Air Brake System Quiz

Air Brake System Quiz

9th Grade

65 Qs

quiz-placeholder

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Air Brake System Quiz

Air Brake System Quiz

Assessment

Quiz

Professional Development

9th Grade

Hard

Created by

B P

FREE Resource

65 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

An air leak at point 'X' in the system shown above would cause which of these to leak down?

tank only

tank only

2 and 4 tanks only

the entire system

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

The slack adjuster shown above is being adjusted. Technician A says that travel 'X' should be as short as possible without dragging the brakes. Technician B says that angle 'Y' should be less than 90 degrees when the brakes are applied. Who is right?

Technician A only

Technician B only

Both A and B

Neither A or B

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following cannot cause a drum on an air-braked vehicle to overheat?

an over-tightened brake adjuster at that wheel

under-adjusted brake(s) elsewhere on the vehicle

too-high governor cut-out pressure

driving downhill in too high a gear

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

All the brakes drag on a school bus with hydraulic brakes. Which of the following could be the cause?

air in the hydraulic system

too high a vacuum supply to the power brake booster

a leaking secondary cup in the master cylinder

no brake pedal free travel

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following could cause a pulsating brake pedal on a school bus with hydraulic brakes?

zero brake pedal free travel

glazed linings

an out-of-round brake drum

a frozen wheel cylinder piston

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

In the 'AL' factor, the 'L' refers to the:

lining’s friction code

thickness of the lining

type of front-brake limiting valve

length of the slack adjuster

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Technician A says that linings worn too thin on an air-braked school bus can cause the S-cam shaft to roll over. Technician B says this condition can cause excess brake pedal travel. Who is right?

Technician A only

Technician B only

Both A and B

Neither A or B

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