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.
Take the practice test!
Want to know more? Learn all about getting your DZ drivers license in Ontario
More Ontario Commercial Driving Practice Tests
Ontario Class A Practice Tests
- Ontario Class A Practice Test 1
- Ontario Class A Practice Test 2
- Ontario Class A Practice Test 3
- Ontario Class A Practice Test 4
- Ontario Class A Practice Test 5
Ontario Class D Practice Tests
- Ontario Class D Practice Test 1
- Ontario Class D Practice Test 2
- Ontario Class D Practice Test 3
- Ontario Class D Practice Test 4
- Ontario Class D Practice Test 5
Air Brakes Practice Tests
- Ontario Air Brakes Test 1
- Ontario Air Brakes Test 2
- Ontario Air Brakes Test 3
- Ontario Air Brakes Test 4
- Ontario Air Brakes Test 5
Ontario Road Signs Test
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.