Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

A&P - Airframe > Aircraft Landing Gear Systems > Flashcards

Aircraft Landing Gear Systems Flashcards

1
Q

Exposure to and/or storage near which of the following is considered harmful to aircraft tires?

A

Fuel, oil, ozone, electrical equipment, hydraulic fluid and solvents

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What would be the effect if the piston return spring broke in a brake master cylinder?

A

The brakes would drag

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

In brake service work, the term ‘bleeding brakes’ is the process of

A

withdrawing fluid from the system from the purpose of removing air that has entered the system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

To prevent a very rapid extension of an oleo shock strut after initial compression resulting from landing impact

A

various types of valves or orifices are used which restrict the reverse fluid flow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

A pilot reports the right brake on an aircraft is spongy when then the brake pedal is depressed in a normal manner. The probable cause is

A

air in the brake hydraulic system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Aside from an external leak in the line, what will cause parking brakes to creep continually to the OFF position?

A

An internal leak in the master cylinder

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Why do most aircraft tire manufacturers recommend that the tubes in newly installed tires be first inflated, fully deflated and reinflated to correct pressure?

A

To allow the tube to position itself correctly inside the tire

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

The metering pins in oleo shock strut serve to

A

retard the flow of oil as the struts are compressed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What action should be taken whenever maintenance is performed that will affect the landing gear system performance?

A

The aircraft should be placed on jacks and a retraction test should be performed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

When working with high pressure, high performance tires, why is it recommended to deflate tires when removing wheels from the axle

A

To ensure safety in case of defective wheel or broken tie bolts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The braking action of a cleveland disk brake is accomplished by compressing a rotating brake disk between two brake linings. How is equal pressure on both sides of the disk assured?

A

By allowing the caliper to float to automatically equalize as pressure is applied to the rotor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

If it determined that spongy brake action is not caused by air in the brake system, what is the next most likely cause?

A

Deteriorated brake hose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Many brake types can be adapted to operate mechanically or hydraulically. Which type is not adaptable to mechanical operation?

A

Expander tube type

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

A brake debooster valve is installed in systems where the high pressure of the hydraulic system (3000 PSI) is used to operate brakes

A

that are designed to work with lower pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

A stripe or mark applied to a wheel rim and extending onto a sidewall of a tube type tire is a

A

slippage mark

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

When bleeding aircraft brakes, one of the indications that the air has been purged from the system is

A

firm brake pedals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Overinflated aircraft tires may cause damage to the

A

wheel flange

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Debooster valves are used in brake systems to

A

reduce the pressure and release the brakes rapidly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

The repair for an out of tolerance toe-in condition of main landing gear wheels determined not to be the result of bent or twisted components consists of

A

inserting, removing or changing the location of washers or spacers at the centre pivotal point of the scissor torque links

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

On a air valve core stem, what indicates high pressure type

A

embossed letter ‘H’

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The primary purpose for balancing aircraft wheel assemblies is to

A

prevent heavy spots and reduce vibration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Power boost brake systems are used on aircraft that have

A

high landing speeds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

On all aircraft equipped with retractable landing gear, some means must be provided to

A

extend the landing gear if the normal operating mechanism fails

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

An automatic damping action occurs as the steer damper if for any reason the flow of high pressure fluid is removed from the

A

inlet of the steering damper

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What is the purpose of the torque links attached to the cylinder and piston of a landing gear oleo strut?

A

Maintain correct wheel alignment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

The removal, installation and repair of landing gear tires by the holder of a private pilot certificate on an aircraft privately owned or operated is considered

A

preventative maintenance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Aircraft brakes requiring a large volume of fluid to operate the brakes generally

A

use power brake control valves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What is one effect a restricted compensator port of a master cylinder will have on a brake system?

A

The restriction will slow the release of the brakes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

When an air/oil type of landing gear shock strut is used, the initial shock of landing is cushioned by

A

the fluid being forced through a metered opening

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Internal leakage in a brake cylinder unit can cause

A

fading brakes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

A sleeve, spacer or bumper ring is incorparated in a landing gear oleo shock strut to

A

limit the extension stroke

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

The purpose of a sequence valve in a hydraulic retractable landing gear system is to

A

ensure operation of the landing gear and gear doors in the proper order

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

The pressure source for power brakes is

A

the main hydraulic system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Which statement is true with respect to an aircraft equipped with hydraulically operated multiple disk type brake assemblies?

A

Do not set the parking brake when the brakes are hot

35
Q

What type of valve is used in the brake actuating line to isolate the emergency brake system from the normal power brake control valve system?

A

A shuttle valve

36
Q

When servicing an air/oil shock strut with MIL-5606 the strut should be

A

collapsed and fluid added at the filler opening

37
Q

Instructions concerning the type of fluid and amount of air pressure to be put in a shock strut are found

A

in the aircraft manufacturers service manual

38
Q

The purpose of a relief valve in a brake system is to

A

compensate for thermal expansion

39
Q

Aircraft tire pressure should be checked

A

at least once a week or more often

40
Q

If the extended longitudinal axis of the main landing gear wheel assemblies intersects aft of the aircraft, the wheels can be termed as having

A

toe-out

41
Q

What is the purpose of a compensating port or valve in a brake master cylinder of an independent brake system?

A

Permits the fluid to flow toward or away from the reservoir as temp changes

42
Q

If an aircraft shock strut (air/oil type) bottoms upon initial landing contact, but functions correctly during taxi, the most probable cause is

A

low fluid

43
Q

What is the function of a cam incorporated in a nose gear shock strut?

A

Straightens the nose wheel

44
Q

Extension of an oleo strut is measured to determine the

A

proper operating position of the strut

45
Q

Debooster cylinders are used in braking systems primarily to

A

reduce the pressure to the brake and increase the volume of fluid flow

46
Q

If a shock strut bottoms after it has been properly serviced, the

A

strut should be removed, disassembled and reinspected

47
Q

A high speed aircraft tire with a sound core body and bead may be recapped

A

an indefinite number of times

48
Q

If an airplane equipped with master cylinders and single disk brakes has excessive brake pedal travel, but the brakes are hard and effective, the probable cause is

A

worn brake linings

49
Q

The correct inflation pressure of an aircraft tire can be obtained from

A

the aircraft service manual

50
Q

What should be checked when a shock strut bottoms during a hard landing?

A

Fluid level

51
Q

How is it determined in a master cylinder brake system that all of the air has been purged from the system?

A

By depressing the brakes and noting that the brakes is firm and not spongy

52
Q

The left brake is dragging excessively on an airplane on which no recent brake service work has been performed. The most probable cause is

A

foreign particles stuck in the master cylinder compensating port

53
Q

If a brake debooster is used in a hydraulic brake system, its position in the system will be

A

between the brake control valve and the brake actuating cylinder

54
Q

The hydraulic packing seals used in a landing gear shock strut are

A

used only with a specific type of fluid

55
Q

Lockout deboosters are primarily pressure reducing valves that

A

allow full debooster piston travel without fluid from the high pressure side entering the low pressure chamber

56
Q

A close inspection of the fusible plug reveals the core has experienced some deformation. What is the appropriate maintenance procedure?

A

Replace all fusible plugs

57
Q

Chines are used on some aircraft nose wheel tires to help

A

deflect water away from the fuselage

58
Q

The best safeguards against heat buildup in aircraft tires are

A

short ground rolls, slow taxi speeds, minimum braking and proper tire inflation

59
Q

The fusible plugs installed in some aircraft wheels will

A

melt at a specified elevated temp

60
Q

What action, if any, should be taken when there is a difference of more than 5 pounds of air pressure in tires mounted as duals?

A

Correct the discrepancy and enter in logbook

61
Q

How long should you wait after a flight before checking the tire pressure?

A

At least 2 hours (3 hours in hot weater)

62
Q

What is the minimum amount of time to wait for a tire to cool before checking the tire pressure?

A

3 hours

63
Q

Excessive wear in the centre of the tread of an aircraft tire is an indication of

A

overinflation

64
Q

When servicing an empty shock strut with fluid, the strut should be completely compressed and extended several times to ensure

A

proper packing ring seating and removal of air bubbles

65
Q

In shock struts, chevron seals are used to

A

prevent oil from escaping

66
Q

On most aircraft, the oil level of an air and oil shock strut is checked by

A

releasing the air and seeing the oil is to a certain level of the filler plug

67
Q

A pilot reports, the brake pedals have excessive travel. A probable cause is

A

lack of fluid in the brake system

68
Q

A pilot reports, the brake pedals have excessive travel. A probable cause is

A

brake rotors have worn

69
Q

When will a continuous horn provide a warning in the cockpit?

A

When the throttle is retarded and the gear is not down and locked

70
Q

An electric motor used to raise and lower a landing gear would most likely be a

A

split field series-wound motor

71
Q

When installing a chevron-type seal in an aircraft hydraulic cylinder, the open side of the seal should face

A

the up direction of fluid pressure

72
Q

Nose gear centring cams are used in many retractable landing gear systems. The primary purpose of the centring device is to

A

centre the nosewheel before it enters the wheel well

73
Q

What device in a hydraulic system with a constant-delivery pump allows circulation of the fluid when no demands are on the system?

A

Pressure regulator

74
Q

A fully charged hydraulic accumulator provides

A

a source for additional hydraulic power when heavy demands are placed on the system

75
Q

A hydraulic system referred to as a ‘power block’ system will

A

have all hydraulic power components in one unit

76
Q

What is the advantage of having a hydraulic ‘power pack’ system?

A

Reduces weight

77
Q

A flexible hose identified as MIL-H-8788 will have a stripe running through the length of the hose. This strip is

A

installed without excessive twisting

78
Q

An O ring intended for use in a hydraulic system using MIL-H-5606 (mineral base) fluid will be marked with

A

a blue strip or dot

79
Q

What condition would most likely cause excessive fluctuation of the pressure gauge when the hydraulic pump is operating?

A

Inadequate supply of fluid

80
Q

A filter incorporating specially treated cellulose paper is identified as a

A

micronic filter

81
Q

The purpose of an orifice check valve is to

A

restrict flow in one direction and allow free flow in the other

82
Q

A special bolt in a landing gear attachment requires a torque value of 440 inch pounds. How many foot pounds are required?

A

36.6 ft lbs

83
Q

To protect seals from damage when installed over a threaded section, the threaded section should be

A

covered with a suitable sleeve

A&P - Airframe (18 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions