Ontario Commercial Drivers License Class A Practice Test 5

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

Class A Ontario Practice Test 5

A 20 question practice test to help prepare you for the Class AZ knowledge test in Ontario

1 / 20

What does this yellow sign with a black arrow mean?

2 / 20

What does this green road sign mean?

3 / 20

How many off-duty hours must a commercial driver have in a day?

4 / 20

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

5 / 20

The supply line is also called?

6 / 20

When you license is suspended you _________.

7 / 20

A circle check is?

8 / 20

How much space should you give a cyclist when you pass them?

9 / 20

How often must you inspect your commercial vehicle?

10 / 20

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

11 / 20

How do you fix a leaky glad hand?

12 / 20

Over-braking with a trailer can sometimes lead to ______.

13 / 20

Looking at your laptop while driving is _____?

14 / 20

What does this yellow diamond mean?

15 / 20

Correct belt tension for an air compressor can be determined by

16 / 20

If you feel sleepy while driving you should?

17 / 20

What does a trailers hand valve do?

18 / 20

If you drive past a weight station, how many days can your license be suspended for?

19 / 20

What does this sign mean?

20 / 20

How many classes of dangerous goods are there?

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The average score is 86%


Want to know more? Learn all about getting your AZ drivers license in Ontario

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 DriveTest or the MTO. 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.