Ontario Air Brake Test 02

Taking the Ontario air brake practice test is an excellent way to prepare for the actual air brake endorsement test, which is conducted in the presence of an authorized officer. The practice test is designed to test the understanding and knowledge of potential drivers on important aspects of air brake systems, such as the operation, maintenance, and safety procedures. It comprises of 25 multiple-choice questions, with a required pass rate of 80% or higher to secure the endorsement. The province’s Ministry of Transportation recommends that drivers take the practice test several times before attempting the actual one to become comfortable with the material. Overall, taking the Ontario air brake practice test is an essential step towards becoming a successful and safe driver with the proper credentials.


Ontario Air Brake Test 02

1 / 30

If the governor fails to signal the compressor to cut-out and too much pressure builds up, what happens?

2 / 30

The primary and secondary air tanks are also called...

3 / 30

A vehicle should only be driven when air pressure is in which range?

4 / 30

In some cases, how many tanks are housed within one cylinder?

5 / 30

Having two delivery circuits is a safety feature that does what?

6 / 30

What is the first tank that the compressed air enters called?

7 / 30

What happens if the mixture of moisture and oil that collects in the supply tank passes into the rest of the air brake system?

8 / 30

Where are the air tanks located?

9 / 30

What may also mix with the air that passes through the compressor and settle at the bottom of the tank?

10 / 30

What can the collected moisture and oil mixture from the supply tank form?

11 / 30

Air compressors are generally powered directly by the vehicle's engine or by using what?

12 / 30

What's the purpose of the safety valve in the supply tank?

13 / 30

Where is an air dryer located?

14 / 30

Which of the following are not some of the problems that can occur if the sludge passes through to the rest of the brake system?

15 / 30

What is added to the air that will mix with any moisture or ice present and reduce its tendency to freeze?

16 / 30

What does the air that is drawn in by the air compressor contain?

17 / 30

A drop in air pressure below the normal cut-in setting is a sign of what?

18 / 30

What is the purpose of the governor?

19 / 30

What prevents the air flow from returning to the supply tank?

20 / 30

What is another name for the supply tank?

21 / 30

The primary and secondary air tanks are called dual-service tanks, but what else are they called?

22 / 30

When air leaves the supply tank, it splits into how many circuits?

23 / 30

Vehicles may use what to reduce the amount of moisture that passes into the air brake system?

24 / 30

What happens after air that is pumped by the air compressor passes through the air dryer?

25 / 30

The actual air brake system pressure range must never be higher than...

26 / 30

How often should moisture and oil must be drained from the tanks?

27 / 30

What happens to the moisture collected in the air dryer?

28 / 30

How many separate air pressure gauges can vehicles have?

29 / 30

When the air pressure drops to a certain point, what will the governor do?

30 / 30

When draining the tanks, which tank should always be first?

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