Quebec Commercial Drivers License Class 3 Practice Test 4

Commercial Driver HQ is a website focused on helping new commercial drivers in all provinces and territories in Canada.

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.

Compatible on desktop, mobile, and tablet, you can take these tests anywhere you have internet access.

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Created by Commercial Driver HQ

Quebec Class 3 Practice Test 4

A 20 question practice test to help prepare you for the Class 3 knowledge test in Quebec

1 / 20

Once you've started driving, when should you check your brakes?

2 / 20

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

3 / 20

How many hours can a commercial driver drive in one day?

4 / 20

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

5 / 20

When going down hills you should?

6 / 20

When you are going twice the speed, your brakes will need to work ________ time harder to stop your vehicle.

7 / 20

Before driving down a grade (hill), you should?

8 / 20

What powers the air brakes air compressor system?

9 / 20

What does the sign below tell you?

10 / 20

What does this sign warn you of?

11 / 20

When approaching a school bus, you must stop when?

12 / 20

When is an engine retarder most efficient?

13 / 20

What does this construction sign mean?

14 / 20

When can you adjust your own air brakes?

15 / 20

As an operator you are required to have vehicles and trailers inspected how often?

16 / 20

What is the correct use of an ABS system during a braking emergency?

17 / 20

Cut out pressure level must never exceed __________.

18 / 20

What is this sign used for?

19 / 20

What is a vehicle's danger zone?

20 / 20

What does this sign tell you?

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The average score is 82%


Ready to take the real knowledge test? Find out more about completing your Class 3 drivers license in Quebec

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.