Paper II set-VIII,22/09/2015

1.Backlash between gear teeth is measured by a) DTIb) feeler gage or thickness gagec) micrometer gage

2. Elevator is used to a) for later controlb) rotate a/c around lateral axisc) stabilize a/c about lateral axisd) both a & c

3. Which drag does not contribute lifta) induced dragb) parasite dragc) wave balance drag

4. Angle of incidence is defined as a) angle between longitudinal axis & relative windb) angle between longitudinal axis & chord linec) angle between chord line & relative wind

5. In steady & level flight, the dynamic pr. at the tip of the nose of the a/c is a) maximumb) minimumc) zerod) always more than static pressure

6. Torque tube is a) act as rotating member in cable systemb) compression & tension both load can withstandc) used alongwith bell crankd) convert rotary motion alongwith bell crank

7. 7 X 9 strands withstanda) 7 strands of 19 wires eachb) 19 strands of 7 wire eachc) 7 strands of 7 wire each

8. Corrosion on high stressed skin can be removed bya) high Al polishb) by wire brushc) buffing with fine buffing compound on cloth bufferd) polish only

9. In an electrical ckt. If capacitance is 100 microfarad and charge is 10 microcoulomb, then voltage rating would be a) 100 voltb) 10 voltc) 1 voltd) 1000 volt

10. Parallel bar is used for a) for raising the workpieceb) as in a) and seat squirely with base of visec) measuring the surfaced) none

11. Given fig. indicatesa) double pole double throw

b) double pole single throw switchc) single pole double throwd) push pull s/w

12. Given fig. indicatesa) cabinet fileb) half round filec) knife file

13. Given fig. indicatesa) buckling bar not fit properlyb) excessive drivec) upset head

14. Schematic diagram indicatesa) does indicate individual componentsb) use in trouble shooingc) aid in installed position

15. Proper cause of intergranular corrosiona) improper heat treatmentb) improper weldingc) corrosion due to non-metal & metal contact

16. In 3Q a/c generator, if 8 pole & 1600 rpm is used then frequency will be a) 800 Hzb) 1600 Hzc) 400 Hzd) 1200 Hz

17. As per ATA code, hydraulic fluid, pneumatic, fire & engine indicating isa) 29, 26, 36,77b) 77,29, 36, 29c) 29, 36, 26, 77

18. In workshop parallel bar is used to a) raise the objectb) raise the object one sidec) as in a) & in parallel to the vise

19.If one wheel is to be jackeda) heavy jack is usedb) remaining wheel to be chokedc) wheel should be raised by 6 to 8d) no choking is required

20. Shunt a/c motor is used to drivea) landing gearb) gyro & servo motorc) tap

21. Ac motor is used in respect of DC motor because ofa) advantage of AC motor over DC motorsb) less weightc) less maintenance & costd) brush & commutator is not used in AC motor

22. In transformer the induced emf in secondary coil depends up on a) number of turns

b) frequencyc) frequency & no. of turnsd) frequency, flux & no. of turns

23. EMF induced in transformer depends up on a) flux linkageb) flux cutc) magnetic field strengthd) rate of change of magnetic flux linkage

24. Meshing gear havinga) same pitch numberb) same sizec) same dedendum

25. Copper bar in three phase motor is placed deep in stator coila) improve power factorb) high starting torque providedc) high efficiency is obtained

26. In semiconductor having resistancea) finite resistance at OCb) finite resistance increase with temperaturec) finite resistance decrease with temperature

27. Negative coefficient of resistancea) thermistorb) transistorc) Insulator

28. Universal building block is a) OR gateb) NOR gatec) XOR gate

29. Seeps in fuel tank is specified bya) low seep, seep, heavy seepb) stain, low seep, heavy seep, running leakc) running leak, leak

30. Annealing is done for a) maximum ductilityb) softnessc) low strengthd) ATA

31. Which is pure wrought alloya) cylinder headb) pistonc) cylinder barreld) alclad sheet

32. Damping in instrument efficiently done by a) fuid frictionb) airc) eddy currentd) both b) & c)

33. The hydraulic fluid used in L/G brakes system has properties of a) high freeze pointb) high flash point

c) low boiling pointd) ATA

34. Welding indicatesa) V-weldb) U-weldc) double beveld weldd) J-weld

35. In bevel geara) motion is transmitted at an angle to the shaftb) as speed reducesc) take heavy loadd) both b & c

36. Circular Pitch (C.P.) in gear is identified as a) distance between two adjacent teethb) distance between two adjacent teeth along the pitch circlec) it is similar to the transverse pitch

37. Conductor having 4Ω resistance, stretched twice in length then new Ω would bea) 4 Ωb) 8 Ωc) 16 Ωd) 12 Ω

38. In a inductor if no. of turns is increased & core length is doubled than self inductance of inductor would be a) doubledb) triplec) halfd) remain same

39. Mark the correct statementa) open end belt take more loadb) cross belt take more loadc) cross between is more efficient than C.P. end belt

40. Which file is used for making slot & keywaysa) knife fileb) square file c) triangular file

41. Brazed welding isa) called bronze weldingb) base material does not fusec) it is special welding having between bracing & welding operationd) both a) & b)

42. Aluminium is welded by a) oxidizing flameb) reducing flamec) neutral flame

43. In soldering overflow is avoided bya) clay material surrounded by all the weld areab) clay material doest not fusec) clay material overheated

44. In Lead acid battery spilled electrolyte is neutralized bya) sodium bicarbonate & waterb) as in a) & ammoniac) vinegard) NOTA

45. Titanium is heat treated to a) relief internal stressesb) annealing for further cold workingc) thermal hardening to improve strengthd) ATA46. In commercial annealing, cooling is done ina) waterb) airc) mica

47. How can dimensional inspection of a bearing in a rocker arm be accomplisheda) depth gage and micrometerb) thickness gage & push arborc) telescope gage & micrometer

48. In steel alloya) color indicate alloy & stripe indicates carbon contentb) color indicate carbon content & stripe indicates alloyc) NOTA

49. If two battery A & B such that A having greater plate area than B, then internal resistance of A will be a) greater than Bb) smaller than Bc) equal to Bd) NOTA

50. MTCSa) In nacelle it is measured from either forward or behind the front spar of the wing and perpendicular to designed water lineb) water line measure height in inches in parallel to the horizontal planec) butt line measures width from left to right of parallel to the vertical centre lined) ATA

51. Color of 100 LL fuel pipe is identified by a) red band & blue stripb) black bandc) red band green stripd) black band yellow strip

52. color of fuel linea) red colorb) black colorc) brown color

53. Jet fuel is susceptible to rust, dirt etc.,a) water is found in either suspended or in dissolved formb) if cloudiness is found in top but disappear at bottom, indicate air pressure

c) microbial organism feeds on hydrocarbon

54. MTCSa) read & prince screwdriver havingblunt pointb) Phillips screw driver having blunt pointc) Phillips s/d driver is bluntd) Phillips s/d driver is pointed 55. Kickoff’s law applicable for a) A.C circuitb) D.C circuitc) both a) & b)d) both A.C & D.c excluding capacitive & inductive element

56. Fatigue crack is a) ultrasonic methodb) magnetic particle methodc) eddy current methosd) ATA

57. In composite impact damage & water disband is inspected by a) thermal halographb) laser halographyc) ultrasonicd) x-ray

58. In composite, for maximum flexibility core material used is a) honey combb) plastic foamc) resind) ATA

59.In Rockwell testng measure a) resistance to penetrationb) measuring ball impressionc) depth of penetrationd) both a) & c)

60. Barcol tester is used for a) steelb) aluminiumc) b) & copper

61. Poor welding caused due to a) excessive pressureb) misalignment of electrodec) both a) & b)d) excessive current

62. Small a/c is tie downa) after each flightb) as per atmospheric conditionc) at end of each day

63. In rigging & alignment checka) a/c must be leveled on jackb) always not needed for levelingc) cable tension is measured by control at neutrald) ATA

64. High resistance load in electrical circuit is checked bya) Ohm meter in DC ohmb) DC battery with lampc) magneto synchronizerd) both b and c

65. Classification of computera) capacity & functionb) as per capacity & connectionc) as per capacity, function & connection

66. Capacitance of capacitor does not depends up on a) plate areab) plate separationc) plate thicknessd) dielectric material

67. Gap between soaking & cooling causesa) re-precipitationb) strength increasesc) ductility increases

68. For thread makinga) Die & tap is usedb) on lathe machine producedc) on rotating machined) ATA

69. PN junction diode does not used in a) rectifierb) amplifierc) light detectiond) for light radiation

70. Main memory of computera) ROMb) RAMc) hard diskd) floppy

71. For precision drive we usea) torque wrenchb) socket wrenchc) both a) & b)

72. In micrometer, zero of thimble is above the datum, then it isa) +ve zero errorb) –ve zero errorc) zero error

73. PN junction diode, not used asa) rectifierb) for radiationc) to deflect intensity of lightd) to amplify AC low signal to high

74. If drill size is not given on drill, than it can be found bya) drill gageb) drill plate gage having fraction on left & number on right

c) none

75. In radiography, density defined asa) relative of two adjacent area brightnessb) degree of blackening of radiographc) both a) & b)

76. Resistance of conductor does not depend up on a) lengthb) shapec) aread) temperature

77. The load at which material break, it show:a) strainb) malleabilityc) yield pointd) ultimate tensile strength

78. Ultrasonic testing is used to checka) fatigue crackb) inclusion & cavities in castc) delimitationd) ATA

79. The unit of emf isa) voltb) amperec) wattd) none

80. Aircraft bolts are usually manufactured with aa) class 1 fit for threadsb) class 2 fitc) class 3 fit for threadsd) class 4 fit

81. Indentification of class B Fire Extinguisher is (9A-504)a) redb) yellowc) greend) brown

82. Color of extruded bar of aluminium alloy in 5 inches is a) red marking near the end of each length b) blue marking near the end of each lengthc) stamp of blue and white colord) none of the above

83. What size of the hole should be bored before cutting a 2.5” internal acme thread having 3 thread per incha) 2.5”b) 2.1667”c) 3.5”d) 2.75”

84. Mark the correct statementa) light a/c is tied down after every flightb) light a/c is not require tied downonly when strong air being to flow then tie downc) both a & c

85. Dis-integrator is used to a) making hole in conductive metalb) making hole in non-conductive jobc) making hole clearly and fairlyd) both a & c are correct

86. Ohm’s law does not holds for:a) Diodeb) Mercuryc) P – N emulsiond) Both (a) & (c)

87. Speed of motor increases, when load decreases, current decreases because of:

a) Frictional loss b/w motor moving partsb) Frictional loss b/w field winding and other partsc) Induced back emf increasesd) None

88. During inspection after swaging if it is found that:a) Shank dia is too large that means it is over swagedb) Shank dia is too small that means it is over swaged it should be rejectedc) Shank dia too small it means under swagedd) Shank dia is too large it means under swaged and it should be rejected

89. Flab tab is:a) Balance tabb) Trim tabc) Servo tabd) None

90. Geiger counter is used:a) To check the condition of a/c after heave landingb) To check the condition of a/c after flight through turbulencec) To check penetration of a/c by ultraviolet raysNone

91. Lift depends on:a) Wing areab) Wing shapec) Square of velocity and density of aird) All of above

92. Mark the correct statements:a) Lateral leveling in heavy airplane is more criticalb) Leveling lateral point always on longitudinal axisc) Leveling is always done in longitudinal axisNone

93. Which of the epoxy resin is fire resistant:a) DGEBAb) Flexiblec) Halogenatedd) Cyclo aliphatic

94. Marking of fluid line is given by:a) Color and geometrical shapeb) Show the function and direction of fluid flowc) Color and wordsd) All of the above

95. Mark the correct statement:a) Carbon graphite has more compressive strengthb) Kevlar graphite has more compressive strengthc) Carbon graphite less more tensile strength than Kevlard) Carbon graphite has low compressive strength

96. Identify the figure:a) Lead & zincb) Rubberc) Cork , felt , fibre

97. Stress corrosion is likely to occur it:a) Alb) Mgc) Stainless steeld) Al & Stainless steel

98. Counter sinking is the operation of:a) Producing an angular surface at the end of holeb) Made in many diameter sizes and anglesc) Making screws and bolt to flush with the surfaced) All

99. Shear nut thickness depends on:a) As per the dia of nutb) Hall of the usual nutc) As per the location of nutd) None

100. When re-torquing is required for a nut:a) Relightened the nut w/o backing off the nutb) Relighten the nut with backing of one turn of nutc) Relighten the nut with backing of two turn of nutd) Never re tighten the nut

101. Which fire extinguisher is best for electrical fires:

a) Waterb) CO2

c) Foamd) All