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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
29. Which statement is correct
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
32. Which statement is correct
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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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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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
c) both (a) & (b) are correct
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
c) both (a) & (b) are correct
d) all are incorrect
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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b) allowing the solder to flow evenly
c) both (a) & (b) are correct
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
d) all are incorrect
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
d) all are incorrect
(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
d) all are incorrect
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
d) all are incorrect
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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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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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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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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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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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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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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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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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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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
16. Mark the correct statement:
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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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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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
7. Mark the correct statement:
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
12. Mark the correct statement:
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
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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
22. Mark the correct statement:
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:
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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
37. Mark the correct statement:
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
d) Any one of the above
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)
41. Mark the correct statement:
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
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d) Any one of the above
48. Mark the correct statement:
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
d) None of the above
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
d) None of the above
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
d) None of the above
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
d) None of the above
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.
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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