Class 4 Commercial Licence Knowledge Test Practice
Rules of the Road · Class 4 Commercial Licence Knowledge Test preparation
* Encouragement copy is based on user feedback; individual results vary. We do not guarantee a passing result — always rely on your provincial driver's official handbook.
About the Class 4 Commercial Licence Knowledge Test
Practice for the Canadian Class 4 commercial driver's licence knowledge test (taxi, ambulance, small bus).
- Authority
- Provincial Authorities
- Jurisdiction
- Class 4 (Commercial)
- Questions
- 40
- Pass mark
- 80%
- Time limit
- 45 min
- Practice bank
- 300 questions
Who should take this exam
The Class 4 Commercial Licence Knowledge Test is intended for candidates preparing for certification or licensing administered by Provincial Authorities in Class 4 (Commercial). If you are studying for this credential, or re-taking after a previous attempt, this practice bank mirrors the official blueprint and is suitable for first-time learners and refreshers alike.
Exam format
- 40 multiple-choice questions on the official test.
- Pass mark: 80% (must answer at least 32 correctly).
- Recommended time limit: 45 minutes.
- Closed-book; calculators and reference material are not permitted unless explicitly allowed by Provincial Authorities.
Study recommendations
- Read the official Provincial Authorities handbook or study guide cover to cover.
- Work through every question in the practice bank above; review the explanation on each miss.
- Use the review queue to loop only the questions you got wrong.
- When you are scoring above 80% consistently, switch to the timed mock exam.
- Take the official test once you can pass three mock exams in a row.
Continue your prep
Related courses
Other Canadian certifications candidates often prepare for alongside this one.
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A Class 4 licence in Canada allows you to drive:
Session
Study tips
Read explanations
Tap any wrong answer to see why.
Master signs
Shape + color tells you the category.
Repeat until 100%
Review mode loops just your misses.
Then go timed
Move to the mock exam when ready.
Frequently asked questions
Prepare for the Canadian Class 4 commercial driver's licence knowledge test (taxi, Uber/Lyft, ambulance, small bus up to 24 passengers) with practice questions covering passenger transport, professional conduct, defensive driving and emergency response.
Disclaimer: This site is an independent third-party study tool. We are not affiliated with, endorsed by, or authorized by any provincial licensing authority (including ICBC, MTO, SAAQ, SGI, MPI, Service NB, Service NL, Alberta Registries) or any Canadian government body. Questions are for study reference only — always refer to your province's current official driver's handbook and regulations.
This website is an independent driving test preparation platform and is not affiliated with Provincial Authorities or any provincial licensing authority. Always refer to the official driver's handbook for legal requirements.