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  • Based on 2025 BC commercial driver's licence manual
  • Updated for January 2025
With a BC Class 3 commercial licence, you can drive large trucks with more than 2 axles, like straight-body trucks, heavy equipment trucks like mixer or dump trucks, tow trucks of any weight, and mobile truck cranes. You can also tow a tractor or vehicle provided it is not equipped with air brakes. With a Class 3 licence you cannot drive vehicles from other classes except for Class 5. This practice test will help you prepare for your Class 3 knowledge exam by quizzing you on the multiple-choice questions from the official manual.
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  • Perfect for first-time and renewal commercial applicants, and those adding endorsements
  • Triple-checked for accuracy
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 official exam
40

questions

32

correct answers to pass

80

passing score

List of questions (classic view)
  1. In the context of commercial driving, what is a turnout?
  2. A controlled railway crossing may have
  3. What are some uses of governors?
  4. If you place a very heavy load on one side of a vehicle, what may happen?
  5. Which of the following are true about a humpback railway crossing?
  6. Where are a large vehicle's blind spots?
  7. How should a long, heavy load be placed on a single-unit (straight) truck?
  8. Different-sized tires can
  9. On a long, narrow stretch of highway, a truck has just reached a passing lane. The truck is travelling very slowly. What should the driver of the truck do?
  10. A Class 3 driver's licence allows you to drive which of the following?
  11. A Slow-Moving Vehicle sign should be placed on any vehicle that travels no faster than
  12. Under hours of service regulations, a sleeper berth can be
  13. What can cause a trailer to swerve or whip across the roadway?
  14. A tiedown assembly can be made of
  15. A tiedown must not be used for cargo securement if
  16. A vehicle that is twice the weight of a car and is travelling at twice the speed of that car requires how much braking power to stop in the same distance?
  17. A vehicle with a higher centre of gravity is
  18. Why should you adjust your head restraint so its top is at least level with the top of your head?
  19. After working 120 hours in a 14-day cycle, drivers must take ____ consecutive hours of off-duty time before taking 70 hours of on-duty time.
  20. Airbags are
  21. When can flashing amber lights be mounted on a vehicle?
  22. What is an aggregate load?
  23. When must an aggregate load be covered?
  24. Before you enter a curve, what gear should you select?
  25. Which of the following statements about a vehicle's retarder is FALSE?
  26. What effects can a poorly distributed load have on your vehicle?
  27. What is the purpose of an antilock braking system (ABS)?
  28. When you're driving on a slippery road, hard braking may cause
  29. The Motor Vehicle Act gives public transit buses the right-of-way. What does this mean?
  30. Written inspection reports must be completed daily by the drivers of which vehicles?
  31. Double-clutching is
  32. Drivers must hold an industrial air brake endorsement if they will be __________ on industrial roads.
  33. Drivers on Cycle 1 must not drive after completing ____ hours of on-duty time in seven consecutive days.
  34. Drivers on Cycle 2 must not drive after completing ____ hours of on-duty time in 14 consecutive days.
  35. Which of the following drivers are exempt from wearing seatbelts?
  36. In the context of commercial cargo securement, what is dunnage?
  37. During a pre-hill inspection of a truck equipped with air brakes, you should do which of the following?
  38. During a pre-hill inspection of a vehicle equipped with hydraulic brakes, you should do which of the following?
  39. As part of your pre-trip inspection of a single-unit (straight) truck with air brakes, you should make sure that the air-loss rate per minute is not greater than
  40. Every motor vehicle must be equipped with at least ______ separate braking systems.