Aircraft landing gear system

79問 • 1年前

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問題一覧

Excessive wear in the shoulder area of an aircraft tire is an indication of

Underinflation

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

At least 2 hours (3 hours in hot weather)

Aside from an external leak in the line, what will cause parking brakes to continually bleed off pressure?

An internal leak in the master cylinder

The purpose of an orifice check valve is to

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

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

Use power brake control valves

Lockout deboosters are primarily pressure reducing valves that

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

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

The brakes would drag

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 shuttle valve

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

In the aircraft manufacturer’s service manual

The metering pin in oleo shock struts serve to

Meter the proper amount of air in struts.

On an air valve core stem, what indicates high- pressure type?

An embossed letter ‘H’

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

Compensate for the thermal expansion

In shock struts, chevron seals are used to

Prevent oil from escaping

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

Foreign particles stuck in the master cylinder compensating port.

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

Slippage mark.

Chines are used on some aircraft nose wheel tire to help

Deflecting water away from the fuselage

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

Split field series-wound motor.

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

Pressure regulator

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

Have all hydraulic power components located in one cucuit.

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

Maintain correct wheel alignment.

Debooster valves are used in brake system primarily to

Reduce the pressure and release the brakes rapidly.

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

Withdrawing fluid from the system for the purpose of removing air that has entered the system.

Extension of an oleo shock strut is measured to determine the:

Proper operating position of the strut.

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

Expander-tube type.

Debooster cylinders are used in brake systems primarily to:

Reduce the pressure to the brake and increase the volume of fluid flow.

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

Inadequate supply of fluid

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

Worn brake linings

A flexible hydraulic hose identified as MIL-H-8788 will have a stripe running the length of the hose. The stripe

Is used to ensure that the hose is installed without excessive twisting

An automatic damping action at the steering damper if for any reason the flow of high-pressure fluid is removed from the

Inlet of the steering damper

A brake debooster valve is installed in systems where the high pressure of the hydraulic system (300 psi) is used to operate brakes

That are designed to work with lower pressure

The repair of 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

Inserting, removing, or changing the location of washers or spacers at the center pivotal point of the scissors torque links

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

Toe-out

An O-ring intended for use in a hydraulic system using MIL-H5606 (mineral base) fluid will be marked with

A blue striper or dot

When an empty shock strut is filled with fluid, care should be ta to extend and compress the strut completely at least two times to

Ensure proper packing ring sealing and removal of air bubbles.

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

The direction of fluid pressure.

Internal leakage in a brake master cylinder unit can cause

The pedal to slowly creep down while pedal pressure is applied.

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

To allow the tube to position itself correctly inside the tire.

Exposure to and/or storage near which of the following is considered harmful to the aircraft tires? 1. Humidity 5. Helium 2. Fuel 6. Electrical equipment 3. Oil 7. Hydraulic fluid 4. Ozone 8. Solvents

2,3,4,6,7,8

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

Correct the discrepancy and enter in the aircraft records

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

Over inflation

How can it be determined that all air has been purged from a master cylinder brake system?

By noting whether the brake is firm or spongy

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

Permits the fluid flow toward or away from the reservoir as temperature changes.

A filter incorporating specially treated cellulose paper is identified as a

Micronic filter

A landing gear positon and warning system will provide a warning in the cockpit when throttle is

Retarded and gear is not down and locked.

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

Used only with a specific type of fluid.

The best safeguards against heat buildup in aircraft tires are

Short ground rolls, sloe taxi speeds, minimum braking and proper tire inflation

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

Preventive maintenance

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

Straightens the nose wheel

Why do tire and wheel manufacturers often recommended that the tires on split rim wheels be deflated before removing the wheel from the axle?

As a safety precaution in case the bolts that hold the wheel halves together have been damaged or weakened.

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

Center the nosewheel before it enters the wheel well.

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

Limit the extension stroke.

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

Air in the brake hydraulic system.

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

36.6

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

Between the brake control valve and the brake actuating cylinder.

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

Do not set parking brake when brakes are hot.

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

The restriction will cause slow release of the brakes.

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

Extend the landing gear if the normal operating mechanism fails.

Overinflated aircraft tires may cause damage to the:

Wheel flange.

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

Collapsed and fluid added at the filler opening.

Aircraft tire pressure should be checked:

At least once a week or more often.

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

Lack of fluid in the brake system.

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

Fluid level.

The primary purpose for balancing aircraft wheel assemblies is to:

Prevent heavy spots and reduce vibration.

A fully-charged hydraulic accumulator provides:

A source for additional hydraulic power when heavy demands are place on the system.

The correct inflation pressure for an aircraft tire can be obtained from:

The aircraft service manual.

When a properly operating fusible plug has allowed a tire to deflate, the tire should be:

Replaced

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

Deteriorated flexible hoses.

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

Low fluid.

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

Releasing the air and seeing that the oil is the level of the filler plug.

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

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

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

Strut should be removed, disassembled, and inspected.

Power boost brake systems are used on aircraft that have:

High landing speeds.

The pressure source for power brakes is:

The main hydraulic system.

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

An indefinite number of times.

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

The fluid being forced through a metered opening.

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

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

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

Ensure the operation of the landing gear and gear doors in the proper order.

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

Firm brake pedals.

The fusible plugs installed in some aircraft wheels will:

Melt at a specified elevated temperature.

airlaw

airlaw

pcar & afcar

pcar & afcar

new set

new set

human factor

human factor

human factor 2

human factor 2

Engine instrument system

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Engine instrument system

Propellers

Propellers

Propellers (2)

Propellers (2)

Induction and engine airflow system

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Induction and engine airflow system

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Ignition starting system

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Ignition starting system

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Ignition starting system (2)

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Ignition starting system (2)

Auxiliary power unit

Auxiliary power unit

Reciprocating engines

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Reciprocating engines

Turbine engines

Turbine engines

Turbine engines (2)

Turbine engines (2)

Fuel metering systems

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Fuel metering systems

98問 • 1年前

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Sheetmetal & Non sheetmetalic structure

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Sheetmetal & Non sheetmetalic structure

100問 • 1年前

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Sheetmetal and non sheetmetalic structure

ユーザ名非公開 · 30問 · 1年前

Sheetmetal and non sheetmetalic structure

Aircraft fuel system

Aircraft fuel system

Aircraft fuel system

Aircraft fuel system

MAINTENANCE FORMS AND RECORDS

ユーザ名非公開 · 36問 · 1年前

MAINTENANCE FORMS AND RECORDS

36問 • 1年前

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GROUND OPERATIONS &SERVICING

ユーザ名非公開 · 38問 · 1年前

GROUND OPERATIONS &SERVICING

38問 • 1年前

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CLEANING AND CORROSION CONTROL

ユーザ名非公開 · 34問 · 1年前

CLEANING AND CORROSION CONTROL

34問 • 1年前

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HYDRAULIC &PNEUMATIC POWER SYSTEM

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HYDRAULIC &PNEUMATIC POWER SYSTEM

100問 • 1年前

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HYDRAULIC &PNEUMATIC POWER SYSTEM

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HYDRAULIC &PNEUMATIC POWER SYSTEM

8問 • 1年前

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FLUID LINES & FITTINGS

ユーザ名非公開 · 35問 · 1年前

FLUID LINES & FITTINGS

35問 • 1年前

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INDUCTION AND ENGINE AIRFLOW SYSTEM

ユーザ名非公開 · 42問 · 1年前

INDUCTION AND ENGINE AIRFLOW SYSTEM

ASSEMBLY AND RIGGING

ASSEMBLY AND RIGGING

AIRCRAFT FINISHES

AIRCRAFT FINISHES

WELDING

WELDING

WOOD STRUCTURE

WOOD STRUCTURE

Fuel metering systems

ユーザ名非公開 · 98問 · 1年前

Fuel metering systems

98問 • 1年前

ユーザ名非公開

Fuel metering systems

ユーザ名非公開 · 98問 · 1年前

Fuel metering systems

MATHEMATICS

MATHEMATICS

MATERIALS AND PROCESS

ユーザ名非公開 · 86問 · 1年前

MATERIALS AND PROCESS

BASIC PHYSICS

BASIC PHYSICS

問題一覧

Excessive wear in the shoulder area of an aircraft tire is an indication of

Underinflation

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

At least 2 hours (3 hours in hot weather)

Aside from an external leak in the line, what will cause parking brakes to continually bleed off pressure?

An internal leak in the master cylinder

The purpose of an orifice check valve is to

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

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

Use power brake control valves

Lockout deboosters are primarily pressure reducing valves that

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

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

The brakes would drag

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 shuttle valve

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

In the aircraft manufacturer’s service manual

The metering pin in oleo shock struts serve to

Meter the proper amount of air in struts.

On an air valve core stem, what indicates high- pressure type?

An embossed letter ‘H’

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

Compensate for the thermal expansion

In shock struts, chevron seals are used to

Prevent oil from escaping

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

Foreign particles stuck in the master cylinder compensating port.

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

Slippage mark.

Chines are used on some aircraft nose wheel tire to help

Deflecting water away from the fuselage

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

Split field series-wound motor.

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

Pressure regulator

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

Have all hydraulic power components located in one cucuit.

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

Maintain correct wheel alignment.

Debooster valves are used in brake system primarily to

Reduce the pressure and release the brakes rapidly.

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

Withdrawing fluid from the system for the purpose of removing air that has entered the system.

Extension of an oleo shock strut is measured to determine the:

Proper operating position of the strut.

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

Expander-tube type.

Debooster cylinders are used in brake systems primarily to:

Reduce the pressure to the brake and increase the volume of fluid flow.

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

Inadequate supply of fluid

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

Worn brake linings

A flexible hydraulic hose identified as MIL-H-8788 will have a stripe running the length of the hose. The stripe

Is used to ensure that the hose is installed without excessive twisting

An automatic damping action at the steering damper if for any reason the flow of high-pressure fluid is removed from the

Inlet of the steering damper

A brake debooster valve is installed in systems where the high pressure of the hydraulic system (300 psi) is used to operate brakes

That are designed to work with lower pressure

The repair of 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

Inserting, removing, or changing the location of washers or spacers at the center pivotal point of the scissors torque links

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

Toe-out

An O-ring intended for use in a hydraulic system using MIL-H5606 (mineral base) fluid will be marked with

A blue striper or dot

When an empty shock strut is filled with fluid, care should be ta to extend and compress the strut completely at least two times to

Ensure proper packing ring sealing and removal of air bubbles.

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

The direction of fluid pressure.

Internal leakage in a brake master cylinder unit can cause

The pedal to slowly creep down while pedal pressure is applied.

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

To allow the tube to position itself correctly inside the tire.

2,3,4,6,7,8

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

Correct the discrepancy and enter in the aircraft records

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

Over inflation

How can it be determined that all air has been purged from a master cylinder brake system?

By noting whether the brake is firm or spongy

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

Permits the fluid flow toward or away from the reservoir as temperature changes.

A filter incorporating specially treated cellulose paper is identified as a

Micronic filter

A landing gear positon and warning system will provide a warning in the cockpit when throttle is

Retarded and gear is not down and locked.

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

Used only with a specific type of fluid.

The best safeguards against heat buildup in aircraft tires are

Short ground rolls, sloe taxi speeds, minimum braking and proper tire inflation

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

Preventive maintenance

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

Straightens the nose wheel

Why do tire and wheel manufacturers often recommended that the tires on split rim wheels be deflated before removing the wheel from the axle?

As a safety precaution in case the bolts that hold the wheel halves together have been damaged or weakened.

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

Center the nosewheel before it enters the wheel well.

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

Limit the extension stroke.

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

Air in the brake hydraulic system.

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

36.6

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

Between the brake control valve and the brake actuating cylinder.

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

Do not set parking brake when brakes are hot.

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

The restriction will cause slow release of the brakes.

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

Extend the landing gear if the normal operating mechanism fails.

Overinflated aircraft tires may cause damage to the:

Wheel flange.

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

Collapsed and fluid added at the filler opening.

Aircraft tire pressure should be checked:

At least once a week or more often.

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

Lack of fluid in the brake system.

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

Fluid level.

The primary purpose for balancing aircraft wheel assemblies is to:

Prevent heavy spots and reduce vibration.

A fully-charged hydraulic accumulator provides:

A source for additional hydraulic power when heavy demands are place on the system.

The correct inflation pressure for an aircraft tire can be obtained from:

The aircraft service manual.

When a properly operating fusible plug has allowed a tire to deflate, the tire should be:

Replaced

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

Deteriorated flexible hoses.

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

Low fluid.

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

Releasing the air and seeing that the oil is the level of the filler plug.

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

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

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

Strut should be removed, disassembled, and inspected.

Power boost brake systems are used on aircraft that have:

High landing speeds.

The pressure source for power brakes is:

The main hydraulic system.

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

An indefinite number of times.

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

The fluid being forced through a metered opening.

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

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

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

Ensure the operation of the landing gear and gear doors in the proper order.

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

Firm brake pedals.

The fusible plugs installed in some aircraft wheels will:

Melt at a specified elevated temperature.