Quebec Commercial Drivers License Air Brakes Practice Test 2

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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 2

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

1 / 20

Which colour usually means the air line is a service line?

2 / 20

What is the "cut in" level?

3 / 20

What can cause the air pressure in the air brake system to drop?

4 / 20

Which tank should be drained first when draining the air tanks on an air brake system?

5 / 20

Any commercial vehicle with air brakes must not lose system pressure with the brakes applied at a rate of more than?

6 / 20

When brakes become overheated they also become?

7 / 20

Who can perform adjustments and maintenance on your air brake system?

8 / 20

Which of these is not part of an air brake system?

9 / 20

The best way to reduce rough and abrupt braking is to?

10 / 20

The supply tank should discharge more moisture than any other tank?

11 / 20

What is the most frequent reason a vehicle is removed from service?

12 / 20

To make sure the air tanks are securely attached to the vehicle you should?

13 / 20

Before inspecting for air brake chamber leaks, you must __________.

14 / 20

Which can contaminate a brake systems air lines?

15 / 20

A vehicle should have wheel chocks or blocks securing it in place during inspection if...?

16 / 20

The pushrod stroke occurs when compressed air enters the?

17 / 20

Which colour represent the trailer supply line?

18 / 20

When you are testing your spring brakes, the test is considered a success when?

19 / 20

You test a tractor protection valve by removing the service line and?

20 / 20

What is the service brake used for?

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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.