Quebec Commercial Drivers License Air Brakes Practice Test 3

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Each license type has 5 tests to help you study and become familiar with the rules and regulations of commercial driving. The tests are not identical to the license test you will need to pass, but the questions are similar to what you will find on the real deal.

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Created by Commercial Driver HQ

Quebec Air Brakes Practice Test 3

A 20 question practice test to help prepare you for your air brakes knowledge test in Quebec

1 / 20

What does a governor do in an air brake system?

2 / 20

What powers the air brakes air compressor system?

3 / 20

If brake chambers on opposite side of an axle are different sizes, this may cause?

4 / 20

Why is it important to know where your air system releases air pressure from?

5 / 20

Finding a small bit of oil during an inspection is no cause for concern if its coming from the _____________?

6 / 20

You should be looking for this when checking your brake chambers?

7 / 20

How do you engage the emergency / parking brake on most air brake systems?

8 / 20

System air loss should be measured by applying the brake for how long?

9 / 20

Where is the brake lining fastened?

10 / 20

Which statement is true of spring brakes?

11 / 20

What might happen if the air lines are cross connected?

12 / 20

Spring brake controls are usually what color?

13 / 20

Activation of trailer spring brakes can be checked by?

14 / 20

Manufactures recommend draining moisture and oil in an air system on a _______ basis.

15 / 20

Which type of trailer can be towed before the service tanks are full?

16 / 20

What is an ABS system?

17 / 20

Most air brake systems will use automatic valves to?

18 / 20

The air system pressure range must be between _________.

19 / 20

Trailer air brake systems must apply a spring brake when the pressure drops below?

20 / 20

Where is the air pressure gauge for the air brake system?

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We do our best to keep the questions current and accurate. The testing centres may change the questions on the knowledge tests at any time. Always be prepared for surprises.

Many of the answers to the questions can be found in the driver hand books or learning materials your province provides.

DISCLAIMER:CDHQ is not affiliated with the provinces or any test centres. These practice tests should not be considered official tests and you are not granted a license for completing them. Our tests are simply a practice tool to help prepare yourself for the real test.