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FREE ON General Knowledge Test 1
- Based on 2025 ON commercial driver's licence manual
- Updated for September 2025
- Perfect for first-time and renewal commercial applicants, and those adding endorsements
- Triple-checked for accuracy
The official Ontario Commercial Vehicle Knowledge Test is the first challenge to overcome in the licensing process. To pass, you must answer all multiple-choice questions and score 80% or higher before the timer ends. There are no hints or features to assist you; once you go to the DriveTest Centre, you’re on your own. You should study commercial driving theory for several weeks to increase your chances of obtaining a passing score on your first attempt. To learn more about the licensing process, traffic signs and safe driving practices during this time, study the Official Ministry of Transportation (MTO) Truck Handbook or the official MTO Bus Handbook, depending on which class of licence you’re applying for.
Our Ontario Commercial Class General Knowledge Practice Tests can be a game changer for students struggling with test anxiety. Use this intuitive tool to familiarize yourself with the content and format of the official exam. Avoid rushing and focus on gradually building your confidence and knowledge. We have omitted any timer from these practice tests so you can study at your own pace. All questions have multiple answer choices, but only one is correct. Our automated assistant will be present during your training sessions to help you. Initiate a conversation whenever you wish to receive useful insights and personalized answers to your questions. Additionally, you can request hints that nudge you in the right direction without revealing the correct answer.
See how other students responded to each question with the answer popularity feature. This function can be toggled from the “Test settings” menu on the left side of the page. The same menu includes several other features, such as the font size slider that lets you adjust the text size until it becomes easier to read. Use these features to customize your testing experience and enhance your learning potential.
Becoming a safe and responsible commercial driver in Ontario takes time and effort. Whether you’re from Toronto or Thunder Bay, a commercial driver’s licence opens up plenty of opportunities. Dedicate the following weeks to studying and mastering commercial driving theory and ace the official written knowledge test on your first attempt.
- Based on 2025 ON commercial driver's licence manual
- Perfect for first-time and renewal commercial applicants, and those adding endorsements
What you need to know
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
Ensuring the accuracy and quality of our program is paramount. Learn more about our rigorous standards in our Commitment to Accuracy article.
What to expect on the actual ON exam
40
questions
32
correct answers to pass
80%
passing score
Are you in another province?
- Alberta: Test 1 / Test 2
- British Columbia: Test 1 / Test 2
- Manitoba: Test 1 / Test 2
- New Brunswick: Test 1 / Test 2
- Newfoundland and Labrador: Test 1 / Test 2
- Northwest Territories: Test 1 / Test 2
- Nova Scotia: Test 1 / Test 2
- Nunavut: Test 1 / Test 2
- Ontario: Test 1 / Test 2
- Quebec: Test 1 / Test 2
- Saskatchewan: Test 1 / Test 2
- Yukon: Test 1 / Test 2
Our commitment to accuracy and quality in our practice tests
Explore our rigorous, multi-tiered verification process that ensures each question mirrors the official manual for unparalleled accuracy.
Written by Andrei Zakhareuski Updated over a week ago
At Tests.ca, we understand the importance of reliable and accurate practice tests to help you prepare for your driver's knowledge exam. That's why we've developed a meticulous process to create and continually update our practice questions, ensuring they reflect the most current driving laws and regulations.
Here's an inside look at how we maintain the highest quality in our practice tests.
Content Creation and Verification Process
- Alignment with Official Driving Handbooks:
Every question we develop is based on the most recent version of each province's official driving manual. Our team regularly monitors each province's official website for the latest updates to ensure our practice tests are always aligned with the most current information. - Community Feedback Integration:
We leverage feedback from our vast community of users to understand which topics are most frequently tested. This helps us focus on the areas that are most relevant and beneficial for your preparation. - Expert Content Creation:
Our in-house editor, Steven, who has extensive experience in driver education, crafts each question with precision. He conducts a thorough review of each question against the official manuals to ensure accuracy. - Rigorous Review Process:
Once Steven has finalized a set of questions, our team conducts a joint review session. This second level of scrutiny involves content accuracy, proofreading, and fact-checking to eliminate any errors. - User Feedback Mechanism:
After a question goes live on our site, we keep the lines of communication open. Each question features a feedback button, inviting users to report any issues or errors. This continuous feedback loop allows us to address and rectify any concerns promptly. - Responsive Updates:
In line with our commitment to accuracy, we quickly update our practice questions to reflect any changes in the provincial government manuals. Additionally, we update the free electronic copy of the province's driver's license manuals on our site, typically within a few days after the government publishes them.
Our thorough quality control process ensures that you have access to practice tests that are as accurate and up-to-date as possible. We believe in the power of well-prepared drivers and are dedicated to providing you with the best study tools to help you succeed on your driver's knowledge exam.
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