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Based on 2025 ON commercial driver's licence manual
Updated for June 2025
ON Class C Commercial Licence Practice Test 9
Ontario Commercial Class C Test 9 brings an advanced level of questioning, focusing on specialized topics as per the 2025 Ontario commercial driver’s manual. This test encompasses areas such as risk management, advanced driving strategies, and legal aspects of Class C vehicle operation. Test 9 is designed to fine-tune your knowledge and prepare you for the higher-level complexities of the Class C licensing exam.
Perfect for first-time and renewal commercial applicants, and those adding endorsements
Triple-checked for accuracy
About this test
5 out of 5 • 1 votes
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.
List of questions (classic view)
What does this sign mean?
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What does this sign mean?
What does this sign mean?
What does this sign mean?
What does this sign mean?
What does this sign mean?
What does this sign mean?
What does this sign mean?
What does this sign tell you about the road ahead?
What does this sign tell you?
What does this sign mean?
What does this signal mean?
What emergency equipment is required in a bus?
What is a runaway lane?
What is an advantage of automatic slack adjusters?
What is the best way to check for vehicles in your blind spot?
What is the best way to ensure that there are no vehicles or cyclists in your blind spot?
What is the purpose of an antilock braking system (ABS)?
What is the purpose of checking your vehicle's slack adjusters?
What is the wheelbase of a vehicle?
What is this sign telling you?
What is this sign telling you?
What is your most important concern when operating a vehicle used for transporting passengers?
What is total stopping distance?
What legal documents are all drivers required to have when operating a vehicle?
What makes the roads extra slippery at the start of a rainfall?
What does this sign tell you about the road ahead?
What does this sign tell you?
What does this sign mean?
What does this signal mean?
What emergency equipment is required in a bus?
What is a runaway lane?
What is an advantage of automatic slack adjusters?
What is the best way to check for vehicles in your blind spot?
What is the best way to ensure that there are no vehicles or cyclists in your blind spot?
What is the purpose of an antilock braking system (ABS)?
What is the purpose of checking your vehicle's slack adjusters?
What is the wheelbase of a vehicle?
What is this sign telling you?
What is this sign telling you?
What is your most important concern when operating a vehicle used for transporting passengers?
What is total stopping distance?
What legal documents are all drivers required to have when operating a vehicle?
What makes the roads extra slippery at the start of a rainfall?
What should you do before making a left turn?
What should you do if your headlights fail?
What should you do to prevent a vehicle fire?
What should you do when driving at night?
When a tire is underinflated,
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 ZakhareuskiUpdated 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.
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