paper2 previous year frm1998

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a) stainless steel containing titanium

b) low temperature

c) by reducing heating time

d) both a & b

18. The term used on worm gear

a) threat

b) threat radius

c) threat diameter d) all

19. In flour sent method

a) if wet developer is applied, it must be dried

b) if dry developer is applied, it must not be dried

c) dry for long period

d) all are wrong

20. Telescoping gage

a) is used for inside measurementb) range from ½” to 6”

c) range from ½” to 1”

d) both a & b

21. Hole gage is used for

a) measuring grooves and slots

b) measuring small hole

c) both a & b

d) none

22. The size of the flat cold chisel is determined bya) width of the cutting edge

b) length of the cutting edge

c) length of chisel

d) all

23. Which statement is correct

a) straight fluted reamer is less tendency the chatter

b) spiral type are tapered for the short distance back

of end to and in starting

c) bottoming reamer have tapers end and are used to

short holed) both a & b

24. Thread may be produced by

a) on a leth with specially shaped cutting tool

b) on spirel machine using rotary cutter

c) by rolling on spiral machine using dies

d) all

25. Needle file are

a) knurid on both side

b) knurid on one side onlyc) use on slat by diameter and watch maker

d) both a & c

26. Block spanner is used on

a) round nut having series of knotches or slos cuts on

its side

b) hexagonal nut with slots

c) ??? nut with slots

d) all

27. Meshing gear have same

a) teethb) pitch no. of some size

c) dedendom

d) all

28. Vernier scale is used on

a) microscope

b) boroscope

c) spheroscope

d) all


a) fibre glass is weight more and have less strengththan compare to other composite material

30. Fibre glass is

a) also known as E-glass or electric glass

b) E-glass or borosilicate glass

c) Both a & b

d) None

31. Welf threads are

a) detection for the warp detection

b) detection is 450 to warpc) bias

d) perpendicular to warp


a) force is exerted on charged particle

b) force is applied on charged particle moving along

the magnetic field

33. Strength of composite depending upon

a) type of fiber (bonding material)

b) process of manufacturec) heat treatment

d) all

34. When two sphere of same mass, one id +ve charged

and other is –ve charged, then new mass will

a) change

b) unchanged

35. If the conductor is of 4Ω and it stretched to twice of its

length, then its resistance is

a) 1Ωb) 8Ω

c) 12Ω

d) 16Ω

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36. A and B are big and small battery, having same emf.

Internal resistance of battery A is

a) less than B

b) greater than B

c) equal to B

d) unaffected

37. Which statement is correcta) battery terminal voltage is equal to battery emf

b) battery terminal voltage is less than battery emf

c) battery terminal voltage is more than battery emf

d) depends on direction of current flow

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PAPER – II FEBURARY 1999 1. Hammer shown in figure is

i) Ball peen hammer

ii) Cross peen hammeriii) Claw hammer

iv) Straight peen hammer

2. Figure shown is

i) Torque wrenchii) Reversible ratchetiii) Spanner

iv) Hook hammer

3. Normalizing is done

i) to reduce the internal stresses set up after weldingii) to harden the metal

iii) before welding

4. Choose the correct statement

i) File without handle is called safe edge file

ii) Single and double cut file give final finish

iii) During filing lubricant must be usediv) File is made of carbon steel, hardened and tang is

remains soft

5. Bevel gear is used toi) Transmit motion at an angleii) Take heavier load

iii) Preside smooth operation in helical gear

iv) Transmit load between shaft parallel to each other spur

gear

6. Drive gear with 100 teeth operate at 120 RPM then driven

gear of 50 teeth will rotate. If gdler gear of 60 teeth fitted

between themi) in opposite direction of 120 RPM

ii) in same direction at 120 RPM

iii) in opposite direction at 240 RPMiv) in same direction at 240 RPM

7. MODEM (Modulator – demodulator) is

i) A part of CPU

ii) Input output peripheraliii) A operating system

iv) A language software

8. Input device is

i) Keyboardii) Mouse

iii) Telephone line

iv) All

9. Transistor is used as

i) Rectifier

ii) Voltage doubler

iii) Amplifieriv) Voltage regulator

10. In Ni – Cd battery negative plate is made of

i) Spongy lead

ii) Pure cadmiumiii) Cadmium hydroxideiv) Nickel hydroxide

11. In lead acid battery electrolyte used as:

i) diluted sulphuric acid

ii) concentrated sulphuric acid

iii) potassium hydroxide

iv) amonium chloride

12. Ohm’s law states

i) current x voltage

ii) voltage x current

iii) resistance x currentiv) voltage x resistance

13. Metal tubing is identified by wall thickness and in

i) 1/16” of OD

ii) 1/32” of OD

iii) 1/16” of IDiv) 1/32 of ID

14. Flexible hose is identified by:

i) 1/16” of OD

ii) 1/32” of ODiii) 1/16” of ID

iv) 1/32” of ID

15. End fitting should be used in ½“ metal tubing:

i) AN 818–2

ii) AN 818–4

iii) AN 818–8iv) AN 818–16

16. Metal tubing used in landing gear and flap operation should

be:

i) 2024 or 505

ii) 3000

iii) CRS

iv) Steel hard

17. Normally grip length equal to:

i) thickness of the metal to be joined.ii) Thickness of the metal to be joined + one complete

thread

iii) Two times the dice of rivet

iv) None of the above

18. Double phase is used for:

i) High shear strengthii) Low shear strength

iii) Easy of forming

iv) All of the above

19. In riveting edge distance (minimum) should be:

i) 2 times the thickness of sheet

ii) 2 times the dia of steel shank iii) 2 times the head of rivet

iv) 2 times the length of rivet

20. a

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PAPER – II JUNE 1999

1. The main memory of a computer is

a. Ram b. Rom

c. Hard disk

d. Micro processor

2. The binary equivalent of 55 is

a. 10011 b. 110001

c. 100001

d. 110011

3. 0.10 mm is equal to

a. 0.039”

b. 0.041”

c. 0.035”

d. 0.045”

4. T6 designation of al alloy indicatesa. Saln heat treated & then artificially aged

b. Saln head treated & then stabilized – T7c. Artificially aged only

d. Saln heat treated & then cold worked

5. The major alloying element in 7075 al-alloy is

a. magnesium

b. silicon

c. Mg & Si

d. Zinc

6. The purpose of turnbuckle is

a. to make minor adjustment in cable length

b. to adjust cable tension

c. both are correct 7. A 7x19 cable is made up of

a. 7 strands of 19 wires each b. 19 strands of 7 wires each

8. Which one of the following is boots self locking nut

9. Identify the given tool

a. Adjustable plier

10. A double flare should be used on:

a. Stainless steel

b. Ni-steel

c. Cast irond. Al-alloy only

11. Bead width of butt weld should be

a. 2 to 3 Tb. 3 to 5 Tc. ¼ to ½ T

d. 11/3 to 11/2 T

12. On a fillet weld the pinctration requirements an

a. 60 to 80% of the thickness of the base metal

b. 100% of the thickness of the base metal

c. 200% of the thickness of the base metal

d. 25 to 50% of the thickness of the base metal13. In the fluorescent penetrant inspectiona. the defect will show up as a brilliant yellow-green

b. the defect will show up as a light yellow-green

c. the sound area will appear white

d. the defect will show up deep blue-violet

14. In jacking of a/c

a. Main wheels are raised together b. Nose wheel is raised 6” above the ground

c. Nose wheel hall which is raised for free movement of it

d. None is correct

15. Centre drill is used toa. make hole & reaming in one operationb. make hole & counter sunk in one operationc. make tapper hole

d. all

16. For cast iron, the included any of drill is

a. 118 degree

b. 70 degree

c. 90 degree

d. 140 degree

17. Select the correct statement

a. hand taps are available in 2 sets b. bottoming tap is used to smoothen the bottom of a blunt

hole

c. plug tap is used at the last

d. taper tap is used first

18. The external threads on a bar is made by

a. taps

b. stock

c. diesd. reamer

19. The defect in wheel hub is inspected by

a. Dye penetrant process b. Magnetic particle inspectionc. Eddy current testing

d. Ultrasonic testing

20. The voltage rating of fully charged call of 20 Ni-cd battery

is

a. 1.8 to 2.1Vb. 1.2 to 1.3Vc. 1.4 to 1.7V

d. 1.3 to 1.5V

21. If the temerature of a confined liquid is held constant & its

pressure is tripled, the volume willa. triple

b. be reduced to one – third its original value

c. remain the same

d. none

22. If the pitot head is blocked then which instrument will be

affected

a. ASI b. Altimeter

c. Turn

d. Slip indicator

23. Which statement is correcta. QNH setting gives height above sea-level of the airport

b. QNE setting gives airfield elevtion

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c. aFE setting makes the altimeter read zero on landingat a n aerodrame

d. all are correct

24. Through which material will magnetic lines of force pass

the most readily

a. Copper

b. Ironc. Al—

d. All

25. Which symbol represents a variable resister

a. 2

b. 1

c. 3

d. all

26. With an ohmeter connected into the circuit as shown, what

will the ohmmeter read

27. How can the state of charge of a Ni – cd battery be

determined?

a. by measuring the sp. Gravity of the elistrilyte

b. by a measured chargec. by the level of electrolyte

d. all

28. Which statement concerning the depicted logic gate is true:

a. any input being 1 will produce 0 output

b. any input being 1 will produce 1 output

c. all input must be 1 to produce a 1 output

29. Zero fuel weight is the

a. dry weight plus the wt. is full crew, pax & cargo

b. basic operating wt. without crew, fuel & cargo

c. maximum permissible wt. of a loaded a/c including

d. maximum wt. of a/c with crew, oil, pax less fuel in wingtank

30. The empty wt. of an a/c is determined by

a. adding the net we. Of each weighing points &

multiplying the measure distance to the dator

b. subtracting the tare wt. from the scale reading & adding

the wt. to each weighing point

c. multiplying the measured distance from each weighing

pt. to the datum times the sum of scale reading less the

tare wt.

d. none

31. Unless otherwise specified, torque values for tightening a/cnuts & bolts relate to

a. clean dry thread b. clean, lightly oiled thread

c. either dry or lightly oiled thread

d. none

32. A fiber-type, self-locking nut must never be used on an a/c

if the bolt is

a. under shear loading

b. under tension loading

c. under both shear & tension loading

d. subject to rotation

33. A/c bolts are usually manufactured with a

a. class 1 fit for the threads

b. class 2 fit for the threads

c. class 3 fit for the threadsd. class 4 fit for the threads

34. Generally speaking, bolt grip length should be

a. one & one-half times the thickness of the material

through which the extend

b. equal to the thickness of the material through which

they extend plus approximately one diameter

c. equal to the thickness of the material through which

the extendd. 2 times the dia

35. A particular component is attached to the a/c structure

by the use of an a/c bolt & a castulated tension nut

combination. If the cotter pin hole doesnot align, with the

recommended torque range, the acceptable practice is

a. exceed the torque range

b. lubricate the threaded section of the nut & bolt & torque

c. change washers and try againd. change the nut.

36. How is a devis bolt used with andork-end cable erminal

secured?a. With a shear nut lightened to a snug fit, but withstrain imposed on the fork & satefied with a cotterpin.

b. With a castle nut tightened until slight binding occurs

between the fork & the fitting to which it is being

attached

c. With a shear nut & cotter pin or a thin self locking nut

tightened enough to present rotation of the bolt in the

fork

d. None

37. A bolt with an X inside a triangle on the head is classified

as aa. standard a/c bolt

b. close tolerance boltc. CRS bolt

d. Special bolt

38. The measurement reading on the illustrated micrometer is

a. 0.2851

b. 0.2511

c. 0.2901

d. 0.2861

39. What does the micrometer read

a. .2974 b. .3004

c. .3108

d. .2998

40. What precision measuring tool is used for measuring

cramkpin & main bearing journals for out or round was

a. dial gauge

b. micrometer caliperc. depth gauge

d. all

41. Which tool can be used to determine piston pin out of round

wear?a. dial guage

b. micrometer caliperc. dial indicator

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d. vernier caliper

42. Metal tubing fluid lines are sized by wall thickness and

a. outside dia in 1/16” increment b. inside dia in 1/16” increment

c. outside dia in 1/32” increment

d. inside dia in 1/32” increment

43. Flexible hage used in a/c plumbing is classified in size

according to thea. outside dia

b. cross-sectional areac. inside diad. length

44. Which type of crack can be detected by magnetic particle

inspection using either circular or longitudinal magnatize

a. 45 degree b. longitudinal

c. transverse

d. none

45. What defects will be detected by magnetizing a part using

continuous longitudinal magnetization with a cablea. defects to the longitudinal axis across b. defects parallel to the longitudinal axis

c. defect parallel to the concentric circules of magnetic

force with in the part

d. all

46. Which condition indicates a part has ealed to quickly after

being welded?

a. cracking adjacent to the weld

b. discolouration of bare metal

c. gas pockets, porosity & slage inclusions

d. none

47. A mechanic has complete a bonded honey comb repair

using the botted compound repair technique. What NDT

is used to determine the soundness of the repair after the

repair has cured?

a. eddy current test

b. metalic ring heatc. ultrasonic test

d. magnetic particle inspection

48. Fretting corrosion is most likely to occur

a. when two surfaces fit tightly together but can moverelative to one together

b. only whe two dissimilar metals are in contactc. when two surfaces fit loosely together and can move

relative +ve another

d. galvonic cells develop

49. A primary cause of intergranular corrosions isa. improper heat treatment

b. disimilar metal contact

c. improper application of primary

d. none

50. Galvonic corrosion is likely to be most rapid & sever

a. the surface areaof the cathodic metal is smaller than

surface area of anodic metal b. the surface areas of the anodic & cathodic metals are

approximately the same

c. the surface area of the anodic metal is smaller thanthe surface are of the cathodic metal

d. none

51. Jet fuel identifiers are

a. performance no. to designate the valatility of the fuel

b. performance no. & are relative to the fuel performance

in the a/c engine

c. type no. with no relation to the fuel is performance in

the a/c engined. none

52. Brinell hardness testing is applicable to

a. small part & high hardness

b. large part & small hardnessc. small part & small hardness

d. large part & large hardness

53. identify the given tool

a. indicating snap gauge

b. indicating thickness gauge

c. indicating depth gauge

d. none

54. which one is incorrect

a. ATA62 communication b. ATA30 ice & rain protection

c. ATA52 door

d. ATA78 engine exhaust

55. What will be the speed of given gear if speed of driver gear

isa. 60 rpm

b. 120 rpm

c. 100 rpmd. 240 rpm

56. Compound gear is used for

a. better efficiency

b. better transmission of m

c. greater range of speed

d. all

57. Mg-alloy used with other metal should be

a. given two coats of zinc chromate & a coat of pressedvinyl

b. given one coat of zinc chromate & a coat of pressed

vinylc. given two coats of zinc chromate & two coat of press

vinyl

d. none

58. Colour of 100L fuel isa. died blue

b. colour less

c. died green

d. none

59. An automative type flaring tool will produce a flare

a. 37 degree

b. 45 degreec. 60 degree

d. 30 degree

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PAPER – II (OCT- 1999)

1. Generally speaking, ball grip length should be

a) one and one half times the thickness of the material

through which they extend

b) equal to the thickness of the material through which

they extend plus approximately one diameter

c) equal to the thickness of the material through whichthey extend

d) twice the thickness of the material through which theyextend

2. Which of the following is not contained in type certificate date

sheet

a) minimum fuel grade to be used

b) AD’Sc) Location of the datum

d) Control surface adjustment

3. Refer the figure, what will the ohmmeter read

figurea) 20 ohm

b) 0 ohmc) 40 ohm

4. The numbering system ALPPHT-88 is for

a) blind type lock bolt

b) pull type lock boltc) stump type lock bolt

d) none

5. The nut code number AN 320-10 meansa) 5/8 inch diameter

b) 10 number of threads cut

c) 5/16 inch diameter

d) 5/32 inch grip length

6. N-Alloy 7075 contains

a) 2.5 Mg

b) 1.2 Mn

c) 5.6 Znd) 2.5 Zn

7. Mark the correct statement

a) T4 solution heat treatment

b) T5 solution heat treatment

c) T6 solution heat treatment + artificially aged

d) Both a & c

8. Monel is____

a) heat treatable and non-treatableb) non-heat treatablec) magnetic

d) as in (b) and weldable

9. Titanium is heat treated for

a) relief of stresses set up during cold working

b) provide maximum durability

c) thermal hardening to improve strength

d) all are correct

10. Which hardering heating (hardness) is best suitable for sleep

and alloy

a) Brinell and Barcolb) Brinell and Rockwellc) Rockwell and barcol

d) Barcol (soft) and Rockwell

11. Flexible nose is sized by

a) inside diameter with 1/16 increament b) outside diameter with 1/16 increament

c) inside diameter with 1/22 increament

12. In Rockwell hardness testing, the minor preliminary load is

applieda) to securely lock the part in place

b) to make indentation in the part

c) to get accuracy of the readily

d) all are correct

13. The color code of fuel line is

a) red b) black

c) blue

d) yellow

14. Teflon nose is designed to meet the requirement of

a) higher operating temperature and pressure

b) highly resistant to vibration and fatigue

c) high operating strength

d) all are correct

15. If 28 volt current is passed through resistant of 10Ω, the power consumed by that component is (P=V=V²/R)

a) 78.4 watt b) 780 wc)784 w d) 0.78w

16. Extension tap is used toa) cutting threads in deep holes & cutting the thread in

nut b) cutting threads in nut

c) start the cutting of the threads

d) production and automatic tapping machine

17. Finished threads on bolt is checked by

a) screw pitch gaugeb) ring thread gaugec) filler gage

d) all

18. Broken tap in the hole is removed bya) tap extractor

b) easy out screw extractor (for broken screw)

c) by drilling on the top of tap

d) none

19. If the rpm of the driver gear is 60, then the rpm of driven gear

is

a) 120 rpm b) 100 rpm

c) 60 rpm

d) 30 rpm

20. Identify the figurea) bevel gear

b) helical gearc) spur gear

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d) worm gear

21. Identify the figure

a) glat drill

b) straight fluited drill

c) twist drilld) none

22. Identify the figure

a) flared tublar b) plateless fittingc) head and stamp

d) imaged plumbing

23. Voltmeter is always connected

a) in series with the circuit

b) in paralled with the circuitc) either in series or parallel

d) none

24. Stump type lock bolt is driven with the help of

a) pneumatic pulling gun

b) special driving tool

c) pneumatic leveling hammer and bucking bard) all

25. Which hammer is used for riveting

a) ball pin hammer

b) straight pin hammer

c) cross pin hammer

d) riveting hammer

26. Class-B fire includes

a) fire in wood, paper, cloth etcb) fire in petroleum productc) fire in combustiable material

d) all are correct

27. For extinguishing fire in engine

a) CO2 type extinguishing is used b) Dry chemical extinguishant is used

c) Carbon tetra-chloride extinguishant is used

d) Halogenated type extinguishant is used

28. While jacking one wheel of an aircraft

a) tripode-type jack is used

b) a/c should be raised 6” to 8” above the ground

c) the remaining wheel should be chocked properly

d) all are correct

29. The function of the jack point is to

a) ensure that the a/c load is properly distributed at the jack

point

b) prevent damage of the structure of the a/cc) both a & bd) none

30. Choose the correct statement regarding towing

a) a/c equip with tail wheel and towed generally from

forward

b) nose wheel of a/c are generally towed from forward

c) nose wheel steering should be set to full steer position

d) all are correct

31. When hydraulic lock is detected in an engine then,

a) propeller is pulled through in the opposite direction

b) spark plug is removed and propeller is rotated in

opposite direction

c) spark plug is removed and propeller is turned innormal direction

d) none

32. The voltage of an Ni at battery cell is

a) –

b) –

c) –

d) –

33. Which of the following depicts deficiency is in cold weld

a) un sufficient heat

b) rough and irregular appearance

c) not feather into the base metal

d) all are correct

34. For fluorescent penetrant inspection, the diffect indicated by

a) Brilliant yellow green for defect and deep blue violetfor sound surface

b) Deep blue for defect and yellowish green for sound

surface

c) Red for defect and white for sound surfaced) White for defect and red for sound surface

35. A transducer converts

a) electrical energy into mechanical energy

b) mechanical energy into electrical energy

c) chemical energy into electrical energy

d) one form of energy into another (electrical) energy

36. Circular magnetization can detect

a) lateral defectb) longitudinal defectc) transaction defect

d) all

37. De-magnetization is carried-out by

a) moving the part away from the alternating field of

solenoid

b) deflecting the part to a magnetizing field continuously

inversing in direction and at the same time gradually

decreasing the strength

c) passing the a.c. to the part and reduce the current to zero

d) all are correct38. In chrome-plating process, the crisis deposited on the part

from

a) cathode

b) electrodec) electrolyte

d) tank

39. After tempering, the part is cooled in

a) hot water

b) cold water rapidlyc) the rate of cooling from tempering temperature does

not effect on the reacting structured) spraying hot water

40. Round black bar is well inspected by which NDT

a) radiography

b) eddy currentc) ultrasonic

41. The programmer step up the voltage in the ratio of 5:1 and

secondary current is 0.20 amp, the primary ?????????

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42. What is the descriptive of the annealing process of steel

during and after it has been annealed

a) Rapid cooling, high strength

b) Rapid cooling, low strength

c) Slow cooling, low strengthd) Slow cooling ( high strength) and increasing resistance

to wear

43. Clevis bolt is designed to take

a) shear load b) tensile loadc) external load

d) all

44. The main control unit of computer in present is

a) VDU

b) CPUc) Key board

d) Hard disk

45. While testing for magnetic testing, it was found non-

magnetic, in nitric acid it was found rapid action, greenish blue

color, the material isa) Ni-steel b) 18-8 steel

c) monel

d) CRS

46. Analogue computer is

a) more correct than digital computer

b) less accurate than digital computerc) equal to digital computer

d) none

47. In computer, machine level language is

a) high level language

b) low level languagec) very high level languaged) none

48. Decimal equivalent t binary no. 110 is

a) 2

b) 3

c) 6d) 9

49. Al-alloys can be heat treated

a) solution heat treatment b) precipitation heat treatment

c) artificial aging indicated with W(T5)

d) both a & b

50. In NDT, satisfactory performance of magnetic particle

inspection cannot be find in

a) Cd

b) Cu

c) Sn & Zn

d) None

51. The transferring metal from one object to another by

chemical and coating is done to protect the base metal froma) Corrosion

b) Wear

c) Increase the dimension to protect the base metal against

chemical reaction

d) all

52. Improve tensile strength, ductility and sleck (shock)

resistance of Mg-alloy casting are normally

a) Case hardened

b) rotation heat treatmentc) none

53. No. of threads can be checked bya) screw pitch gauge

b) thickness gauge

c) radius gauge

d) all

54. A gear rack when mashed is sued to change

a) rotary motion to reciprocating motion

b) reciprocating motion to rotary motion

c) transmit load

d) none

55. Convert 27 in binary no-

a) 11111

b) 10111

c) 11011d) 11101

56. The magnitude of induced emf produced in a coil, when a

magnet is inserted in it, does not depend upon

a) no. of turns in coil

b) resistance of coilc) magnetic moment of magnet (magnetic strength)d) speed of rotation of magnet

57. Kewlar composite material has

a) a bright grey color

b) less corrosion when in contact with N-alloy

58. Carbon graphite

a) is same strong as kewlar

b) is more stronger than kewlar (compressive strength)

c) is more brittle than kewlar

d) none

59. Metal matrix

a) used in a/c

b) uncommon

c) same as plastic matrix with fibre reinforcement

d) none

60. A transfer is___

a) amplify the low input signal to high output signal

b) used as a rectifier

c) used in transducer set

d) both a & c are correct

61. Which is preferred in a/ca) TIG welding

b) MIG welding

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62. The tool shown is

a) flap wrench

b) die stock

c) none

63. Which Boolean’s algebra is not true

a) A+B=B+A b) A.0=0 c) A.A=0 d)A.1=0

64. Which is sued as universal building block (gate)a) ANDb) NANDc) OR

d) XOR

65. The weld is B (Double bevoled T-joint)

a) V – butt weld

b) U – butt weld

c) Beveled butt weld

d) T – butt weld

66. Brinnel hardness tester is used for

a) larger part and low hardness b) small part and low hardnessc) small part and large hardness

d) large part and high hardness

67. Barcol tester is used

a) soft material

b) steel

c) hard material

d) all

68. The ATA-100 specification no. for hydraulic, pneumatic,

stabilizers and engine is

a) 55,36,29,77 b) 36,29,55,77

c) 29,36,55,77d) 29,36,77,55

69. The missing edge or planes are shown by

a) dotted line

b) dashed linec) hidden lined) all

70. In some large a/c, in the side of main L/G strut, there is a

hydraulic jack

a) to jack-up the a/c when one wheel is to be raised b) to serve the oleo shock strut when a/c is jacked up

c) to jack up the aircraft completely

d) all are correct

71. The precision measuring tool, that is used for measuring

crankshaft and main bearing journal for out of roundness and

wear is

a) dial gage b) depth gage

c) micrometer caliper

d) vemier caliper

72. The dimensional inspection of a bearing in rocker arm can beaccomplished by

a) depth gage and micrometer b) telescoping gage and micrometer

c) thickness gage and push fir arber

d) none

73. The cracks adjust to weld is due to

b) rapid cooling adjacentc) excessive O2

d) excessive O2Hz

e) all are correct

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12/101

PAPER-II FEBURARY 2000

[WORKSHOP TECHNOLOGY]

1. Spur gear circular pitch means-

a) distance from centre of one thread to the centre ofnext consecutive tooth measured on the pitch circle

b) imagining line passing through the points at which the

teeth of meshing gear contacts

c) both (a) & (b) are correctd) none of the above is correct

2. Diametrical pitch of spur gear:

a) represents the no. of teeth/inch b) diameter of the pitch circle

c) both (a) & (b) are correct

d) none of the above

3. If drill size is not written on the body of the drill then it can

be obtained by:

a) drill sharpening gage

b) it will be written on right-hand side of the drill shank

c) it will be written on left-hand side of the drill shank d) none of the above is correct

4. In cross peen and straight peen hammer the peen end is:

a) parallel and perpendicular to the handle

b) perpendicular and parallel to the handlec) both parallel to the handle

d) both perpendicular to the handle

5. Figure of punch holder

6. No. of thread/inch is measured by:

a) screw pitch gage

b) ring gagec) plug gage

d) all are correct

7. Metric micrometer graduation on steeve

a) 0.025

b) 0.001c) 0.05d) 0.50

8. Buttress thread is used:

a) where a thread requiring greater strength in onedirection

b) where a thread requiring greater strength in bothdirections

c) it is used for feed and lead screw on machine tools

d) none is correct

[ELECTRICITY]

9. Inductive reactance is measured in:

a) henry

b) farad

c) ohmd) none

10. Overheating a circuit from excessive amount of current is protected by:

a) fuse

b) circuit breaker

c) thermal protectord) all are correct

11. Battery cell voltage and current high in:

a) series connection

b) series-parallel connectionc) parallel connection

d) all are wrong

12. Generator voltage depends on:a) strength of magnetic field

b) speed of rotation of conductor

c) no. of turns of conductor

d) only (a) & (b) are correct

13. State of charge of Ni-Cd battery will be determined by:

a) measuring specific gravity of the electrolyte

b) by a measured dischargec) by the temperature of the plates

d) by the level of the electrolytes

[ELECTRONICS]

14. NPN transistor used as amplifier when:

a) current flows from emitter to base b) current flows from base to emitter

c) current flows from base to collector

d) current flows from collector to base

15. Advantage of tetrodes over triodes

a) greater amplification for smaller input voltage

b) less feedback from plate to the grid circuitc) both (a) & (b) are correctd) only (a) is correct

16. Figure shows:a) NOR gate

b) OR gate

c) Exclusive OR gate

d) None

17. In gate if a=0 and b=0 then c=1, and a=0 and b=1 then c=1,

the gate is:a) NAND gate

b) AND gate

c) NOR gate

d) OR gate

18. Convert number 36 to binary number a) 100100

b) 110010

c) 100111

d) 11100111

19. Convert binary 1000101 to number.

[HARDWARE]

20. Figure shows:

a) reworked bolt

b) stretched steel boltc) close tolerance bolt

d) Al-alloy bolt

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13/101

21. Self plugging (friction lock) rivets are replaced by:

a) with the same size of solid rivet

b) with the rivet one size larger

c) can not be replaced by any one

d) all are incorrect

22. Alloy steel lock bolts may be used to replace:

a) hi-shear rivet

b) solid steel rivetc) all bolts of same dia and head typed) all are correct

23. Fluid lines are identified by:

a) colour codes and words

b) colour codes and geometrical symbols

c) both (a) and (b) are correctd) only (b) is correct

24. Ring packing slight surface flows may be detected by:

a) using 4-power magnifying glass with adequate lighting.

b) By rolling the ring as inspection cane or dowel, the

inner dia surface can also be checked for small cracks.c) Slight scratching of the ring when it is rolled inside out

will help to reveal some defects not otherwise visible

d) All are correct

[GENERAL MAINTENANCE]

25. Which is correct concerning jacking of an aircraft:

a) tripod jack of appropriate size for the aircraft being

jacked should be replaced under the aircraft jacking

points and perfectly centered to prevent them from

cocking when the aircraft is raised.

b) At least three places or points are provided on aircraft

for jacking purposes, sometimes fourth place is given tostablise the aircraft while it is being jacked at the other

three points.

c) All are incorrect

d) Both (a) and (b) are correct

26. Which is correct concerning mooring of an aircraft:

a) small aircraft should be tie down after each flight to

preclude damage from sudden storms.

b) Normal tie down procedure for heavy aircraft can be

accomplished with rope or cable tie down

c) Both (a) and (b) are correctd) All are incorrect

27. ATA 24 is:

a) communication

b) equipment/furnishing

c) electrical powerd) auto flight

28. In ATA code wires and cable’s designation given:

a) side by side b) in suffix and prefix

[BASIC ENGINE]

29. Purpose of additives in fuel is:a) to prevent microbial growth

b) for water detection

c) for detonation

d) all are correct

30. In four stroke engine ignition takes place in each cylinder

after:

a) two complete revolution of crankshaft b) after 180º movement of crankshaft

c) after only half rotation of crankshaft

d) after four rotations of crankshaft

[INSTRUMENT] 31. Manifold pr gage shows the pr when it is not open:

a) atmospheric pr

b) manifold pr

[METALLURGY]

32. Rockwell hardness tester measures the

a) resistance to penetration

b) dia of penetration


d) none of the above is correct

33. Titanium can be identified by:

a) spark test

b) moistening the titanium and using it to draw a line on a

piece of glass

c) it will give a dark line similar in appearance to a pencil

mark

d) all are correct

34. In annealing the slow cooling will do:a) soften the steel

b) increase the toughness of steel

c) give greater strength of steel

d) all are correct

35. If the soaking period of heat treated parts increases then:

a) the part will start to reprecepctate b) grain structure will be finer



36. Barcol tester is applicable for:

a) Al-alloys and Copper, Brass

b) Al-alloys, Mg-alloys and Copper

c) Mg-alloy and Copper

d) All are correct

37. Corrosion of Titanium is cleaned by:

a) hand polish with Al-polish and mild abrassive paper b) using a stiff and hog bristle brush

c) use of small power buffers and buffing compound

d) hand wire brush and steel wool

38. T36 means:

a) alloy has been solution heat treated and has had its

thickness reduced by 6% by cold working

b) artificially aged only

c) solution heat treated followed by strain hardening

d) solution heat treated followed by artificially aged

only

39. In soldering the flux is used:

a) to remove and prevent oxidation the metal

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14/101

b) allowing the solder to flow evenly


d) (a) & (b) are correct and to unit more firmly with thesurface to be joined

40. In welding the welded parts are heat treated:

a) to provide greater strength in welded region

b) to relieve the stress set up during weldingc) to make soften the welded parts


41. In overlap weld joint:

a) flux used between the two parts

b) flux is used on upper partsc) flux is used on the inner parts


(not exactly, but like that)

42. In welding copper and brass the flame is used:

a) slightly carbonized

b) neutral flame usedc) oxidized flame used

d) both (a) and (b) are correct

43. In welding Al-alloy the flux used is:

a) potassium chloride

b) potassium fluoride

c) potassium bisulphate


44. In radio graphic inspection method:

a) thicker the material, darker the impression

b) thinner the material, darker the impressionc) thicker the material, lighter the impressiond) thinner the material, lighter the impression

45. In dypenetrant inspection method the long or short crack

will:

a) take longer time to be penetrate b) will take less to be penetrate

46. In fluorescent penetrant inspection the defect will appear:a) in green colour as seen in black light

b) will appear in deep blue-violet colour

c) bright red indication will appear

d) in ultraviolet colour

47. Defect in dye penetrant will be appear:

a) brilliant yellow green colour b) bright red colourc) deep blue violet colour


48. Defects in the inner surface will be seen by:

a) Boroscope’s method

b) Fiberooptic’s scope method

c) Indoscope method

d) All are correct

49. Factor include in radiographic exposure

a) material thickness and density

b) type of defect to be inspectedc) type of X-ray machine used and (a) and (b) are correct

d) only (a) and (b) are correct

50. Which are used as a filler material:

a) boron

b) cellusosic material

c) polyester resin

d) epoxy resin

51. Reinforcing fiber

a) When combined with the matrix, give primary strength

to the composite structure

52. Matrix material

a) it is a bonding material

b) it transfers the stress on composites to the reinforcing

fiber

c) used as a adhesive

d) all are correct

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15/101

JUNE – 2000 1. In 7075-0 indicates

a) annealed b) strain hardened

c) solution HT

d) none

2. One r is dash on bolt head indicates

a) CRS bolt b) NAS close tolerance bolt

c) AN standard bolt

d) None

3. The line used for reference of pars is

a) reference line

b) hidden line

c) phantom lined) black line

4. The colour of 6053 Al-alloy is

a) red

b) black c) greyd) white

5. Lock bolt, which indicates flat head is

a) ALPP

b) ALPB

c) ACST

d) ALSF

6. In flexible hoses slack is given

a) 2 to 3% of total length

b) 5 to 8 % of total length

c) 3 to 9% of total lengthd) 10% of total length

7. When tightening of nut is precious, which tool is used

a) allen wrench

b) torque wrenchc) spanner wrench

d) combination wrench

8. Which AL-alloy rivet has highest strength

a) 5056-T

b) 2117-T

c) 2024-T

d) 5056-W

9. Al-alloy is not heat treated properly to have uniform grain

boundaries it has

a) stress corrosion

b) galvanic corrosionc) intergranular corrosiond) fretting corrosion

10. Which one is unpaired

a) battery – accumulator

b) diode – NRV

c) AC generator – vortex generator

d) EMF – MMF

11. Which is used to transfer rivet size from template to new

sheet is

a) centre punch

b) pin punch

c) alignment punch

d) transfer punch

12. A side clearance between piston ring and cylinder wall is

measured by

a) telescopic gauge

b) thickness gauge

c) micrometer d) plug gauge

13. When base circuit is open at R, then

a) bulb can not be turned off

b) bulb can be turned off c) bulb can not be effected

d) high current will flow in circuit

14. The resistance of conductor depends on

a) temperature

b) length and material

c) cross-sectional area

d) all 15. In on inductive circuit

a) current lags behind voltage by 90 b) current leads behind voltage by 90°c) Current and voltage are in phase

d) None

16. In magnetic particle inspection, nickel plating does not give

indication of

a) crack

b) discontinuitiesc) corrosion

d) none

17. In dye penetrant inspection, the defects under while light

appers

a) black

b) green

c) redd) all

18. Which is unpaired

a) dye penetrant – capillary acceptance

b) ultrasonic test – peizo electricity

c) eddy current test – current acceptance

d) magnetic test – skin test

19. Dye penetrant inspection is applicable to

a) ferrous alloys only

b) plastic and non metal

c) non ferrous alloys metal

d) all

20. In ultrasonic test, when mechanical stress vibration is applied

to crystal quartz then these are

a) electrical energy and voltage are produced

b) more vibrations are produced

c) as in (A) and varies with the thickness of crystald) none

21. Form of corrosion which occurs between metal and non metal

is

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16/101

a) filliform corrosionb) crevice corrosionc) exfoliation corrosion

d) fretting corrosion

22. Normalizing is applicable to

a) cu-alloys

b) Al-alloys

c) Ferrous alloy only

d) Both a & b

23. Main content of 5056 Al-alloys is

a) Zn b) Mg c) Cu d) Si

24. Freating the parts in anhydrour ammonia is

a) carburizing

b) nitridingc) cyaniding

d) nor-malizing

25. For maximum elongation, ductility, tensile strength and

impact resistance Mg-alloy is

a) solution heat treatment b) castedc) precipitation heat treatment

d) none

26. Which one is not primary cell

a) Zn-carbon cell b) Lead acid cell

c) Alkaline cell

27. Ni-cd battery is charged with

a) constant current varying voltage

b) constant voltage varying current

c) both (a) & (b)d) none

28. An ac circuit consists of inductance of 10Ω, capacitance 4Ω

& resistance 8Ω the impedance of the circuit is Z=√R²+(XL-XC)

a) 6Ω b) 10 c) 5.5Ω d) 8Ω

29. Glider has lift due to

a) high aspect ratio (s/c) b) high lift/co-efficient of lift (L/C) ratio

c) symmetrical wing

d) more wing area

30. In flight extending flapsa) increase lift

b) increase lift and drag both

c) increase drag

d) reduce stalling speed

31. Which has increasing order of strength

a) 2S, A14ST, 17ST, 24ST

b) 2S, 24ST, 17ST, A17ST

c) 2S, 17ST, 24ST

d) 2S, A17ST, 24ST, 17ST

32. Composite has

a) resistance to wear

b) high strength to weight ratioc) resistance to corrosion

d) all

33. The static vents with the flat surface plate at two position to

a) minimize position error

b) have is formation freedom

c) both a & b

d) none

34. Heat treated defect in metal is detected by

a) ultrasonic test

b) eddy current testing

c) dye penetrant testingd) radiography testing

35. An ac circuit has inductance 3Ω and resistance of 4Ω, thenimpedance of the circuit is

a) 3Ω b) 1Ω c) 5 d) 7Ω

36. The maximum radius for bending of Al-alloy should be

a) 3 times the sheet thickness

b) 6 times the sheet thickness

c) 9 x sheet thickness

d) 10 x sheet thickness

37. The truth table is for A B Y

0 0 0

0 1 1

1 0 1

1 1 0

A) OR-gate

B) X – OR gateC) AND-gate

D) NAND gate

38. Beryllium copper has greater advantage of

a) creep

b) high strength and uniform propertiesc) corrosion resistance

d) uniform grain structure

39. Mg is ________

a) Susceptible to corrosion

b) Has tendency to crack

c) Resistance to corrosiond) Both a & b

40. For most metals, which oxy-acetylene flame is used

a) neutral flame b) oxidizing flame

c) carburizing flame

d) none

41. Which one is heat treatable alloy

a) 24 S

b) clad 24 S

c) A17Sd) Any Al-cu alloy

42. Rack is mest with a gear, it is used to change (the purpose of

rack and pinion is to change)

a) rotary motion to reciprocating motion b) reciprocating motion to rotary motion

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17/101

c) both a & b

d) none

43. Lift depends upon

a) velocity of relative wind

b) density of air

c) wing span (area)

d) all

44. Metal metrix composite is a recent conceptional material inwhich

a) resin is reinforced with metal

b) resin and fibres are reinforced with metal

c) fibres are reinforced with metal during molten staged) all are correct

45. In SAE-1030, carbon percentage is

a) 30% b) 9.5% c) 10 % d) 30%

46. To roll a pure Al-sheet over Al-alloy is called

a) Al-clad

b) Pure clad

c) Laminated Ald) Both a & b

47. Magnetic particle inspection (MAP) can be done when flow

is

a) at or near the surface

b) on or in depth of surface

c) near or in depth of surface

d) all

48. Cd-plating is done on steel parts

a) to prevent corrosion

b) to built upc) to give tusture and brightness

d) all are correct

49. Heated-treated and non-heat treated metal 25, distinguished

by

a) magnetic particle inspectionb) eddy current testc) dye penetrant inspection

d) ultrasonic test

50. Titanium is heat treated by

a) normalizing

b) full annealingc) case hardening

d) all

51. Maximum bending in case of copper tubing isa) three times to internal diameter

b) six times to internal diameter

c) nine times to internal diameter

d) twelve times to internal diameter

52. Pickling of steel is carried out in

a) H2SO4 b) Muriatic acid c) all d) done

53. Peizo electric effect is

a) if mechanical stresses applied to a quartz crystal, then

voltage is induced

b) frequency depends on thicknessc) both a & b

54. Electroplating provides

a) corrosion resistant surface

b) wear resistant surface

c) both a & b

d) none

55. Re-heating is done toa) remove strain and stresses

b) remove effect of heat treatmentc) remove hardness and brittlenessd) none

56. In cable strand, the wires are performed to provide

a) corrosion resistance

b) flexibility

c) prevents from ravalling

d) both a & b

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18/101

OCT – 2000 1. The piston engine works on

a) Boyle’s law

b) Brayton cycle

c) Charle’s law & otto cycle

d) Both a & c

2. The mechanical efficiency of piston engine is determined by

a) engine speed b) fuel used

c) mean effective pressured) mixture ratio (throttle setting)

3. The main alloying element is 7075 Al-alloy is

a) Cu b) Mn c) Zn d) Si

4. The tubes are sized by

a) inside diameter in increment of 1/16”

b) inside diameter in increment of 1/32”

c) out side diameter in increment of 1/16”d) out side diameter in increment of 1/32”

5. Flared tube fittings used in a/c are made of

a) Al-alloy

b) Cu

c) Steeld) All are correct

6. Muntz metal consists of

a) 60% of Cu and 40% of Zn

b) 60% of Zn and 40% of Cu

c) as in (a) and basically brassd) as in (b) and basically brass

7. Steel has fine grain structure, when

a) when heated above the critical temperature b) when heated below the critical temperature

8. The soldering of Al-alloys differs from other metals due to

a) high heat expansion and contraction

b) greater heat input

c) uneven expansion and contraction

d) all

9. Kirchoff’s law is applicable is

a) d.c b) a.c. c) d.c. circuit having

resistance d) ac & dc

10. In modulation, the available band isa) one

b) two

c) no band

d) many band

11. The modulation in which, amplitude is kept constant and

frequency is changed is called

a) amplitude modulation

b) space modulation

c) frequency modulation

d) phase modulation

12. The angle of attack is thea) acute angle between aircraft longitudinal axis and chord

line to which aerofoil is mounted on the aircraft

b) horizontal acute angle between the symmetryaircraft and wind direction from which it touches theaircraft

c) the acute angle between the summetry of the aircraft and

the chord line of aerofoil section

d) all are correct

13. In NDT of material by Dye penetrant inspection (DPI) the

volume of defect is interpreted by

a) Staining rate b) Staining speedc) Staining extentd) All

14. In UST, scanning is carried out by moving both probes

simultaneously in opposite direction for

a) flash butt joint (weld) b) heavy forgings

c) heat treatment defect

d) thickness measurement

15. During fuelling, the most necessary precaution to be observed

a) grounding connection first made to aircraft and thenfuelling vehicle

b) grounding connection first made to fuelling vehicleand then the aircraft

c) skillness of fuelling person

d) all are correct

16. The fluid use for all types of aircraft engines except rocket is

a) gasoline

b) airc) ATF

d) All are correct

17. In composites, the strength is provided bya) reinforced fibre

b) core

c) resin

d) (a) and fibre

18. In hardness testing of composite, the hardness is measured

a) resin

b) reinforcing fibre

c) specific chart

d) both a & c are correct

19. In composites, repair the part is steeped rather than to be

scrafed for a) uniform shear stress

b) uniform tensile stress

c) smoothness

d) both a & b

20. After honeycomb repair, the moisture entrapment is inspected

by

a) radiography

b) ammeter

c) laser holography

d) all

21. In uniform fluid flow, the fluid is first made to flow through atube and the pressure exerted by the fluid is measured by

a) dynamic pressure

b) static pressure

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19/101

c) reynold’s no.

d) all

22. PARKETON is used for protection of

a) steel

b) numinium

c) Mg

d) As in (a) and cable

23. The rust and corrosion is removed from highly stressed steel parts by

a) abrasive paper

b) fine buffling cloth on buffling wheel

c) wire brush

d) all

24. Centre drill is used to produce

a) short hole and CSK hole (countersunk)

b) short hole and large hole

c) both a & b

d) none

25. During repair procedure of composite part treatment is donefor

a) small disbands

b) restore surface protection

c) seal honeycomb casting

d) none

26. Synthetic rubber used in the aircraft is designated GRM as

a) poly sulphide polymer

b) isobutylene

c) complex of butylenes and cresylonitrile

d) government rubber mono-vinyl acetylene or neoprene

27. The neutralize the surface of Ni-cad battery compartmenta) Boric acid

b) Water

c) Backing soda

d) All

28. Close tolerance bolt is identified by

a) triangle marking on head

b) crossed triangle marking on head

c) circle marking on head

d) triangle on head with plus marking within it

29. While jacking, the approved procedure is

a) both wheels are raised together b) wheels are raised one after another

c) –

d) –

30. The class of fit required for a tight drive fit is

a) class-1

b) class-2

c) class-3

d) class-4

31. Piston engine’s mechanical efficiency differs due to

a) difference of pressure

b) difference of temperature

c) difference of grade of fuel usedd) difference in mass of fuel

32. A device which gives lateral control and is mounted at the

opposite surface of wing

a) spoiler

b) vertex generator

c) tab

d) flap

33. The presence of water can be detected by

a) USI

b) DPIc) Endoscope

d) Radiography

34. Aircraft bolts are generally manufactured with a

a) Class – 1 fit for the threads

b) Class – 2 fit for the threads

c) Class – 3 fit for the threadsd) Class – 4 fit for the threads

35. The nose of l00LL AVGAS dispenser is

a) red

b) blue

c) black d) green

36. Which is low energy logic circuit

a) TTL

b) ECLc) Both a & b

d) None

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20/101

PAPER – II (FEB-2001) 1. Color code of 2024 Al-alloy tubing is:

a) White

b) Green

c) Redd) Black

2. Head marking of corrosion resistance steel (CRS) bolt is

a) Raised dash (single) b) Raised ring/dashc) Recessed triangle

d) No head marking

3. Rivet of ¼” diameter is replaced by:

a) Two 1/16’ diameter rivet

b) Three 1/16 dia rivet

c) Three 1/32 dia rivet

d) None four 1/16 dia rivet

4. Rivet can be removed by:

a) Center punch

b) Prick punchc) Pin punch (drift punch) drive or tapered punchd) Alignment punch

5. Head marking shows which bolt:

a) CRS

b) AN-standard

c) Al-alloy (2024)d) Close tolerance

6. After welding part must be:

a) Bardened

b) Normalized

c) Annealedd) Tempered

7. When material is forced through a die to take the shape of

die, is called:

a) Forging

b) Rollingc) Extrusiond) Casting (Mg)

8. All long extruded parts such as bar, tube, pipe etc. are stored:

a) Horizontally

b) Horizontally with well supported along its length

c) Vertically inclined at an angle of 60ºd) All

9. Bronze is Cu-alloy containing:

a) Tin b) Zinc

c) Titanium

d) All

10. Lay lining in the fitting indicates:

a) Size of the nose

b) Types of the fluid to be used

c) Date of manufacture

d) To identification of co-axial junction

11. Stress corrosion occurs in:

a) Wing skin

b) Compressed partc) Bolt hole

d) Tubing with tabbed thread fitted in cast alloy

12. In joined part, the opposition offered in crushing:

a) Shear strength

b) Bending strength

c) Compression strength

13. The part which is dry and un lubricated, which of thefollowing occurs:

a) Erosionb) Abrasionc) Fettlers

d) All

14. In radiography NDT, which of the following factor does not

affect the test:

a) Distance of film and exposure angle

b) Timec) Material thickness, density, shape & size

d) Film characteristic

15. Which of the following pin is used to take shear load:

a) Taper pin

b) Clevis pinc) Roll pin

d) Cotton pin

16. In pulse echo method, liquid coupling used for:

a) Reduce a caustic attenuation b) Reduce a caustic mish match

17. The sketch giving the description of object made up of two

or more parts:

a) Detail drawingb) Assembly drawingc) Installing drawing

d) None

18. Identify the bolt (CAIP-BL/2-3):

a) 12 point ball

b) 12 pint drilled bolt

c) 12 point extender washer bolt (cup washer locked)

d) 1 double haxagon head bolt

19. Minimum bend radius of flexible hose depends upon:

a) Type of the material

b) Size of the hosec) Working pressure

d) Both (a) & (c)

20. Regarding the plumbing of rigid tube, which is true:a) Less dia tubing required less distance support

b) Less dia tubing required more distance support

c) Large dia tubing required less distance support

d) Large dia tubing requires more distance support

21. Double flaring provides:

a) Smoothness

b) More concentric

c) Seals better d) All

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21/101

22. Combination of corrosion resistance steel (18-8 steel):a) 8% Ni and 18% chromium

b) 18% Ni & 8% chromium

c) 29% chromium & 8% nickel

d) 8% chromium & 29% nickel

23. As per ATA-100 specification, the correct sequence of air

conditioning, fuel, navigation and oil system is:

a) 21, 28, 34, 79

b) 21, 34, 28, 79c) 31, 34, 52, 80

d) 32, 28, 34, 79

24. Find out the reading of metric micrometer:

a) 5.46

b) 5.64

c) 0.564

25. Pitch of the micrometer is:

a) 20 TPI

b) 40 TPIc) 30 TPI

d) 50 TPI

26. Axial distance covered by a threaded fastener in one

complete revolution is called:

a) Pitch

b) Lead

c) Bolts

d) None

27. Identify the figure:

a) Typical extractor tool

b) Tang break punch

c) Inserting tool

d) None

28. In chisel, the shape of the cutting edge is grounded:

a) Convex

b) Convex to concentrate the shock at the center of thecutting edge

29. In engineering drawing, the lines indicate the alternate

position of parts or relative position of a missing part:

a) Hidden line

b) Phantom line

30. Least count of micrometer is:

a) 0.01 mm b) 0.001 mm

c) 0.0001 mm

d) 0.1 mm

31. What amount of load is acting on the bolt of extension bar is

used on the torque wrench as shown in figure:

a) 150 lbs

b) 125 lbsc) 175 lbs

d) 200 lbs

32. Magnetic flux depends upon:

a) No. of turns b) Rpm

c) Rate of cutting of fluxd) All

33. Inter granular corrosion is repaired by:a) Cleaning the part and coating the zinc-chromate primar

b) Replace the part

c) Both (a) & (b)d) None

34. Fatigue crack occurs due to:

a) Continuous reversal load b) In new parts

c) Both (a) & (b)d) None

35. Corrosion in a hole is removed by:

a) Helicoil insersion

b) Acres sleeve used

c) Scrap the part

d) Drilling

36. To reduce the precipitation, the medium used is:

a) Water

b) Air

c) Oil

d) Brine 37. Vertical portion of the structure in aircraft is indicated by:

a) Butt line

b) Water linec) Station line

d) All

38. Electrolyte in Ni-cd battery:

a) Takes no part in chemical reaction

b) Serves as a conductor on –OH ionc) Both (a) & (b) are correct

39. (0.625)10 = ( )2a) 0.110

b) 0.101c) 0.011

d) 0.100

40. (1010101)2 = ( )10a) 110b) 85c) 75

d) 95

41. Power factor in d.c. circuit is:

a) Unity b) Infinite

c) Zero

d) None

42. Unit of electrical energy is:a) Kilowatt hour

b) Ampear

c) Watt hour

d) All

43. Power can be calculated by:

a) V2/R

b) I2R c) V.I

d) All

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22/101

44. Effect on the part by varying frequency in eddy current

testing is:

a) Skin effect

45. Which instrument is affected by position error:

a) Altimeter

b) ASI

c) VSI

d) Both (a) & (c)

46. Pitot pressure is used in:

a) Altimeter b) ASIc) VSI

d) All

47. Figure shows:

a) I angle projection

b) II angle projection

c) III angle projectiond) Sectional projection

48. The heat conductivity of a metal depends upon:a) Heat treatment

b) Alloy in the material

c) Tensile strength/hardnessd) All are correct

49. VHF is used for:

a) Short distance communication

b) In broad casting

c) Long distance communicationd) Point to point microwave

50. Output is zero when input is 1 or both inputs are 1, the gate

is:a) AND gate

b) NAND gate

c) NOR gated) OR gate

51. For given figure, which is correct:

a) 0, 0, 1b) 1, 0, 1c) 1, 1, 0

d) 1, 0, 0

52. Batteries are connect in series:

a) Total current is equal to the sum of the individualcurrent

b) Total voltage is equal to the sum of the individualvoltage

c) Both (a) & (b)

d) None

53. When three individual resistance are connected in parallel to

each other which of the following is correct:

a) R = R1 + R2 + R3

b) 1/R = 1/R1 + 1/R2 + 1/R3

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23/101

PAPER – II (JUNE-2001) 1. Clevis pin used:

a) With head up position

b

As in (a) & washer must be applied under

2. Peel ply means:

a) Prevent excess resists

b) Remove, after curec) Prevent vacuum bagging from stricking to the paint

d) All are correct

3. In magnetic and non-magnetic material, coating

thickness of ferrous and non-ferrous alloy should be

measured by:

a

Eddy current

b) Magnetic particle test

c) Micrometer caliper

d) All

4. Which takes primary load:

a

Fibre

b) Metrix

c) Both (a) & (b)

d) None

5. Which takes in part of transferred load:

a) Fibre

b

Metrix

c) Both (a) & (b)

d) None

6. In case hardening nitriding process:

a) With the part this heated ammonia gas is circulated

within the furnace chamber

7. T-series, Z-section and angles are formed by:

a) Rolling

b) Forging

c

Extrusion

d) All

8. Hole must be inspected for cranks or burrs:

a) Before reaming

b) After reaming

c

Before and after reaming

d) None

9. When two surfaces fit tightly together, but can move

relatively to one another:

a

Fretting corrosion

b) Intergranular corrosion

10. Unit of magnetic flux is:

a

Webre

b) Newton meter

c) Both (a) & (b)

d) None

11. Which statement is correct:

a) Welded joint of thick material can not be inspected

by ultrasonic test

b

Thin sheet metal welds are more satisfactorilychecked by X-rays

12. P.N. junction in transistor conducts in:

a

Forward bias

b) Reverse bias

13. Which fibre has higher compressive strength:

a

Carbon fibre

b) Ceramic

14. Mark the correct statement:

a) Hot water quenching minimizes distortion and

alleviates crack

15. Galvanometer is transferred in ammeter:

a) By connecting low resistance in series to the

galvanometer

b) By connecting high resistance in series to the

galvanometer

c) By connecting low resistance in parallel toincrease range

d) By connecting high resistance in parallel to

increase range


a) Off set screw drivers are constructed with bothends bent at 90º to the shank

b) Rachet screw driver is used for heavy duty

c) Reed and prince screw driver is interchangeable

with Philips so

d) All are correct

17. Where high temperature is used for brazing:

a) For high power solder

b) Special type of flux is used

c) Not used for brazingd) None

18. High heat of Al-sheet from fire causes:

a) Increase ductility

b) Decrease ductility

c) Increase resistance

d) None (increase, conductance)

19. In artificial aging hardening is done at:

a) Moderate temperature

b) Room temperaturec) Critical temperature

d) None

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24/101

20. Overnight parking shall be done:

a) Position the a/c in down wind direction

b) Position the a/c in up wind direction

c) As in (b) and light a/c must be tied

d) As in (c) and heavy a/c must be tied

21. In double start thread:

a) Lead is equal to pitch

b) Lead is 2 times of pitchc) Pitch is 2 times of lead

d) None

22. Hacksaw blade length is measured:

a) Between center of end holes

b) From the one end of blade to other end

23. Color of 2024-T Al-alloy is:

a) Grey

b) Green

c) Blue + yellowd) Red

24. In drawing which shows the position of part in relation

to other is:

a) Detail drawing

b) Assembly drawing

c) Installation drawing

d) Sectioning drawing

25. The minimum distance between two clamps of a/c tube

is:a) 16”

b) 24”

c) 8”

d) 36”

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25/101

Paper – II(OCT-2001)

1. Flare less tube fitting consists of following parts:

a) Body, sleeve, flared tube and nut

b

Body, sleeve and nut

c) Sleeve, nut and end terminals

d) Sleeve, shoulder, beaded tube and nut

2. Color of fire extinguisher fluid line is:a) Yellow

b) Brown or yellow

c) Red

d) Maroon

3. If two end terminals of PN junction is connected

through a conducting wire than:

a) A steady current flows from P-type to n-type

material

b

No steady current flows from wire

c) Steady current flows from n-type material to p-typematerial through wire

d) Any one of the above

4. A prime limitation with directly heated cathode is due

to:

a) Low frequency

b

Voltage fluctuation

c) High frequency

d) Phase

5. Bottle jack is used for:a) Removing a wheel or complete single wheel

assembly form one landing gear

b) Only removing brake unit

c) Only removing single unit

d

All of the above

6. During jacking the a/c outside the hanger:

a) Face the a/c tail to wing

b) Can be jacked in any direction

c

Surface should be hard and level

d) None


a) Straight flute reamer has a tendency to reduce

chatter

b) Buttoning reamer is tapped at bottom for starting

aid

c

Spiral flute reamer is tapped at bottom for aidin starting

d) None

8. In a PNP transistor application, a solid state device is

turned on when the:a

Base is negative w.r.t. the emitter

b) Base is positive w.r.t. the emitter

c) Emitter is negative w.r.t. base

d) Any one of above

9. Where is an AN-clevis bolt used in an airplane:

a) For tension and shear load conditions

b) Where external tension load are applied

c

Only for shear load application

d) Only for taking radial loads

10. To detect a minute crank using dye penetrant

inspection usually requires:

a) That a developer is applied to flat surface

b

A longer than normal penetrating time

c) The surface to be highly polished

d) Do not require excessive surface preparation

11. CPCP refers to:

a) Control processing of computer programme

b

Corrosion prevention and control programme

c) Corrosion prevention and cause detectionprogramme

d) Corroded parts corrugation programme


a) ATA – code 30 indicates, light

b

ATA – 61 code indicates propeller

c) ATA – 29 indicates power plant

d) All are correct

13. When capacitive reactance becomes equal to inductive

reactance of a circuit it is called:a) Phase-in

b) Phase-out

c

Resonant

d) Impedance matching

14. PFD in reference to NDT means:

a) Ultrasonic flow detection

b

Dye penetrant inspection

c) Anodic detection inspection

d) Eddy current testing

15. When a lead-acid battery is charged by constant

current method, then its full charge can be detected as:

a) Three testing of electricity gives same specific

gravity value

b) Voltage stops rising

c) Gassing will occurs rapidly

d

All above are wrong

16. What should be the first step of the procedure in

sketching an a/c wing skin repair:

a) Draw heavy guidenessb) May out the repairs

c

Block in the views

d) Draw extension lines

- 25 -


26/101

17. A cathode (election emitter) used in thermionic

emission must have following characteristics:

a) High matching point

b) High matching strength

c) Low work function

d

All above are correct

18. When bolts and rivets are used to joint the metal

sheets, then both should be protected from corrosion

by:

a) Applying grease on both

b

By plating bolt and rivets

c) By painting bolt and rivets

d) They must be placed separately approximately, 2-

times than the thickness of the metal being joined

19. Denting in metal tube is acceptable if:

a) Not more than 10% of tune diameter b

Less than 20% of tube dia

c) Not more than 40% of tube dia

d) Must be rejected if dent occurs

20. Primary control surfaces are:

a) Elevator, rudder, aileron and leading edge flap

b) Elevator, rudder, aileron and trailing edge flap

c) Elevator, slots, spoiler and flaps

d

Elevator, rudder and aileron

21. Crazing in plastics occurs due to:a) Manganese

b) Phosphorus

c) Silicon

d

Sulphur


a) Single needle pointed end scriber should be sharp

and surface should be checked for flatness with

straight edge

b) Single needle pointed end scriber should be sharp

c) 90º bend, scriber should not be sued as far aspossible

d

All of the above

23. If a line is divided into 25 division so that 25 divisions

of this line is equal to 24 division of another line so that

minimum distance that can be measured is equal to

difference between the value of each division. It is the

principle of:

a) DTI

b) Micrometer

c Vernier scaled) Rules

24. Magnesium surface should be cleared with:

a

Stiff-hog bristle

b) Steel wool

c) Crocus cloth

d) Steel wire brush

25. Which of the following frequency is used for space

propagation:

a) 2 KHZ

b) 30 MHZ and abovec) Upto 30 MHZ

d

20 KHZ — 200 MHZ

26. Fusible metals are used for tube bending has:

a

Low melting point and ductile

b) Hard and high melting point

c) Should expand on solidifying

d) Both (a) & (b) are correct

27. For very accurate readings during such calibrations the

thimble may be viewed under a microscope of:a

Low magnification

b) Medium magnification

c) High magnification

28. When hydraulic fluid lines and electrical line is passing

through same portion of a/c structure:

a) Hoses should be fitted above the wires and should

be secured to a/c structure.

b

Electrical wire should be fitted above and tosecure to a/c structure

c) A minimum of 4-distance should be maintainedbetween two and any of two can be unstable

above

d) Either of wire can be installed above and a

minimum of

29. In straight and level flight:

a) Lift = Drag & Thrust = Weight

b) Lift = Thrust & Drag = Weight

c

Lift = Weight & Drag = Thrust

d) None of the above

30. Black smith anvil is made by:

a) Machining

b

Forging

c) Extrusion

d) Both (a) & (b)

31. Crevice corrosion caused due to:

a) Metal and non-metal comes in contact and oil is

present between them

b) Contact between metal and non metal

c) Plastic and metal contact

d) Due to improper heat treatment

32. Modern computer consists of:

- 26 -


27/101

a) Hardware

b) Software

c

CPU, input/output

d) ROM, software and logic gates

33. Fretting corrosion occurs due to:

a

Stationary parts are subjected to relativemotion to each other

b) Direct contact with caustic liquid and battery fumesc) Improper beat treatment

d) Combination of tensile stress and corrosive

environment

34. Amount of electron that can be stored on capacitor is

proportional to:

a) Both plate area and distance between them

b) Plate area and does not depend upon distance

between them

c) Plate area and inversely proportional to distance

d Distance between plates and inverselyproportional to area

35. Resistance for a straight conductor does not depends

upon:

a) Length

b

Shape of class section

c) Temperature

d) Material

36. Working voltage of capacitor should be:

a) At least 20% higher than applied

b

At least 50% higher than applied

c) Equal to applied voltage

d) Less than 50% than applied voltage


a) Philips screw driver has sharp end

b) Reed and prince screw driver has blunt end

c

Reed and prince screw has larger area incenter

d) Both are interchangeable

38. For high speed a/c, it has wing:a) Thicker than low speed a/c

b

Thinner than low speed a/c and thick wing tip

c) Equal to low speed a/c


39. Digital system of computer is working on:

a) Decimal

b

Binary

c) Hexagonal

d) Octagonal

40. Close tolerance bolts:

a) Can be used in machined parts

b) Corrosion resistance area

c

Tight fit is permission

d) Both (a) & (b)


a) Prick punch is used to mark center mark for drilling

purpose

b) Center punch is used for removing binded rivets,

bolts

c Prick punch is used for making referencemarks on sheet metal

d) All are correct

42. If the thimble scale zero mark is above the zero mark

of barrel mark in micrometer, it indicates:

a) Positive error

b

Negative error

c) Zero error

d) None

43. Mark the correct statement:a) Turbo jet engines require shorter runway length

than turbofan engine

b) Turbo fan engines require lesser runway length for

take off than turbo jet engine

c) Turbo jet engine produces more thrust than turbo

fan

d

Both (b) & (c) are correct

44. After welding of butt joint:

a

Heat treatment is required as cold working tobe done

b) Heat treatment is not necessary as no cold working

is to be performed

c) With torch heat, heating the welded area only

slightly

d) It is not necessary

45. Mark the correct statement in respect to fuelling:

a) A/c can be grounded with carbon cabin

b) Refueling van can be grounded with metal chain

discharge behind the van

c) Both a/c and van are kept at euqal potential with a

wire

d

All of the above

46. How many terminals can be taken out from stud:

a) One terminal per stud

b) Two terminal per stud

c

Four terminal per stud

d) Any no. of terminals can be taken out from one

stud

47. While de-fuelling the sweep back wing a/c:

a Outboard wing fuel tanks should be emptiedfirst

b) Inboard wing fuel tanks should be emptied first

c) Empennage fuel tanks should be emptied first

- 27 -


28/101



a) Brinell hardness tester measure depth of

penetration and reading is directly indicated on dial

b) Bareel is sued for testing steel

c) Rock wel tester measure dia of penetration

d

None of the above

49. Depth of screw thread is:

a) Distance between root and creast measured ┴to axi

b) Distance between creast of one thread and creast ofadjacent thread

c) Equal to line joining creast and root


50. The ability to detect minute crack with radiography is

called:

a) Radiograph resolution

b

Radiograph sensitivity

c) Radiograph processing

d) Radiograph density

e) All

51. In plastics, minute crack occurring at weaker area due,

to applied load and extends both sides:

a) Crazing

b) Creeping

c) Fatiguing

d) Crevice corrosion

52. Turn buckle consists of:

a) Brass barrel with left and right hand thread

b) Stainless barrel with either left hand or right hand

thread

c) Only cadinium plated steel barrel and end fitting


53. In selecting rivets:

a

No type, and size depends on shear stress

b) As in (a) and tensile strength and does not

depends on bearing strength

c) Rivet dia should be twice the thickness of metal

being joined


54. If 1cm of main scale is divided in 20 equal division 24

division of main scale is divided in 25 equal division of

vernier scale, least count is:

a) 0.0002 cm

b

0.002 cm

c) 0.2 cmd) 2.0 cm

55. Backlash in the gear can be measured by:

a) D.T.I.

b) Micro meter

c) Thread gauge (filler gauge)

d) Telescoping gauge

56. Nomex and kevlar are used for making composites as:

a

They are used interchangeably

b) Both have some molecular sizec) Both have same internal structure

d) Both have same strength

57. Ballast is used for:

a

Bringing the c.g. within c.g. points

b) Leveling the lateral arm on central point

c) Both (a) & (b)

d) None

58. Leveling of a/c

a Lateral leveling of H/A is more critical than L/Ab) Jacking points are located on longitudinal axis

c) Leveling is always done on longitudinal axis

d) Leveling of lateral point is always done on

longitudinal axis

59. Annealing is done on heat treatable parts to:

a) Relief internal stresses set up during cold working

b) As in (a) and harden the metal

c

As in (a) and soften the metal


60. A micro switch will close or open a circuit with the

movement of:

a) 1 or more

b) 1 or less

c

Both (a) & (b)

d) None

61. Capacitance of a capacitor is directly proportional to:

a) Plate area and distance between plates

b

Plate area and inversely proportional to

distance between platesc) Distance between plates and inversely proportional

to plate area

d) None

62.

- 28 -


29/101

Paper – II(JUNE-2002)

1. Color of the fire, protection fluid line is (FAA-9A,102)

a

red

b) brown

c) green

d) brown and orange

2. A/c bolts are manufactured with always (FAA-9A,122)a) class 1 fit

b) class 2 fit

c

class 3 fit

d) class 4 fit

3. Which of the following precision instrument is used for

tightening the nut on bolt with proper torque is (FAA-

9A,138)

a) socket wrench

b

torque wrench

c) ratchet wrench

4. For repairing the oversize hole with sleeve, the hole

must be drilled oversized by (FAA-9A,138)

a) 3/16

b) 1/32

c

1/64

d) 3/64

5. 7 x 19 size of cable indicates (FAA-9A)

a) 7 wires of 19 strand

b) 7 strand of 13 wirec) 7 strand of 19 strand

d

none

6. Clevis bolt used in fork end of cable fitting

a

AN-CRS bolts

b) NAS-CRS bolts

7. Intergranular corrosion is normally caused by (9A,172)

a) internal stresses

b

improper heat treatment

c) electrolyted) all of the above

8. Spilled electrolyte of lead-acid battery is neutralized by

a) ammonia

b) baking soda

c) vinegar

d

both a & b

9. What type of battery charger is recommended for final

charging of a Ni-cad battery(9A,315)

a) Constant current charger b) Constant voltage charger

c) Both a & b

d

Any one of the above

paper2 previous year frm1998

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