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ON General Knowledge Marathon

Based on the 2025 ON CDL manual
Questions: 516
Mistakes allowed: 0
Passing score: 100%
Ensuring the accuracy and quality of our practice tests is paramount. Learn more about our rigorous standards in our Commitment to Accuracy article.
What to expect on the official exam
How many questions:40
How many correct answers to pass:32
Passing score:80%

Driving a commercial vehicle is completely different from driving a car. Drivers must know more about their vehicles, and they need to take extra safety precautions. A commercial driver’s licence is required to drive a commercial vehicle of a certain size and weight in Canada. To obtain a commercial driver’s licence in Ontario, the driver must pass a written knowledge test and a road test. This 516-question Marathon contains all questions from our other ON General Knowledge tests. It will cycle through them until you’ve provided a correct answer to each of them. The General Knowledge Marathon is based on the 2025 Ontario commercial driver’s manual. You can also use our regular General Knowledge practice tests for ON to prepare for your test. When you’re ready, take the General Knowledge Exam Simulator.

Based on 2025 ON commercial driver's license manual
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List of questions (classic view)