Air Brake Practice Test 02

By practicing with this test, you can identify any knowledge gaps and areas that require further study. Additionally, the test will provide you with a realistic simulation of the actual exam, which will help you to become familiar with the format and timing. With dedicated practice and focused study, you can confidently take your official air break exam and pass with flying colors. Remember, the key to success is consistent practice and preparation.


Air Brake Practice Test 02

1 / 30

A brake chamber is usually mounted where?

2 / 30

What compresses the air in the cylinder?

3 / 30

If a leak occurs in the diaphragm, air is allowed to escape causing what to happen?

4 / 30

Why do air treadles provide a different feel from hydraulic brake applications?

5 / 30

Where would an air dryer be installed?

6 / 30

What's the purpose of the heater element in the purge valve?

7 / 30

What happens if the safety valve has to relieve pressure?

8 / 30

What is another name for the supply reservoir?

9 / 30

What is the purpose of an air dryer?

10 / 30

What happens if the slack adjusters are not adjusted within the limitations?

11 / 30

What is another name for an automatic reservoir drain valve?

12 / 30

What would stop a compressor to not be able to build air pressure rom 50 to 90 psi within three minutes?

13 / 30

What are the primary and secondary reservoirs also known as?

14 / 30

The push rod is connected to a crank arm-type lever called what?

15 / 30

What would happen if sludge accumulated in the bottom of the tank?

16 / 30

The number and size of the reservoirs on a vehicle will depend on what?

17 / 30

What gets formed in the bottom of the supply reservoir?

18 / 30

As the piston nears the top of the stroke, the pressurized air is forced where?

19 / 30

What is meant by the loading stage?

20 / 30

What does a safety valve do?

21 / 30

What happens in the reservoir when the heated air cools?

22 / 30

The compressor must be able to build reservoir air pressure from 50 to 90 psi within how fast?

23 / 30

What does a slack adjuster do?

24 / 30

Do automatic reservoir drain valves still need to be checked daily?

25 / 30

What's the difference between front brake chambers and rear brake chambers?

26 / 30

How often should the tanks be drained?

27 / 30

A brake chamber is a circular container divided in the middle by what?

28 / 30

How id the push rod connected to the slack adjuster?

29 / 30

When the driver releases the treadle where does the air get released to?

30 / 30

A safety valve is normally set at what psi?

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