our practice tests allow you to get a feel for the actual exam format, so you can go into test day feeling calm and prepared. Don’t let the Ontario Air Brake test intimidate you – use our free practice tests to help you pass with flying colors.


Ontario Air Brake Test 05

1 / 30

Being able to demonstrate an applied pushrod stroke measurement method of inspection is compulsory for...?

2 / 30

Pushrod stroke measurements should be done with the engine...?

3 / 30

Automatic slack adjusters can only be repaired by...?

4 / 30

When performing an inspection as part of the practical examination, you should...?

5 / 30

A long stroke brake chamber can be identified by the fact that it will have...?

6 / 30

Before measuring the applied pushrod stroke, you should ensure the air pressure is above...?

7 / 30

If your vehicle has automatic slack adjusters, inspection of brake adjustment...?

8 / 30

A size 36 brake chamber will be marked with...?

9 / 30

The only tank from which it is acceptable to observe a significant amount of moisture being discharged is...?

10 / 30

Before measuring the applied pushrod stroke, you should ensure the air pressure does not exceed...?

11 / 30

Which of these is not part of the trailer brake subsystem circuit?

12 / 30

When measuring the pushrod stroke, this should be done with the brake pedal...?

13 / 30

Brake chamber size can be determined by measuring...?

14 / 30

Which of these items is it optional to bring to the practical test for airbrake certification?

15 / 30

The pushrod stroke should be inspected at least...?

16 / 30

Which of these is not part of the air supply subsystem circuit?

17 / 30

If a drain valve on any tank is not functioning properly, it must be...?

18 / 30

A long stroke size 24 brake chamber will have which of these markings?

19 / 30

Proper inspection of air brakes must be undertaken regularly by...?

20 / 30

Marks made in measuring pushrod strokes must be...?

21 / 30

To inspect the low air warning device, the ignition key should be...?

22 / 30

As your brakes wear, brake pushrod stroke will...?

23 / 30

You can discover the size of brake chamber on your vehicle by...?

24 / 30

If you are performing a brake adjustment inspection as part of the practical test, you must be equipped with...?

25 / 30

Which of these is not part of the air supply subsystem circuit?

26 / 30

Readjustments to manual slack adjusters may only be carried out by...?

27 / 30

The most common brake chamber size is...?

28 / 30

The brake is out of adjustment when the pushrod stroke...?

29 / 30

A standard stroke brake chamber will have what sort of port?

30 / 30

Which of these items do you not need to bring to your test if being tested for motor coaches?

Your score is


MTO Air Brake Test

Our free MTO air brake test questions and answers will prepare you to pass Ontario’s official Air Brakes knowledge test. To begin your career in trucking, you must obtain your Ontario Class A or Class D Truck Driver’s Licence. The appropriate CDL endorsements you will need are based on the type of trucking career you plan to pursue. To obtain these endorsements, you must complete a written knowledge test successfully. Making sure you are adequately prepared for your written knowledge test will prevent you from wasting time and money. Taking practice CDL tests is the best way to get ready.

Passing your air brake test doesn’t have to be a stressful experience. Follow this important tip, and you should pass the test without a problem.

Think Positively – It is essential to think positively on test days. You have studied well, take a few practice tests, gotten enough rest, and had a good breakfast. You know the information and are ready to prove it. All your preparation will give you the confidence to succeed on the test.

As stated above, practice tests greatly help prepare for your written air brake test. Please contact us for some helpful practice tests.