Ontario Commercial Drivers License Class A Practice Test 1

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 AZ Ontario Practice Test 1

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

1 / 20

The tallest your vehicle can be is?

2 / 20

How much air loss is allowed for a tractor and a trailer when the brakes are engaged?

3 / 20

What type of license do you need to driver a semi trailer?

4 / 20

What does the sign below tell you?

5 / 20

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

6 / 20

Which of these vehicle driver’s are exempt from the Hours of Service Regulations?

7 / 20

What don’t a vehicle’s back wheels usually do?

8 / 20

How much stopping distance does a truck need compared to a normal car?

9 / 20

When backing up a to a trailer, align the 5th wheel slot with?

10 / 20

What should a trailer hand valve be used for?

11 / 20

What does this yellow diamond warning sign mean?

12 / 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?

13 / 20

When towing a trailer, you will usually be able to tell if it is employing ABS by?

14 / 20

Which party is responsible for ensuring correct and compliant weight of a shipment?

15 / 20

What does this warning sign with a truck rolling down a hill mean?

16 / 20

Drivers must operate in a cycle. What are the two cycles available to drivers?

17 / 20

If you see an open truck inspection station which driving your truck, you must?

18 / 20

What does this diamond shaped sign with a checkered border and a pointed arrow mean?

19 / 20

Which of these are indicators that you may have difficulty with the clearance under your vehicle?

20 / 20

What is the best way to inspect an air compressor?

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The average score is 79%


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.