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Module 11B > 11.13 - Landing Gear - 8q > Flashcards

11.13 - Landing Gear - 8q Flashcards

1
Q

What is meant by ‘Positive Camber’?

A

Postive camber = Bottom of the wheel closer

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2
Q

What does the oil in a shock absorber do?

A
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3
Q

What would be the likely cause if the MLG is lowered down but begins to retract?

A
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4
Q

What does the Cam Plate do?

A
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5
Q

How can aquaplanning be reduced?

A
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6
Q

What lights do you get when the gear is up and locked?

A
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7
Q

What is the purpose of the gas in the shock absorber?

A
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8
Q

How would an engineer collapse a strut on purpose?

A
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9
Q

What is the purpose of the Metering Pin?

A
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10
Q

What is the purpose of the side strut?

A
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11
Q

When is the L/G lock solenoid energised?

A
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12
Q

Gear down and locked but there is a red light indication, what is the cause?

A
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13
Q

What does the Brake Debooster valve do?

A
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14
Q

What does the breaker strip do?

A
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15
Q

Where is the lightest part of the tyre?

A
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16
Q

What are the 2 advantages of a Composite Brake Unit?

A
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17
Q

If the Anti-Skid fails, what other problem does this cause?

A
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18
Q

What is Optimum Braking?

A
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19
Q

What should be done as a safety precaution when removing the wheel on a split rim?

A
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20
Q

Aquaplanning on a four wheel bogie occurs on which wheels?

A
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21
Q

What should you do with a tyre that is contaminated by oil?

A
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22
Q

Internal leakage in brake mast cylinder results in what?

A
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23
Q

Auto Brake only works if what other system is working?

A
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24
Q

When brake pressure is released, how do the pads return to normal?

A
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25
Q

The loose flange of a wheel hub is attached by what?

A
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26
Q

A segmented rotor does what?

A
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27
Q

Why is a Non magnetic prox sensor checked?

A
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28
Q

Breaker strip is what?

A
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29
Q

Why is there Alternate brakes?

A
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30
Q

What happens if the Tachometer on Main wheel fails?

A
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31
Q

What is the Red dot on a wheel?

A
32
Q

What is the Green dot on a wheel?

A
33
Q

The Fuse plug melts at what temp.?

A
34
Q
A

bottom of wheels closer together

35
Q
A

The separator has bottomed, but there should normally be no fluid

36
Q
A

heat generated in operation of the system and seals used

37
Q
A

may be used to slow down undercarriage extension

38
Q
A

control the speed of the rebound

39
Q
A

permit free flow of during compression and restriction of oil during extension

40
Q

.

A

vertical at full working pressure
Not sure I think A

41
Q
A

out of adjustment sensor

42
Q
A

caused by a leaky seal

43
Q
A

a faulty selector valve

44
Q
A

a leaky selector valve

45
Q
  1. The correct procedure to collapse a strut for servicing is to:
    1/ unscrew the gland seal nut
    2/ release the oil bleed screw
    3/ release the air pressure through the air charging valve
A

3/ release the air pressure through the air charging valve

46
Q
A

straightens the nose wheel on take-off

47
Q
A

down selection to up selection

48
Q
A

increasingly retard the flow of oil as the strut is compressed

49
Q

The side strut on a main gear installation:
1/ gives lateral support to the shock strut
2/ gives longitudinal support to the shock strut
3/ provides a forward hinge point of gear retraction

A

1/ gives lateral support to the shock strut

50
Q
A

sequence valves

51
Q
A

on the ground

52
Q
A

to allow a free castoring action

53
Q

A red light indication on a landing gear that is down and locked may be:
1/ an incorrectly adjusted down-lock micro switch
2/ an incorrectly adjusted up-lock micro switch
3/ a short circuited down lock micro-switch

A

1/ an incorrectly adjusted down-lock micro switch

54
Q
A

extra sensors are fitted on the gear

55
Q
A

retard the flow of oil as the struts are compressed

56
Q
A

allows for damping

57
Q

.

A

b) for over temperature protection… Think wrong
Has to be A

58
Q
A

a) to provide strength

59
Q
A

the lighter part of the tyre

60
Q
A

adjacent to the charging valve

61
Q
A

have less weight than normal brake units and have increased efficiency at high temperatures

62
Q
A

tubeless tyres

63
Q
A

Tyre moving around the wheel

64
Q
A

brakes release on drop in wheel RPM

65
Q
A

Vertically between bars

66
Q
A

Skid control

67
Q
A

there is no skidding or rapid decelerations

68
Q
  1. Internal leakage in a brake master cylinder unit can cause:
    1/ Fading brakes
    2/ Slow release of brakes
    3/ Pedal to slowly creep down under foot pressure
A

3/ Pedal to slowly creep down under foot pressure

69
Q
  1. The autobrake system:
    1/ works after takeoff during gear retraction to stop the wheels
    2/ depresses by hydraulic actuators to stop the wheels
    3/ works only if the anti-skid system is operative
A

3/ works only if the anti-skid system is operative

70
Q
A

autobrake system cannot operate

71
Q

When brakes are released the friction pads of a disc type brake unit are returned to the off position by:
1/ Hydraulic pressure on the reverse side of the pistons
2/ Vibration caused by wheel movement
3/ Reaction of springs compressed when the brakes are applied

A

3/ Reaction of springs compressed when the brakes are applied

72
Q
A

circlip or spring locking device

73
Q
A

limit distortion

74
Q
A

that the pad creates the correct value response

75
Q
A

Plies between the casing and the thread

76
Q
A

that they are within the specified distance, but not touching the sensor i.e ‘NEAR’ condition

Module 11B (42 decks)

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