ame ha exam dgca part 2

7/27/2019 Ame Ha Exam Dgca Part 2

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25. Dilution of air/fucl mix takes place in

a) ?b) inner swril vanesc) outer swril vanes

26. If electronic control box is not fitted on APU, then..

a) load control valve can be adjusted after shutdown of APUb) surge bleed valve operates on when no load control valvec)

27. APU event marker indicates

a) No of APU shutdownb) No of APU startsc) Over temperatured) Starting including hung start

28. The purpose of feedback cable used in Thrust Reverser is

a) to prevent fwd thrust selection, if they are in deployed conditionb) to bring back the thrust lever to idle in case, the doors move opposition to selection in either

fwd or reverse

c) both a & b are correctd)

29. In Hyd. Mechanical Torquemeter torque is senced and transmitted by

a) b)

30. FCU M.S.B.V. (?) high pressure symbol causes?

a) b)

31. For subsonic jet the inlet must have

a) b)


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32. Fire extinguisher test provides

a) b)

33. Compressor fitted with layer turbot in

a) b)

34. Compressor blade dia

a) b)

35. Thermal efficiency of piston engine is higher than the jet engine is due to

a) b)

36. JPT crosses limits due to

a) b)

37. Inlet of the hyd pump is blocked, then

a) b)

38. Efficient combustion cooling is

a) b)

39. Trimmer resister on EGT indication system ensures

a) a constant resistance valueb) increase / decrease in resistancec) adjust BPT as per requirements

40. In turbo shaft engine above 400 knots of speed increases (25000 ft altitude??)


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a) before sonic compression is lowb) compress ratio increases above sonic velocityc)

41. Back up to NTS

a) TSSb) Prop brakec) Safety coupling

42. Fig. Identify the component

a) Fuel pumpb) Oil pump

43. Fig. Identify the correct cockpit indication diagram.

a) b)

44. Fig. Find out the stall angle

a) b)

45. Match the following:

a) torque cam Turbine rotor

b) torque hange compressor

c) snoub turbine stator

d) lock taps combustion chamber

46. After the engine tight up, starter did not cuts off. The probable cause will be

a) starter cut off circuit is faultyb) starter drive spring is weakc) starter bleed valve did not closed) either a or b is correct


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47. Rotary air-oil separator is used in

a) MGB to drain the oil pack sumpb) AGB to drain the oil back to sumpc) Bearing sump to remove air from the oil drainedd) Located in the MGB near the vent outlet, throws the oil outward to drain back in to the sump

and allow pressurizing air.

48. Hot shift and cold shift of modern engine is determined by

a) CIT sensor probe conditionb) TIT sensor probe conditionc) Throttle lever angle and its position in conjunction with MECd) ITI sensor and CIT sensor condition.

49. Engine anti-icing system consists of ducting and

a) heats up fwd and rearward simultanieouslyb) heats up fwd and rearward in cyclic operationc) consists of dual butterfly valve, which regulates the hot bleet air in relation with a timer circuit.d) Can be used both flight and ground operation.

50. LOP fight illuminated during flight. What are the other parameters in connection with it, the pilot has

to check inside the cockpit indicators.

a) EGT and RPM indicator for the engine malfunctions.b) Ni rpm gauge and oil temperature gauge.c) Filter clogging light and EGTd) No indicator to check, but to cut off the engine

51. Igniter, plugs should not be touched with bare hand because

a) high radioactive material are used and it will cause radiation through the bodyb) tips are made up of tungsten carbid and it will get damagedc) d)


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H.A. FEB-2002

1. a) What are the emergency/alternative L/G lowering systems? Explain the agency hydraulic system

with diagram.

b) What are the gauges & indication used for proper operation of a/c fuel system?

c) What are the advantages & disadvantages of liquid O2 system in a/c? how is O2 bottle identified in

a/c?

2. a) What are the inspections to be carried out on a/c pulley?

b) Explain the performance of out servo airfoil with the neat diagram of its characteristic curve.

c) What are the advantages of auto brake system? What are the components of the system? Draw its

diagram.

3. a) What are the inspection carried out on control cables?

b) What are the advantages of swept back wings?

c) What is the purpose of safety relief valve in a/c pressurization system?

d) Which are the types of rescovers used in a/c hydraulic system?

4. a) Write stepwise repair of the damaged skin where the core of the honey comb material has also

been damaged?

b) What are the safety features incorporated in air conditioning system of the a/c?

c) Explain the smoke detection system used in cargo compartment. Describe with a neat diagram?

5. a) How will you detect leak in internal fuel system?

b) What is mach trim system & how it functions?

c) What are the precautions taken before operating flap system?

d) What safety features are incorporated in a/c flap system?


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6. a) Where external leaks are found in hydraulic system & here they are rectified?

b) How stall warning is fold in the cockpit?

c) What is Q feed in a/c control system? How is it sensed? What are the used of Q feel in a/c?


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MCQ

1. Composite with high compressive strength - boron

2. L/G lateral load taken by Side strut

3. Before fuel tank welding purge with steam

4. Composite for core PVC & urathene

5. Flag Out goes out of view when PWR is out

6. Primary structures Frame & longeron

7. Wing heating due to engine location will accelerate transition

8. Flap over load valve Retract flaps to prevent damage.

9. Velocity increases induced drag decreases

10. L/G down causes parasite drag

11. Principle of AOA indicting system not parallel to the true AOA of a/c

12. Definition wing bitt line

13. Roof skin thickness is less

14. Stressed skin metal sing subjected to velocity a group of rivet lead dipping

15. Damage on wing tip & radame will not affect a/c safety

16. Static pr line disconnected inside pressurized cabin ASI & altimeter read low

17. L/G down enabling by orifice check valve

18. Brake creeping contamination of brake linings / glazing

19. To check shock strut fluid level release air & remove valve

20. Cricket bull seam, rough surface high Reynolds number, lift

21. T/Reverser principleNewtons law

22. Fast erection of gyro hampered by

23. At the time of installation accelerometer should read + 1G


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24. Wind shield made of thermosetting plastic

25. L.E flap made of Al casting

26. Intergranular corrosion grain boundaries

27. Sherordizing process Dipped in molten Zn

28. In a/c, air enter reheater to turbine

29. Gyros terrain clearance

30. Spoiler Assist in roll control

31. Remissible deviation in magnetic compass

32. Compass caliberation, coefficient A is

33. Compass compensation divide by 8

34. If O2 system pr kept law moisture accumulating

35. Smoke clearance is part of A/c system

36. If peak temp goes high temp control valve modulate close

37. Purpose of fuel tank venting to prevent damage, collapse suction

38. A stripe mark rim to side wall of tyre. Slippage (creep) identification

39. Annealing makes st. steel removal stresses, soft machinative

40. Gear type hyd pump is +ve displacement pump because transfers uniform rol of fluid in each turn

41. Resistance type temp indicator used wheel stone bridge circuit

42. Shear between layer takes place within boundary layer

43. A/C nose tip stagnation pt, highest pr

44. Plain flap on deflection - effective AOA

1. What are the hydraulic rivets pressurized upward?

2. What are the GPWS operation modes?

3. What are some of the l/p & o/p of Air Data Computer (ADC)?


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4. What will happen when a metal strip comes under L/G?

5. How does a flap asymmetry system work?

6. How is the L/G selected up & down?

7. Explain the purpose & principle of operation of a shimmy damper?

8. How the tyres will be removed if both the tyres of one side are worm out?

9. Explain the process of jacking are side main L/G?

10. How the shock strut lower pt is rigged?

HA (OCT-2000)

1. Air conditioning distribution system for modem a/c?

2. a) Yaw damper b) Flap overload

3. a) Induced drag b) Dynamic stability

4. Hydraulic steering system with a neat sketch.

5. Types of fire & smoke detector & explain phart electric cells with a sketch?

6. Explain the operating principles of dilutes demand regulator?

7. Tyre burst incident insp?

8. a) Fuel vent system b) Fuel leak classification

9. a) During normal operation what are the corrosion under which hydraulic low quantity indication

occur?

b) What is the purpose of L/G transit cylinder & when it comes to operation?

10. Name the instrument which works in gyro & explain any one of them with principle & operation?


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HA (OCT-2001)

1. What is dihedral angle & how its affects the a/c stability?

2. How is operational check of L/G warning s/w carried out?

3. What are the pressurization modes in a modern a/c? How is manual control carried out?


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4. Write the names of the eqpa/system which receive Air baler computer o/p?

5. When are operational checks of Antiskid system carried out?

6. What is the function of coalscent lag in air conditioning system?

7. What is the manual reversal of flt control? Explain with an example?

8. With a neat diagram explain the cabin temp regulation system?

9. With a figure write the purpose of an adjustable tab?

10. What is the purpose of a sequence valve in hydraulically operated L/G system?

11. What is wing loading & how it diffects the landing speed of an a/c?

12. How is air vent provided to the fuel tank? Give a diagram of vent in modem a/c fuel tanks?

13. Why are hydraulic reservoirs pressurized & what are the sources for its presurisation?

14. What are the precaution taken while working on oxygen system?

15. What are the anti icing processes applied on modem a/c?

16. What are the safely features involved in design of a horizontal stabilizer of a modem a/c?

17. Why is surface coating applied on a re-in forced fabric component?

18. How is delamination check carried out on a honey comb material used in a/c construction?


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Paper-II September -1993

1. Alloy used for stringer is(a) 7075-T 76

(b) 7075-T 6

(c) 7075-T 36(d) 7075-T 36&7075-T 73.

2. A+ Aerodynamics center the potching moment Co-efficient is(a) dependent upon co-efficient of lift (CL)(b) dependent upon co-efficient of lift & CP(c) constant and independent of CL(d) Dependent upon CL& center.

3. Mark the incorrect statement.(a) For minimum drag the lift co-efficient is equal to its lift dependent drag

Co-efficient.

(b) At higher incendents lift arises from difference between reductions onupper & lower surface of wing.(c) For thin aerofoil of infinite aspect ratio in super sonic flow the aeroplynic center is at

50% of chord.

(d) Activity factor is measured on power absorption of Air serves.

4. Location of c.p is a function ofRef page automotive flight construction.


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(a) Camber (b) CL (c) Camber & CL varies with angle of attack(d) Camber varies with angle of attack

5. The angle of attack at which fail moment is equal to using movement(a) Neutral point (b) Trim point (c) Stick fixed point (d) Stick free point @ s/p.

6. Degree of longitudinal stability is effected by relative position of both(a) Center of pr & aerodynamic center (b) CP & CG(c) Aerodynamic center & C.G (d) Aerodynamic center & angle of attack 95/F.

7. Static Margin is the distance of 95/F(a) Aerodynamics center to neutral point(b) C.P is neutral point (c) CP&C.G(c) CG to neutral point

8. Tab used at high speed(a) Servo tab(b) Balance tab (c) Spring tab (d) Trim tab 95/F

STRUCTURE

9. The station number is distance in enhance from

(a) A yew reference point forward of fuselage(b) Reference point on the nose tip(c) Reference point at wing of empty a/c.(d) Reference point at the most forwarded C.G point of empty a/c

10. The languorous are

(a) Rolled HAT section(b) Extracted z sections(c) Rolled & extracted z sections(d) Rolled & forged z sections.

11.Extensive use of metal biding in a/c constructions

(a) Fatigue resistance only (b) Corrosion resistance of only power(c) Fatigue & corrosion resistance (d) corrosion resistance wire


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12. Inboard & king of taper rolled provide

(a) Max thickness area of heavy loading(b) Min thickness area of reduced loading(c) Thickness skin at root and across fuselage.(d) Thickness at high tort ional loads

13. Plate between front and rear span

(a) Has thickness tapered(b) Is butt spliced(c) Has tapered thickness and is but spliced(d) Has tapered thickness with flush fastness

14. Alloys use in a/c are hardened by

(a) Cold working (b) Aging (c) Heat treatment(d) Chemical treatment.

INSTRUMENTS

15.In sensitive ASI the scale can be made liner by

(a) Introducing banana shaped slat in the toothed wheel, which meshes with pointer percon

(b) using turning spring (c) Keeping capsule in mathematically curved shape

(e) All the above.

16.Max safe airspeed criclicator

(a) Does not require true temperature compensation(b) Require true max safe and total Airspeed(c) Has a subsidiary scales which can be set to max speed of given a/c and structure(d) None above is correct17. Mark the correct statement

(a) There is no apparent wander of gyro at equator


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(b) If gyro is moved from north pole to south pole around earth surface than the apparent wonderwould change from counter clock wise to clock wise

(c) Error due to apparent wonder at any point is to 15Lat/hr (latitude in degree)(d) All the above are correct.

18. In ratio meter type instrument

(a) Coil carring stranger current moves in stronger part of it

(b) No effect of flucations of input voltage(c) Controlling force provided by spring is quit stronger and has to counter balance

19. Artificial Horizon

(a) Has a complete freedom 360 in roll and 85 freedom input is hat it is difficultBut not impossible topple the horizon

(b) Has a wonder rate of gyro less than 15 per hour(c) Has a gyro axis titled forward about 15 to compensate to rate of turning(d) All the above are correct.

20. If a/c alternates on easterly heading the compass will indicate

(a) Apparent turn towards north(b) Apparent turn towards south(c) Doping of compass(d) None of the above.

21. Hear spring is a instrument

(a) Is provided to negative back lash and statement(b) Serves as controlling force against reflecting force (c) Is strip of Nl, Fe alloy to sensitive to allows

greater amount of flux between the pole to pole temperature when temp increases + statement

(d) None of the above

22. Air speed indicator measures

(a) Dynamic pr (b) Dynamic-static pr(c) Dynamic+static pr (d) Staticpressure

23. Cabin altitude indicator is

(a) An alternator calibrated to some pr latitude test as a normal altimeter


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(b) A bounden type pr gauge(c) Contains siphon open carbon(d) None of the above

24. Rate of climb indicator is

(a) A different pr gauge to indicate rate of altitude change(b) Not a pr gauge sime operation depends upon static programme(c) Having, is most cases, a logarithmic scale as it is advantageous in start & statement(d) Effected by position error

25. Rate of climb indicator

(a)

Has two springs for selling range, which bears on stem connected to center piece.(b) With range setting spring to extent force of capsule to achieve relation between capsule prdeflection characteristic

(c) Has spring screws the upper row of screws to upper row of spring control rate of decent calibration(d) All above the are correct

26. Dip magnetic compass

(a) Is caused by the horizontal component of earths magnetic field(b) Is called by vertical component of earth magnetic field(c) Is max at equator & min at poles(d) Both a & b are correct

27.If pilot tube is blocked airspeed indicator reading while sending will

(a) Decrease (b) Increase (c) under speed (d) over head

28.ASI indicator can be modified to read

(a) Equivalent air speed (b) Mach numbers (c) True air speed(e) All the above

AERO POLIT

29. In two phase induction motor type of serve motor of an auto pilot the reference phase is supplied by


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(a) 26v 50 Hz (b) 115v, 400Hz (c) 240v, 400Hz (d) 220v, 50

30.When automatic control is selected in electro HYDRAULIC auto pilot system

(a) The engage com is out of detent(b) Engage signal is fed to the 5.0 volts(c) a & b(d) Pilot control valve is operated

31. The component different between position control servomechanism and speed control mechanism

is

(a) Serve motor (b) Techno generator (c) Potentiono meter (d) error detector

32.Mark the correct statement

(a) Yaw damper will not oppose pedal movement of pilot(b) The speed monitor identifies speed a/c for application of control(c) In disengage condition of electro prumatic Autopilot the lines and pistons are retracted.(d) Under normal condition of load, the torque applied to input member by servo meter is

transmitted to intermediate member.

33. When control wheel is released in control wheel sterling the automatic control

(a) Holds a/c at originally selected altitude(b) Is provided by a pilot & Roll forces simultaneously pilot through force transactions(c) Holds the a/c a newly established altitude(d) Both b& c correct.

34.Wing leading edge using control achieved by

(a) PrerumaticThermal & thermal system(b) Thermal & electrical system(c) Electrical & Alcohol system(d) All the above

35. Thix tropic Agent

(a) Decreases stress(b) Decreases temp sensitivity


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(c) Increases stress(d) Increases temp sensitivity

36. Expansion slot in rotary brake discus assembly

(a) Prevents excessive heat description(b) Prevents warping from heat(c) Enhance heat disruption(d) Increases efficiency of brakes system when brakes area

37. Mark the correct statement

(a) Pr demand type of regulator is used for both crews(b) Pr demand type of regulator is used only for crew

38. Upper & lower bearing in main L/G shock strat programme

(a) Only sliding surface between inner Souter cylinder(b) Only air seal between inner & outer cylinder(c) Only sliding surface with minimum friction(d) Sliding surface and air seal between inner souter cylinder

39. In HYD main L/G system the rate of gear extension is slowed by

(a) In build snubber design(b) Check valve is upline(c) Orifice check valve in down line(d) Orifice check valve in upline

40. What prevents L/G from being retracted after has lowered

(a) Lock strut (b) Down lock & Lock strut (c) Down lock (d) Down lock & weight of the a/c

41. Some relief valves provide an overflow features to

(a) To provide pr lock (b) Prevents cavitations (c) Test reverse flow chalk valve


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(e) Compensate for temperature variation

42. Mark incorrect statement

(a) HYD fuse is device to seal broken HYD line(b) Follow up selector valves are used in L/G system(c) Pr relief valves are priority valve(d) Sequence valves are sprout type and by pass check valves

43. In angular type HYD pump the angle between cylinder block axis and drive shaft axis can be variedby

(a) Pr control unit(b) Spring unit(c) Contrail cylinder(d) Swivel yoker

44.When sprout type hydraulic pr regulator is in KIKKED in piston the directional sprout is ina position to direct pr to

(a) The pilot valve to keep it open(b) The unloading valve to keep it closed.(c) The unloading valve to it open(d) The pilot valve to keep it closed.

45.Fittings used to attach the MLG to wings are secured with

(a) Interference fit(b) Closed tolerame fit(c) Both a & b(d) Permanent type


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46. Antiskid system

(a) Can use mechanical fly wheel type of skid detector(b) Can use electrical & selectronic type skid detector(c) Provides optimum braking and avoids dragging of wheel(d) All the above are correct

47. Co lour Hyd system tabbing is

(a) Yellow, blue, Yellow(b) White, blue, white.(c) Blue, green, blue(d) Light blue, Yellow, Colorless.

PRESSURISATION

48. A line from isobaric control valve to the throat of ambient venture

(a) A low pr reference to manual controller(b) A low pr reference to auto controller(c) A high pr reference to manual controller(d) A high pr reference to auto controller

49. The rate of selection of pressurization system regulates rate of air flow between

(a) Control chamber & venture(b) Rate chamber & venture(c) Controller chamber & rate chamber


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(d) Rate chamber & manual controller

50. Mark the correct statement

(a) Vacuum relief system provides automatic control signals only(b) Vacuum relief system provides both auto & manual continue signals only(c) Positive pr. Relief valve is built in to the flow valve(d) Cabin barometric selector control landing field altitude

51. The purpose of negative pr relief valve is to

(a) Select pressurization at stations when aerodrome elevation below sea level(b) Allow outside air to enter fuselage when out side pr is greater than inside pressure(c) Allow out flow to open when inside pr greater than ambient(d) Half differential pr. Relief valve in case ambient pr become less than pr inside airplane

52.Turbine engine air is used for air conditioning & pressurization cooled

(a) Compressed air (b) Ram air (c) Conditioned air (d) Bleed-Air.

53. How the cabin of an a/c usually controlled

(a)

By pressure automatic out flow that dumps all pressure excess of the amount for which it is

(b) By pr- sensitive valve that consents output of pressurization pump.

54. Cooling device in planes consist of

(a) Fam air, Ram air actuator, ACM


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(c) For controlling cabin temp on ground(d) For ground operation of ventilation systems

59. A small orifice in manual control pressurization valve provides

(a) High pr reference for manual controller(b) High pr reference for auto controller(c) A low pr reference for manual controller(d) A low pr reference for auto controller

1. Centre of pressure is the point From which total lift four outs.


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2. The Static margin is The CG location which produce neutral statics

3. If an a/c has directional static custability, displosure in YAW will cause Directional devergenic

4. The purpose of primary stups in flight controls system is to Restrict the moment of the control to

their current range

5. If a gyroscope positional at a latitude has an opp drift of 15 sin its input axis would be alighned local

component of earth rate.

6. The effect of an ocillation or wobbling of a gyrosonic spin axis is known as nutation

7. In connection with command signal processing, the function of adapting control system response to

an a/c handling qualities known as gain programming.

8. In order to derive D.C. control signal having phase relationship as an A.C. signal, it is accurate for

signals to be - demodulated

9. In terms of pressure ratio, mach no is equivalent P-s/s

10. Heading hold signal from auto flight control system are supplied to the roll channel

11. AZIMUTH information during an ILS approach is provided by signals from localiser transmitter.

12. A parallel connected servo motor is one which moves both appropriate flight control surfaces and

pilots control.

13. The to from indicator of an HIS is in operates which only the VOR mode is selected.

14. When failure data signals occurs, indication is given on EFIS display units by flags displayed in -

yellow.

15. Logic gates ref page 275 auto flight

ame ha exam dgca part 2

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