All your missed questions are saved
automatically for extra practice.
It's a practice test that's automatically made up of all your missed questions. Once you finish this test, you’ll be able to revisit your Challenge Bank™ to practice and sharpen your skills.
View All PlansAdding difficult questions to Challenge Bank™ is an exclusive Premium feature. Unlock access to 270 exam-like questions, a Pass Guarantee, personalized study plans, and more.
View All Plans
The Exam Simulator mimics the actual exam. It will stop once you reach the maximum number of allowed mistakes.
- Based on 2025 ON commercial driver's licence manual
- Updated for May 2025
ON Air Brake Exam Simulator
Commercial drivers must pass a written exam to be licensed to drive in Ontario, Canada. The written exam tests the driver’s knowledge of how to operate a commercial vehicle. This Exam Simulator is just like the official ON Air Brake exam. It contains 25 random questions and will stop as soon as you’ve reached the passing or failing score. You’ll get a new set of questions every time you restart it. The exam simulator is not timed, and you must get at least 80% correct to pass. It is based on the 2025 Ontario commercial driver’s manual.
- Perfect for first-time and renewal commercial applicants, and those adding endorsements
- Triple-checked for accuracy
About this test
questions
correct answers to pass
passing score
List of questions (classic view)
- When you approach a stop sign, you must
- While driving, it's recommended to have your hands placed in the
- This sign is showing that
- Entering a roundabout, you should check for vehicles coming from
- The merge lane on to an expressway should be used
- This sign is alerting you that
- When a lane is closed ahead, drivers should zipper merge by
- Which of the following is NOT a way to let traffic know you are preparing to parallel park?
- When parking on a hill with a curb, if your car is facing uphill, you should
- When sharing the road with a transit bus, you should be aware of which of the following?
- You are not allowed to park on a curve of a road outside a city, town or village, if your vehicle cannot be clearly seen for at least ________ in each direction.
- To pass a slow moving vehicle in a hilly area, you should
- If you see a wild animal in your path while driving, you should
- In case of a collision, you should
- It is especially dangerous to drink alcohol and drive at night because
- This construction sign is showing you that
- Which of the following is NOT an effect of alcohol?
- The minimum age for a class 1, 2, 3, or 4 licence is
- If you are in an intersection when the traffic light turns amber you should
- If a traffic light has a lit green left-arrow AND a lit solid red light that means you can
- A solid white line means
- Which of the following is NOT a legal manoeuvre?
- When driving a vehicle, you must be particularly careful around bicyclists because they
- At a roundabout, the right-of-way belongs to
- Driving directly next to a big truck is considered a No-zone because
- If an emergency vehicle is flashing lights and sounding an alarm while you're driving on a one-way street you should
- If you need to make a right turn, but a transit bus has stopped just short of the intersection on the right hand side, you should proceed by
- The orange hand on a crosswalk light means pedestrians should
- Bicyclists should position themselves on the right side of the roadway, but may change position if
- According to the Manitoba Driver's Handbook, what is the most common cause of vehicle fires?
More resources
- Alberta: Test 1 / Test 2
- British Columbia: 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
- Prince Edward Island: 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.
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 state'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.
The Exam Simulator mimics the actual exam. It will stop once you reach the maximum number of allowed mistakes.
Before you see your results, discover how Premium helps you:
- Real Exam-Like Ontario QuestionsQuestions match official commercial driving tests
- Interactive learningPersonal AI tutor
- 99.06% Verified Pass Rate vs. 49% AverageProven success, specialized for commercial drivers
Trusted by 14,300+ drivers