Quebec Commercial Drivers License Air Brakes Practice Test 1

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Our FREE practice tests are designed to help you succeed when it comes time to write the real test.

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 1

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

1 / 20

What should you do when the air brakes low pressure warning comes on?

2 / 20

Th design of the wedge brake system allows them to?

3 / 20

Cut in pressure level must never fall below __________.

4 / 20

Spring brakes will begin to apply when the pressure starts to drop below?

5 / 20

If the outer layer of an airline is damaged, but the inner layer is ok, what should you do?

6 / 20

Where are the air brake chambers located?

7 / 20

What is the best way to inspect an air compressor?

8 / 20

What is the "cut-out" level?

9 / 20

The low air pressure warning device needs to be replaced or adjusted if it does not trigger at a minimum level of?

10 / 20

What is a "glad hand"?

11 / 20

The spring brake is designed for which situation?

12 / 20

Test the low pressure alarm with the air pressure above __________.

13 / 20

What is not a factor in how well your air brake system works?

14 / 20

What function does the alcohol evaporator perform?

15 / 20

How long should it take for the air pressure to rise from 587kPa to 690 kPa after the pressure had fallen below 552 kPa?

16 / 20

The full capacity of the air brake system must be available when?

17 / 20

A commercial vehicle with air brakes engaged must not lose air pressure faster than?

18 / 20

What is the first thing to look at when inspecting an air brake system?

19 / 20

Correct belt tension for an air compressor can be determined by

20 / 20

Why are their two service tanks?

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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.