

Show bright lines or patches under ultra violet rays.

reveal bluish lines or patches under ultra violetrays.

Show thin black lines or patches under ultra vilot rays.

B

361While performance x ray crack detection the operations are protected f rom stray radiation by;

Metal screen Fabric screen. Lead screen. Wooden screen. C

362Lift is obtained at the expense of a certain amount of horizontal forc is known as:

Thrust Weight DragForward movement

C

363 At the critical angle of attack, the flow of air Burbling Curling Knurling Rolling D

from top surface of aerofoil becomes turbulent which is termed as

364The point on the main plane at which the boundary layer changes from laminar flow to the turbulent flow is

Stagnation point

Transition point

Critical point Separation point B

365Drag which varies inversely to the square of the indicated air speed i

Profile drag Wing drag Induced drag Interference drag C

366If the aspect ratio of wing is higher, the effect of it will:

Increase the induced drag

Decrease the induced drag

Keep the aircraft stable while landing

Keep the aircraft stable while taking off

B

367 If the aspect ratio is higher, the induced drag is: Higher Lower Constant Increased B

368Lift is obtained at the expense of a certain amount of horizontal forc is known as:

Thrust Weight DragForward movement

C

369 The principal factor affecting induced drag is:Plan form of the wing

Shape of fuselage

Design of the tail plane

Type of control surfaces

A

370The point on the main plane at which the boundary layer changes from laminar flow to turbulent flow is:

Stagnation point

Transition point

Critical point Separation point B

371The value of a resistor creating thermal noise is doubled The noise power generated is therefore :-

halved quadrupled doubled unchanged

372Indicate the noise whose source is in the category different from that of the other three

Solar noise Cosmic noiseAtmospheric noise

Galactic noise

373In a low level AM system amplifier is following the modulated stage must be

Linear devices

Harmonic devices

Class C amplifier

Non linear devices

374If the carrier of a 100% modulated AM wave is suppressed the percentage power saving will be

50 150 100 66.6

375One of the following is not a useful quantity for comparing the noise performance

Input noise voltage

Noise temperature

Equivalent noise temperature

Noise figure

376A carrier is simultaneously modulated by the two Sine waves with the modulation indices of 0 3 and 0 4; the total modulation index is

1

cannot be calculated unless the phase relation s are known

0.5 0.7

377 In the spectrum of frequency modulated wave

The carrier frequency disappears when the modulation index is large

The amplitude of any sideband depends on the modulation index

The total number of sidebands depends on the modulation index

The carrier frequency cannot disappear

378A pre-emphasis circuit provides extra noise immunity by

boosting the bass frequencies

amplifying the higher audio frequencies

pre-amplifying the shole audio band

converting the phase modulation to FM

379Indicate which one of the following is not an advantage of FM over AM

better noise immunity is provided

lower bandwidth is required

the transmitted power is more useful

less modulating power is required

380Indicate the false statement regarding the advantage of SSB over double sideband, full carrier AM

More channel space is available

Transmitter circuit must be more stable, giving better reception

The signal is more noise resistant

Much less power is required for the same signal strength

381The most commonly used filters in SSB generation are

Mechanical RC LC Low-pass

382 In a radio receiver with simple AGC

an increase in the signal strength produces more AGC

the audio stage gain is normally controlled by the AGC

the faster the AGC time constant, the more accurate the output

the highest the AGC voltage is produced between stations

383The local oscillator of a broadcast receiver is tuned to the frequency higher than the incoming frequency

To help the image frequency rejection

To permit easier tracking

Because otherwise an intermediate frequency could not be produced

To allow adequate frequency coverage without switching

384 If the intermediate frequency is very high (indicate the false statement)

Image frequency rejection is

The local oscillator need not be

The selectivity will be poor

Tracking will be improved

very goodextremely stable

385One of the following cannot be used to demodulate SSB

product detector

diode balanced modulator

bipolar transistor balanced modulator

complete phase shift generator

386Distance near The skip distance should be used for sky wave propagation

to avoid tilting

to prevent sky-wave and upper ray interference

to avoid the faraday effect

so as not to exceed the critical frequency

387Frequencies in the UHF range propagate by means of

Ground waves

Sky waves Surface waves Space waves

388The ground wave eventually disappears, as one moves away from the transmitter, because of

interference from

loss of line of sight conditions

maximum single hop distance limitation

tilting

389To provide two or more voice circuits with the same carrier, it is necessary to use

ISB CarrierSSB with pitot carrier

Lincompex

390 In EM waves polarization iscaused by reflection

is due to the transverse nature of the waves

results from longitudinal nature of the waves

is always vertical in an isotropic medium

391 The emitter of a transistor is dopedto a lesser extent than collector

depends upon specification

heavily

so that most of emitter injected electron ea go to the base of transistor.

392 Basic drawback with base bias circuit is

the base and collecter power supplies are same.

base and collecter resistors are returned to collector supply.

it cannot be used in switching circuits.

Beta dc varies with current and temperature.

393 In the collector feedback biasthe Beta dc generally varies.

the base resistor is grounded

the base resistor is returned to the collector than to power supply.

difficult to set a stable Q-point.

394 Amplification factor for triode is given by = rp/gm = gm.rp = gm/rp+gmNone of the above.

395 The transistor used in power amplifier havelarge current ratings

large voltage ratings

large power dissipating capacity

neither of these characteristics

396The input and output signals of a CE amplifier are

Always equal Out of phaseAlways negative

In phase

397 (0 85) in binary is 101010 110110 011111 111100

398A 1’s complement 4 bit paralles bibary subtractor requires ;

3 full adders and one half ader

4 full adders4 full subtractors

3 full subtractors and one half subtractors

399 A Flip Flop is aAstable Multivibrator

Bistable Multivibrator

Monostable Multivibrator

None of the above

400In a Transistor if the base resistance is shorted it will be :

Saturated Cut off DestroyedNone of the above

401The transistor of Class B push pull Amplifiers are biased at :

Cut offCenter of DC load line

SaturationBiasing is fixed by manufacturer

402 The varactor is usually F Biased R Biased UnbiasedIn the breakdown region

403For nomal operation of the transistor the collector diode has tobe

F B R B Non conductingOperating in breakdown region

404If an amitter follower has V CEQ = 5V, ICQ = mA and re = 1 K the maximum peak to peak unclipped output is

1V 2V 5V 10V

405The common grade of files used to give good finish quickly and has about 40 teeth per inch is called:-

Rough Bastard Second cut Smooth

406 Drills are classified by :-Type, material and size

Type, cut, width & blade

Length, type and material

Size , length and cut

407The material used to make precision instrument is known as :-

Stainless steel

INVAR steel Cast IronHigh Carbon steel

408 The term " Hand brace" is associated with:- Drilling Filing Screwing Tinning

409The property whereby a metal can be drawn out into a wire without cracking is known as :-

Fusibility Plasticity Ductility Tenacity

410These tools are used for gripping or cutting purpose :-

Ring Spanners

Lead Hammers

Pliers Dies

411The metal which is having the properties of soft, plastic, malleable and acid resistant is :

Zinc Lead Aluminum Copper

412It is a process of shaping of metals by pressure or by hammer in a die of required shape is called:-

Stamping Forging Stretching Swaging

413The process by which a new file is first used on soft metal is called :-

Breaking in Pickling Safe edge Pinning

414In metric system Hacksaw blade length is measured from :-

Centre to centre

Edge to edgeCentre to handle

centre to edge

415 The range of Micro-Meter is :- 35mm 45mm 25mm 15mm

416To find out the appropriate center of round bar, the clipper used is :-

Even leg clipper

utside clipper Inside clipper Odd leg clipper

417In lead acid battery( charged state ) electrolyte used is

Dilute H2SO4

Concentrated sulphuric acid

KOH Unaffected

418In Ni-Cd battery( charged state ), positive plate used is

PbO2 PbSO4 Ni2O2 Cd

419In lead acid battery( discharged state ), negative plate used is

PbO2 PbSO4 Ni(OH)2 Cd(OH)2

420In lead acid battery( charged state ) negative plate used is

PbO2 PbSO4 Ni(OH)2 Cd(OH)2

421 (0 85) in binary is 101010 110110 011111None of the above

422In any group If 1’s are completely overlapped by other grouping, the group is called ;

Overlap IrredundantRedundant and should be eliminated

None of the above

423A 1’s complement 4 bit parallel binary subtractor requires;

3 full adders and one half adder

4 full adders4 full subtractors

3 full subtractors and one half subtractors

424 A Flip Flop is aAstable Multivibrator

Bistable Multivibrator

Monostable Multivibrator

None of the above

425In a Transistor if the base resistance is shorted it will be :

Saturated Cut off DestroyedNone of the above

426 The colour of corrosion on steel is Brown Black Gray Reddish brown

427The process of shaping hot metals by means of hammer and presses in

Stamping Forging spinning drawing

428Aircraft parts like oleo legs and ball bearing are plated with

Nickel chromium Zinc Cadmium

429 The least count of matric vernier caliper is 0.001 " 0.01 mm 0.02 mm 1 mm

430The purpose of standard wire gauge is to measure :-

(a) The clearance between two surfaces.

(b) The size of wires and sheets.

(c) The inside and outside radius of the component.

(d) Slot widths and caliper settings.

431The process of using a new file first on soft metal is called :-

(a) Draw filing.

(b) Pinning. (c) Pickling. (d) Breaking in.

432Hacksaw blade may loose its correct temper if it is :-

(a) Loosely fitted.

(b) used with more pressure.

(c) Cutting at faster rate.

(d) Fitted too light.

433To safe guard the finished surface of job against damage by the teeth of the vice jaws, clamps used are of :-

(a) Copper, steel and magnesium.

(b) Copper, lead and aluminium.

(c) copper, iron and aluminium.

(d) Silver foil, lead and aluminium.

434The plier suitable for holding screw heads and nuts :-

(a) Bernard. (b) Hellerman. (c) Flat nose.(d) Slip joint plier.

435Material used for insulation between commutator segment is :-

(a) Micanite. (b) Paxolin. (c) Mica. (d) Ebonite.

436 Low carbon steel is having carbon content of :-(a) 0.75% to 1.5%.

(b) 0.25% to 0.75%.

(c) 0.25% to 1.5%.

(d) Upto 0.25%.

437The capacity of an organic material to get deform or change the shape under heat and pressure is :-

(a) Elasticity. (b) Resilience. (c) Plasticity. (d) Extrusion.

438While soldering LDRs and thermisters the temperature should not exceed above

(a) 350 deg C.

(b) 250 deg C. (c) 200 deg C. (d) 150 deg C.

439If inter-crystalline corrosion is detected on aircraft part, it should be :-

(a) Electroplated.

(b) Replaced.(c) Covered with enamel paint.

(d) Given anodic treatement.

440 Files, thin bladed of fine grade made out of Equalizing Geneva file Rasp file Swiss file A

special steel, hardened and tempered are: file

441 Pin vice is used for holding: Square jobs Small rodsBigger jobsBigger rods

Bigger rods B

442 Needle files are used for:Making hole in the needle

Filing in odd places

Pierce design work in thick metals

Pierce design work in thin metals

D

443 Wardling files are used for:Filing the electrical contacts

Pierced design work

Making key and key ways

For curved surface

C

444 Fine point pliers are used for:

Removal of parts from restricted place

Watch springHolding small rods and pins

Holding delicate parts

D

445Bolley set screw drivers are usually available in:

8 different sizes

3 different sizes

4 different sizes 5 different sizes C

446The metal having crystalline structure, becomes very hard when chilled :-

(a) Pig iron.(b) Wrought iron.

(c) Steel. (d) Cast iron.

447In a twist drill the narrow strips along the cutting edge of the blutes is known as :-

(a) Shank. (b) Lands. (c) Body. (d) Axis.

448One complete turn of the thimble of the micrometer gives a travel of :-

(a) 0.5 cm. (b) 0.1 cm. (c) 0.5 mm. (d) 0.1 mm.

449 Dividers are classified by :-(a) The materials of the legs.

(b) The distance between the legs.

(c) The perimeter of the arcs and circles.

(d) the length of the legs.

450Process of eliminating errors in computer program is known as:-

De bugging Rearranging Eliminating Oration A

451 First type of adding machine was invented by:- John NapierCharles Babbage

Blaise Pascal Dore Fiet C

452 Hybrid computer is a :Special purpose computer

Combination of analog and digital computer

General purpose computer

Digital computer A

453Name the computer which doesn't compute directly with the number:

Mini computer

Micro computer

Digital computer

Analog computer A

454 Digital computer is used for :Business and engineering calculation

To solve specific Programme

To perform variety of a operation

To solve navigational problem

A

455 Flip flops are clocked to achieve :Synchronization

OptimizationMore propagations time

'O' as output of all flip flop

A

456 The number 17 octal is equivalent to binary : 111 1110 10000 1111 D457 Which of the following is not octal number: 19 7 15 101 A

458 Junction diode is a :Bipolar device

Constant voltage device

Unipolar deviceConstant current device

A

459 A register stores:One word of data

A byte One instruction 4 bits data A

460 To feed fresh program in the memory, use: New List Write fresh Print A461 Not gate is known as: Converter Inverter Rectifier Amplifier B

462 Computer hardware usually refers to:

Hard metallic component of a computer

Various associated program

CPU

Central processor input/output devices and backing storage

A

463The JK Flip flop out put changes with each trigger when:

Both J and K are zero

J is zero k is one

K is Zero and J is one

J and K are both on

D

464 Which of the statement is correct:NAND gate = Bubbled AND gate

NOR gate =Bubbled OR gate

Bubbled OR gate = NAND gate

AND gate = OR and NOR gate

C

465In high level language, the source program is translated into object program with the help of

Computer Converter Compiler Translator C

466When an input electrical signal A=10100 is applied to a NOT gate its output signal is a

01011 10101 10100 00101 C

467 Truth table of a logic functions:Summaries its output value

Tabulates all its input conditions

Displays all its input/output possibilities

Is not based on the logic algebra

C

468 A static memory is one that

Is capable of storing binary information indefinitely

Requires periodic restoration of information

Is volatileHas destructive read out

A

469Semi conductor memory in computer is based on

Magnetic circuit operation

Transformer operation

Transistor operation

Non magnetic circuit operation

C

470 Half adder is called so because it :

Can add half the bits in a binary number

Works for half time only

Performs addition in two halves

Can not accept a carry from previous additions

D

471 The only function of a NOT gate is to: Stop a signalRe-complement a signal

Invert an input signal

Act as a universal gate

C

472In a half adder when the input signal A=1 and B=1 the:

Sum =1,carry=0

Sum =1, carry =1

Sum=0,carry=0 Sum =0,carry=1 D

473 A full adder consists of:

Two half adders cascaded together

Two half adders and one OR gate

Two half adders and one AND gate

Two NAND gates

B

474The type of memory, which provides very large storage capability with

Dynamic memory

Magnetic disc memory

Magnetic memory

Bi polar memory B

475The first generation computer was introduced with:

Solid state transistors

Vacuum tubes Chips IC's B

476Second generation of computer started with the introduction of transis

1950 1958 Early 60 Late 70 C

477 John Napier inventedFirst type adding machine

Computograph

Logarithmic table

Complex computer

C

478The input devices handles the flow of information to the computer

Prior to the execution of the program

At the time of the execution of program

After the execution of the program

When ever the floe of information are required

A

479 Control unit process the data using:Input and out put unit

ALALU with the help of memory unit

Only input unit B

480 2's complement of 1000 is: 1000 001 1110 0111 A

481Binary equivalent of decimal number 26 base 10 is:

10110 base 2

11010 base 2 10111base 2 11001 base 2 B

482The decimal equivalent of binary 101.11 base 2 is:

5.75 6.75 3.5 9.75 A

483 In computer the data are processed by : Memory unitArithmetic logic unit

Control unit Out put section C

484The instruction written in binary form is known as :

High level language

Symbolic language

Computer language

Machine language

D

485A Programme in any language above machine language is called:

A source program

An object program

Derived program

System program A

486A binary number that is equivalent to octal number 61 is

111000 base 2

101010 base 2

11000 base 2 110110 base 2 C

487 General purpose high-level language is:

Cobol, FORTRAN. Lisp and basic

D8 base Multiplan, pli and ALGOL

FORTRAN, basic, pli ,ALGOL and d base

Cobol, lisp, word processor and multi plan

C

488When 10111 base 2 is added to 101111 base 2 the result is

1000110 base 2

1001001 base 2

1100100 base 2

1010100 base 2 A

489 The binary equivalent of 12.5 base 10 is1100.01 base 2

1100.001 base 2

1010.01 base 2 1100.1 base 2 D

490The process in which heat is transmitted from one point to the other

Conduction Convection Radiation Evaporation A

491If the dry bulb and wet bulb temperature are known, the parameter can

Dew point of the air

Relative humidity

Grains of moisture

Dry bulb temperature

B

492The process in which the heat is transferred from one place to other

Conduction Convection Radiation Evaporation C

493Transfer of heat from one point to another is carried out by:

Conduction, convection and radiation

Transformation

Boiling and heating

None of the above

A

494The process in which heat is transmitted from one place to another pl

Conduction Convection Radiation Evaporation B

495 T' Square is used for:Drawing horizontal line

Drawing vertical line

Drawing curved line

Drawing semi circular line

A

496The Acronym 'CAD' in engineering drawing represents:

Computer aided drawing

Computer aided drafting

Computer aided design

Computer aided dimensioning

C

497Colour of paper usually used in Engineering Drawing is:

Black Blue Brown White D

498A new bush of correct dimension of correct hole to be fixed in the plate while re cond

Force fit Driving fit Push fit Running fit C

499 If the pivot is deeply pitted, do only: Stoning. LappingLapping and grinding

Stoning and lapping.

D

500During refueling the danger of sparking due to static electricity is avoided by:

Bonding ScreeningWeather proofing

Switching off the aircraft battery

A

501During refueling or defuelling of an aircraft, there should not be any naked flame or

10 ft. 200 ft. 100 ft. 50 ft C

502The correct replacement of an item, which has previously been removed, is termed as:

Out fit Correct fit Refit Fit C

503 The fire extinguisher for electric fire is:Normal extinguisher

Water methanol extinguisher

Foam extinguisher

Pyrene extinguisher

D

504 Workman errors are caused due to lack of: Knowledge Skill Experience All the above D

505The weather proofing material used for push switches and terminal lugs are:

PVC conduitCotton tape, rubber tape

Weather proofing caps

Washers and gaskets

C

506The disturbance set up by the radio interference originates as radiation of

High tension discharge

High frequency AC

Sparking at contacts

Electromagnet waves at radio frequencies

D

507When under carriage is in the locked UP position, the indication is :

All red lights are ON

All lights are OFF

All green lights are ON

All green lights starts flashing

B

508 The 200 Hrs servicing comes under : Minor star Intermediate Major Minor A

509The working voltage of a capacitor to which a.c. or pulsating d.c. is applied should be

the same as or greater than the applied voltage

at least 50 percent greater than the applied voltage

1.41 times the applied voltage

707 times the applied voltage

B

510If a circuit contains 10 ohms of resistance, 20 ohms of inductive reactance, and 30 ohms of capacitive reactance, it is said to be

inductive impedence reluctanceinductive reactance

D

511An increase in which of the following factors will cause an increase in the inductive reactance of a circuit?

Inductance and frequency

Capacitance and voltage

Resistance and voltage

resistance and capacitive reactance.

A

512In an alternating current circuit the effective voltage

is equal to the maximum instantaneous voltage

is greater than or less than the maximum instantaneous voltage

may be greater than or less than the maximum instantaneous voltage

is less than the maximum instantaneous voltage

D

513The amount of electricity a capacitor can store is directly proportional to

the distance between the plates and inversely proportional to the plate area

the plate area and is not affected by the distance between the plates

the plate area and inversely proportional to the distance between the plates

the distance between the plates and is not affected by the plat area

C

514

A transformer with a step-up rate of 0 to 1 has a primary voltage of 24 volts and a secondary amperage of 0.20 ampere. What is the primary amperage (. . . Losses)?

1 ampere 4.8 amperes 0.40 ampere

cannot be determined from the information given

A

515What is the capacitive reactance in ohms of the parallel a.c. circuit in Fig. 1?

5 20 10 15 A

516What is the phase relationship between the current and voltage in an inductive circuit?

the current lags the voltage by 0 degree

The current lags the voltage by 90 degree

the current leads the voltage by 90 degree

the current leads the voltage by 0 degree

B

517 Current flow is measured in terms of amperes volts watts electron flow A

518which of these following will required most electrical power during operation? (1hp = 745 watts)

A 12 volt motor requiring 8 amperes

four 30 watt lamps in a 12 volt parallel circuit

two lights requiring 3 amperes each in a 24 volt parallel system

a 1/10 hosepower, 24 volt meter which is 75 percent efficient

C

519

How much power must a 24 volt generator furnish to a system which contains the following loads? UNIT RATING onemotor(75percentefficient).. 1/5hpthree position lights .. 20 watts each oneheatingelement .. 5amp oneanticollisionlight .. 3 amp(1hp=746 W)

18.75 watts 402 watts 385 watts 450 watts D

520

If a unit in a 28 volt aircraft electrical system has a resistance of 10 ohms, how much power will it use?(1 hp = 746 watts)

280 watts 7.84 watts 78.4 watts 28 watts C

521

A 12 volt electric motor has 1.000 watts input and 1 horsepower output. Maintaining the same efficiency, how much input power will a 24 volt, 1 horsepower electric motor require?(1 hp = 746 watts)

1,000 watts 2,000 watts 500 watts

cannot be determined from the information given

A

522

How many amperes will a 28 volt generator be required to supply to a circuit containing five lamps in parallel, three of which have a resistance of 6 ohms each and two of which have a resistance of 5 ohms each?

1.11 amperes

1 ampere 0.9 ampere 25.23 amperes D

523The wattage rating of a carbon resistor is determined by

a gold band a silver bandthe size of the resistor

a red band C

524The potential difference between two conductors which are insulated from each other is measured in

ohms volts amperes coulombs B

525

The ratio of the true power to the apparent power in an a.c. electrical circuit is called the power factor. If the true power and the power factor of a circuit are . .. . , the apparent power can be determined by

multiplying the true power times 100 times the power factor

multiplying the power factor times 100 times the true power

dividing the true power times 100 by the power factor

dividing the power factor times 100 by the input power

C

526

A 24 volt source is required to furnish 48 watts to a parallel circuit consisting of four resistors of equal value. What is the voltage drop across each resistor?

12 volts 6 volts 3 volts 24 volts D

527When calculating power in a reactive or inductive a.c. circuit, the true power is

more than the apparent power

more than the apparent power in a reactive circuit and less than the apparent power in an inductive circuit

less than the apparent power in a reactive circuit and more than the apparent power in an inductive circuit

less than the apparent power

D

528Determine the power furnished in watts by the generator of the circuit in fig 2.

288 watts 24 watts 48 watts 12 watts C

529Concerned to Fig (3), all the resistance are of 1000 ohms. Which among the above give an equivalent resistance of 1500 ohms?

a b c d C

530If resistor R3 is disconnected at terminal D, what will the ohmeter read? (Fig. 4)

infinite resistance

0 ohm 10 ohms 20 ohms A

531With an ohmmeter connected into the circuit as shown, what will the ohmmeter read in fig 5?

20 ohmsinfinite resistance

0 ohm 10 ohms D

532In Fig 6 how many instruments (meters & ammeters) are installed correctly?

three one two four C

533

The secondary voltage of a transformer depends upon the efficiency of the transformer and the rate of the number of turns in the primary winding to the

number of turns in the secondary winding

amount of current flowing in the primary winding

material from which the core is constructed

distance separating the windings

A

534The correct way to connect a test voltmeter in a circuit is

in series with a unit

between source voltage and the load

in parallel with a unit

to place one lead on either side of the fuse.

C

535

A cabin-entry light of 10 watts and dome light of 20 watts are connected in parallel to a 30 volt source. If the voltage across the 10 watt light is measured it will be

one third of the input voltage

twice the voltage across the 20 watt light

equal to the voltage across the 20 watt light

half the voltage across the 20 watt light

C

536What device is used to measure the very high insulation resistance of electric cables?

high-resistance voltmeter

moving iron-yane meter

megger multimeter C

537Before troubleshooting an electrical circuit with a continuity light, the circuit must be

connected to the aircraft battery

connected to the aircraft generator

isolatedconnected to an external source of power

C

538A 14 ohm resistor is to be installed in a series circuit carrying 05 ampere. How much power will the resistor be required to dissipate?

at least .70 milliwatt

at least 35 milliwatts

less than .035 watt

less than .70 milliwatt

B

539 What is the maximum number of electrical wire terminals that can be installed on one stud?

four terminals per stud

three terminals per stud

two terminals per stud

as many terminals as you can stack on and

A

still havetherequirednumberofthreadsshowing through the nu

540What would be the measured voltage of the series circuit in Fig. 7 between terminals A and B?

1.5 V 3.0 V 4.5 V 6.0 V D

541 the efficiency of power in an a.c. circuit is expressed by what term?

volt-amperes true power power factor apparent power C

542 The current in a 60-watt, 120 volt electric light bulb is

0.8 amp 2 amp 1/3 amp 1/2 amp D

543 which of the following will require the most electrical power? (note: 1 hp = 746 watts)

four 30 watt lamps arranged in a 12 volt paralle circuit

a 12 volt landing gear retraction motor which requires 8 amperes when operating the landing gear

a 1/10 horsepower, 24 volt motor which is 75 percent efficient

a 24 volt anticollision light circuit consisting of two light assemblies which require 3 amperes each during operation

D

544 What unit is used to express electrical power? Coulomb Volt watt ampere C545 What is the operating resistance of a 30 watt

light bulb designed for a 28 volt system?30 ohms 1.07 ohms 26 ohms 0.93 ohm C

546 Which of the following statements is correct when made in reference to a parallel circuit?

the current is equal in all portions of the circuit

the current in amperes is the product of the EMF in volts times the total resistance of the circuit . . . Ohms

the total current is equal to the sum of the currents through the individual branches of the circuit

the current in amperes can be found by dividing the EMF in volts by the sum of the resistors in ohms

C

547 Diodes are used in electrical power circuits primarily as

current eliminators

circuit cutout switches

rectifiers power transducer relays

C

548 If three resistors of 3 ohms, 5 ohms and 22 ohms are connected in series in a 28 volt circuit, how much current will flow through the 3 ohm resistor?

9.3 amperes 1.05 amperes 1.03 amperes 0.93 amperes D

549 A good conductor of electricity is a material through or along which electrons move freely

whose protons are all on the outside

that contains few electrons

through or along which protons move freely

A

550 A circuit has an applied voltage of 30 volts and a load consisting of a 10 ohm resistor in series with a 20 ohm resistor. What is the voltage drop across the 10 ohm resistor?

15 votls 10 volts 20 volts 30 volts B

551 find the total current flowing in the wire between points C and D in Fig 8

5.0 amperes 2.4 amperes 3.0 amperes 0.6 amperes C

552 find the voltage across the 5 ohm resistor using the drawing in Fig 8

2.4 volts 12 volts 20.4 volts 24 volts D

553 Find the total resistance of the circuit in fig 9 16 ohms 10.4 ohms 2.6 ohms 21.2 ohms D554 Which of the following is correct in reference to

electrical resistance?two electrical devices will have the same . . . .resistance if they are connected in series as they will have if connected in parallel

if one of three bulbs in a parallel lighting . . . . .removed, the total resistance of the circuit will become greater

an electrical device that has a high resistance will have more power than one with a low resistance with the same applied voltage

a 5 ohm resistor at a 12 volt circuit will use less current than a 10 ohm resistor in a 24 volt circuit.

B

555 An electric cabin heater draws 25 amps at 110 volts. How much current will flow if the voltage is reduced to 85 volts?

19.3 amps 44.0 amps 4.4 amps 1.93 amps A

556 Determine the total current flow in the circuit in Fig. 10

0.2 amp 1.4 amps 0.4 amp 0.8 amp B

557 The total resistance of thecircuit in Fig 11 is 25 ohms 35 ohms 37 ohms 17 ohms D558 A 48 volt source is required to furnish 192

watts to a parallel circuit consisting of three resistors of equal value. What is the value of eachresistor?

36 ohms 4 ohms 8 ohms 12 ohms A

559 Which is correct concerning a parallel circuit? total resistance will be smaller than the smallest resistor

total resistance will decrease when one of the resistances is removed

total voltage drop is the same as the total resistance

total amperage remains the same, regardless of the resistance

A

560 The voltage drop in a conductor of known resistance is dependent on

the voltage of the circuit

the amount and thickness of wire insulation

only the resistance of the conductor and does not change with a change in either voltage or amperage

the amperage of the circuit

D

561 An electric motor malfunctions causing it overheat, which will cause an incorporated thermal switch to

prevent an open circuit

break the circuit

close the circuit break the circuit when cooled

B

562 In Fig 12, the equivalent resistance of the circuit is 20 ohms.Then the value of R1is

40 Ohms 80 Ohms 120 Ohms 240 Ohms A

563 In Fig 12, the equivalent resistance of the circuit is 20 ohms. Then the value of R2 is

40 Ohms 80 Ohms 120 Ohms 240 Ohms B

564 What would be the effect if the PCO relay in Fig 13 failed to operate when the left hand tank was selected?

The fuel pressure crossfeed valve would not open

the fuel tank crossfeed valve would open

the fuel tank crossfeed valve open light would illuminate

the fuel pressure crossfeed valve open light would not illuminate

D

565 The TCO relay in Fig 13 will operate if 24 VDC is applied to the bus and the fuel tank selector is in the

right hand tank position

crossfeed position

left hand tank position

normal position B

566 With power to the bus and the fuel selector switched to the right-hand tank (see Fig 13) how many relays in the system are operated?

three one two four A

567 When electrical power is applied to the bus (Fig 13) which relays are engaged?

PCO and TCC

PCC and TCC TCC and TCO PCO and PCC B

568 Energize the circuit with the fuel tank selector switch selected to the left hand position. Using the schematic in Fig 13, identify the switches that will change position

5,11,12,13,15,9,10

5,6,3,7,11,13 5,6,11,15,12,13 5,7,11,15 C

569 In Fig.18 the equivalent resistance of the circuit is 20 ohms. Then the value of R3 is

40 Ohms 80 Ohms 120 Ohms 240 Ohms C

570 Which symbol in Fig 19 represents a variable resistor?

C A B D A

571 If an inspection discloses that a considerable amount of acid from a lead-acid battery has been spilled in the general area of the battery compartment, which of the following procedures should be followed?

neutralize the spilled battery acid by applying sodium bicarbonate, or sodium borate dissolved in water to the affected area followed by a water wash

apply sodium bicarbonate in powder form to the affected area

apply water to the affected area until the spilled battery acids turn a cloudy white

wipe the affected area with an oil-soaked cloth.

A

572 A fully charged lead-acid battery will not . . .until extremely low temperatures are reached because

the acid is in the . . .thereby increasing the specific gravity of the solution

most of the acid is in the solution

the increased internal resistance generates sufficient heat to prevent . . . .

gases which act as an insulator are always present above the solution

B

573 What determines the amount of current which will flow through a battery while it is being charged by a constant voltage source?

the number of cells in the battery

the total plate area of the battery

the state of charge of the battery

the ampere hour capacity of the battery

C

574 when installing batterieson a constant current battery charger it is important to know that batteries of

more than one voltage rating may be connected in series and charged at

more than one voltag rating may be connected in parallel and charged at the

only one voltage rating may be connected in series and charged at the

only one voltage rating may be connected in parallel and charged at the same time

A

the same time

same time same time

575 Aircraft batteries are usually rated according to voltage and ampere-hour capacity. A 35 ampere-hour battery rating based on the 5-hour discharge rate, indicates

the battery will supply a current of 7 amperes for 5 hours

the battery will not become discharged in less than 5 hours

a battery discharge rate of 35 amperes must not be continued for more than 5 hours

the battery will supply a current of 35 amperes for 5 hours

A

576 Some aircraft use more than one battery to increase the power available for starting and for operating emergency loads. How are the batteries connected so that the output power will increase but the voltage will remain the same?

by connecting the batteries to separate loads

it is not possible

by connecting the batteries in parallel

by connecting the batteries in series

C

577 What is the rated voltage-per-call of a nickel-cadmium battery?

1.30 volts 2.00 volts 2.25 volts 1.55 volts D

578 Which of the components in fig 15 is a potentioneter?

D E C M C

579 In Fig 14, what electrical symbol is represented at E?

Fixed capacitor

fixed resistor variable resistor variable capacitor

D

580 When the landing gears are up and the throttles are retarded (see Fig 15) the warning horm will not sound if an open occurs in wire

no 4 no 2 no 9 no 10 A

581 The control valve switch should be placed in the neutral position when the landing gears are down (see Fig 15) to

permit the test circuit to operate

Provide a ground for the red light

prevent the warning horn from sounding when the throttles are closed

remove the ground from the green light

C

582 Using Fig 16 under which condition will a ground be provided for the warning horn through both gear switches when the throttles are closed?

right gear up and left gear down

anytime the gears malfunction

both gears up and the control valve out of neutral

left gear up and right gear down

D

583 When the throttles are retarded with only the right gear down (see Fig 16) the warning horn will not sound if an open occurs in wire

no. 5 no. 13 no. 8 no. 6 A

584 Schematic diagrams indicate the location of individual components in the aircraft

with aircraft station numbers of each component

on the title block by federal stock number

with respect to each other within the system

with detail drawings of each component

C

585 when referring to an electrical circuit diagram, what point is considered to be at zero voltage?

the ground reference

the current limiter

the fuse the switch A

586 Trouble-shooting an open circuit with a voltmeter as shown in this circuit (see Fig 17) will

permit current to flow and illuminate the lamp

create a low resistance path and the current flow will be greater than normal

restrict current flow and no voltage will appear on the voltmeter

permit the battery voltage to appear on the voltmeter

D

587 A battery containing six lead-acid cells connected in series (2.1 volts per cell) has a terminal voltage of 10 volts when delivering 2 amperes to a load. What is the internal resistance of the battery?

1.3 ohms 2.6 ohms 5.0 ohms 6.3 ohms A

588 The electrolyte used in the nickel-cadmium battery is a

potassium hydroxide solution

hydrochloric acid solution

sulfuric acid solution

potassium peroxide solution

A

589 Most aircraft storage batteries are rated according to

open-circuit voltage and closed- circuit voltage

voltage and ampere hour capacity

the maximum number of volt-amperes (power) the battery can furnish to a load

battery voltage and volts per call

B

590 (I) The electrolyte in a nickel-cadmium battery acts as a conductor(2) The electrolyte in a nickel-cadmium battery provides an insulator between the plates.Regarding the above statements, which of the following is true?

only no 1 is true

only no 2 is true

both no 1 and no 2 are true

neither no 1 nor no 2 is true

A

591 Which of the following is an indication of Light low toxic and heat or burn D

improperly torqued cell link connections of a nickel-cadmium battery?

spewing at the cell caps

temperature in the cells

corrosive deposits of potassium carbonate crystals

marks on the hardware

592 What is the most probable cause of an excessive amount of potassium carbonate formation on a nickel-cadmium battery?

battery overcharging

good battery ventilation

diluted electrolyte solution

high internal resistance in the battery

A

593 when should water be added to a nickel-cadmium battery?

3 to 4 hours after the charging cycle is completed

before starting the charging cycle

during the charging cycle

immediately after the charging cycle is completed

D

594 The electrolyte of a nickel-cadmium battery is the lowest when

the battery is being charged

the battery is fully charged

the battery is in a discharged condition

the battery is under load condition

C

595 What is the cell voltage of a fully charged . . . . .nickel-cadmium battery?

1.2 to 1.3 volts

1.4 to 1.5 volts 1.7 to 1.8 volts 1.8 to 1.9 volts B

596 Nickel-cadmium batteries which are . . . .for a long period of time will show . . . .. . . . . .

fluid evaporates through the . . . . .

battery is fully charged

fluid level was not periodically . . . . . .

electrolyte becomes absorbed in the plates

D

597 How can the state-of-charge of a nickel-cadmium battery be determined?

by measuring the specific gravity of the electrolyte

by a measured discharge

by the temperature of the plates

by the level of the electrolyte

B

598 Which of the following may result if water is added to a nickel-cadmium battery when it is not fully charged?

the cell temperatures will run too low for proper output

the electrolyte will be absorbed by the plates during the charging cycle

no adverse results since water may be added anytime

excessive spewing will occur during the charging cycle

D

599 Overcharging of nickel-cadmium batteries causes

excessive wetness around the cells, connectors and cases

consistently low electrolyte level

formation of an excessive amount of potassium carbonate

excessive plate sulfation

C

600 What type of line is normally used in a mechanical drawing or blueprint to represent an edge or object not visible to the viewer?

medium-weight dashed line

light solid line alternate short and long heavy dishes

zigzag or wavy line

A

601 A line used to divide a drawing into equal or symmetrical parts is a

centre line section line extension line cutting plane line A

602 In the isometric view (see Fig 20) of a typical aileron balance weight, identify the view indicated by the arrow

A B D C C

603 Schematic diagrams indicate the location of individual components in the aircraft

do not give individual component location in the aircraft

do not locate components within the system

are used to locate parts and assemblies of parts for installation in aircraft

B

604 (1) A detail drawing is a description of a single part.(2) An assembly drawing is a description of an object made up of two or more parts.Regarding the above statements, which of the following is true?

only no 1 is true

only no 2 is true

neither no 1 nor no 2 is true

both no 1 and no 2 are true

D

605 Identify the bottom view of the object shown in Fig 21.

A C B D B

606 What is a fuselage station number? A measurement in inches from the datum or some other point chosen by the manufacturer

a zone number used to locate a particular point

a measurement in inches from the centerline or zero station of the aircraft

a measurement in inches which always starts at the nose of the aircraft

A

607 What type of line is normally used in a mechanical drawing to represent the exposed

sectioning line

leader line break line outline or visible line

A

surfaces of an object in sectional view?608 How many views are possible with an

orthographic projection?four six three five B

609 In an orthographic projection, which of the following is true?

there are always at least two views

it could have as many as eight views

it must be accompanied with a pictorial drawing

one-view, two-view and three-view drawings are the most common

D

610 Identify the left side view of the object shown in fig 22

A B C D C

611 where is the title block usually located on a drawing?

lower right corner

lower left corner

upper right corner

upper left corner A

612 A line used to show in edge which is not visible in a

position line phantom line hidden line break line C

613 Identify the bottom view of the object in Fig 23. B A C D A614 (1) Schematic diagrams indicate the location of

individual components in the aircraft(2) Schematic diagrams indicate the location of components with respect to each other within the system.Regarding the above statements, which of the following is true

only no 1 is true

both no. 1 and no. 2 are true

only no 2 is true neither no. 1 nor no. 2 is true

C

615 identify the phantom line in aircraft drawings __ _____ __ _____ __ ______ __ _____ __

__ __ __ __ __ __ __ __ __ __ __ __ __ __

__ _____ __ __ _____ __ __ _____ __ __

__ _____ _____ _____ _____ _____ _____

C

616 Which of the following is used extensively in all aircraft maintenance and repair manuals and are invaluable in identifying and lcoating components and understanding the operation of various systems?

drawing sketches

pictorial drawings

assembly drawings

installation diagrams

D

617 What are the proper procedural steps for sketching repairs and alterations? (see Fig 24)

C,A,d, b B,C,A,D D,B,C,A A,C,D,B A

618 What is the next step required for a . . . . .of the ilustration, Fig 25?

darken the object outlines

sketch extension and . . . . . . . . .

add notes, dimensions, . . . . . . .

sketch at least two more . . . . .of the object

B

619 When an aircraft drawing contains three separate views, the drawing is known as

separate view projection

side-view drawing

an isometric three-view

an orthographic projection

D

620 Which of the following statements is applicable when using a sketch for making a part?

the sketch may be used only if supplemented with three-view orthographic projection drawings

the sketch must show all information to manufacture the part

the sketch need not show all necessary construction details

a part is never made solely from a sketch

B

621 In orthographic projection drawings, it is often possible to portray an object clearly by the use of three views. When three-view projection is used, which of the following views are usually shown?

top, front and bottom

front, left-side and right-side

top, front and right-side

front, back and left-side

C

622 What should be the first step of the procedure in sketching an aircraft wing skin repair?

draw heavy guidelines

layout the repair

draw the details block in the views

D

623 (1)AccordingtoFAR91,repairstoanaircraftskinshouldhaveadetaileddimensionalsketchincludedinthepermanentrecords(2)Onoccasion,amechanicmayneedtomakeasimplesketchofaproposedrepairtoanaircraft,anewdesign,oramodification.Regardingtheabovestatements,which. . . .

only no 1 is true

only no 2 is true

both no 1 and no 2 are true

neither no 1 nor no 2 is true

B

624 What are the six possible of an object in Orthographic projection?

Front, top, inside, rear, right side and left side

front, outside, bottom, rear, right side and left side

front, top, bottom, rear, right side, and left side

front, top, bottom, inside, right side and left side

C

625 What is the dimension of the chamber in Fig 26?

0.0625 x 45" 0.0625 R 0.4062 R spherical

0.5000 diameter A

626 Identify the bottom view of the object shown in fig 27?

A B C D C

627 What are the means of conveying dimensions tolerances edge distances bend allowances A

measurements through the medium of drawings?

628 Identify the extension . . . .in Fig 28. C A B D A629 The diameter of the holes in the finished object

of Fig 29 is10 R 8 R 12 R 12 D D

630 What is the maximum diameter of the hole for the clevis pin in fig 30?

0.500 0.3125 0.3185 0.31255 C