Aircraft Brakes - Assessment

1.

Multiple Choice

10 sec

1 pt

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

Assists in the master cylinder piston return

Prevents fluid from flowing back to the reservoir

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

2.

Multiple Choice

10 sec

1 pt

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

The master cylinder one way cup is leaking

Worn brake linings

Worn brake disc causing excessive clearance between the notches on the perimeter of the disc and the splines or keys on the wheel

3.

Multiple Choice

10 sec

1 pt

Internal leakage in a brake master cylinder unit can cause the pedal to slowly creep down when pedal pressure is applied, this is known as?

Soft brakes

Hard brakes

Fading brakes

4.

Multiple Choice

10 sec

1 pt

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

By operating a hydraulic unit and watching the system pressure gauge for smooth, full scale deflection

By noting whether the brake is firm or spongy

By noting the amount of fluid return to the master cylinder upon brake release

5.

Multiple Choice

10 sec

1 pt

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

The brakes will operate normally

The reservoir will be filled by reverse flow

The restriction will cause dragging brakes

6.

Multiple Choice

10 sec

1 pt

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

The brakes would become spongy

The brake travel would become excessive

The brakes would drag

7.

Multiple Choice

10 sec

1 pt

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

Worn brake lining

Internal leakage in the master cylinder

Deteriorated flexible hoses

8.

Multiple Choice

10 sec

1 pt

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

Single disc spot type

Single servo type

Expander tube type

9.

Multiple Choice

10 sec

1 pt

What would be the cause of brake chatter when brake pressure is applied?

Wrong type of brake pads

Glazed brake pads

Broken brake pads

10.

Multiple Choice

10 sec

1 pt

What method is used when bleeding a brake system using a pressure pot?

Bottom to top

Top to bottom

Out to in

11.

Multiple Choice

10 sec

1 pt

Debooster cylinders are primarily used for what purpose in the power brake system?

Reduce brake pressure and maintain static pressure

Relieve excessive fluid and ensure a positive pressure

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

12.

Multiple Choice

10 sec

1 pt

What is the purpose of a relief valve in a brake system?

Reduce pressure for brake application

Prevent the tire from skidding

Compensate for thermal expansion

13.

Multiple Choice

10 sec

1 pt

Deboosters valves are used for what purpose in the power brake system

Ensure rapid application and slow release of the brakes

Reduce brake pressure and maintain static pressure

Reduce pressure and stop fluid loss due to line rupture

14.

Multiple Choice

10 sec

1 pt

What is the pressure source for the power brake system?

Main hydraulic system

Power brake reservoir

The master brake cylinder

15.

Multiple Choice

10 sec

1 pt

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

There are no disk clearance checks due to self-compensating cylinder assemblies

Do not set parking brakes when the brakes are hot

No parking brake provisions are possible for this type of brake assembly

16.

Multiple Choice

10 sec

1 pt

Lockout Debooster are pressure reducing valves that?

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

Cannot allow full Debooster piston travel without fluid from the high pressure side entering the low pressure chamber side

Must be bled separately after brake bleeding has been completed

17.

Multiple Choice

10 sec

1 pt

In brake service work, the term “Bleeding the brakes” is the process of:

Withdrawing only air from the system

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

Replacing small amounts of fluid in the reservoir

18.

Multiple Choice

10 sec

1 pt

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

Use independent master cylinder systems

Do not use brake system accumulators

Use power brake control valves

19.

Multiple Choice

10 sec

1 pt

Small aircraft primarily use what type of bake system?

Dependent

Independent

Multiple disk

20.

Multiple Choice

10 sec

1 pt

What is the first thing to check if a master cylinder has excessive travel?

Pilots operating handbook

Fluid level

Pneumatic charge

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