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BC Class 3 Commercial Licence Practice Test 4

  • Perfect for first-time and renewal commercial applicants, and those adding endorsements
  • Based on 2024 BC commercial driver's licence manual
  • Updated for July 2024
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
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BC commercial driver's licence
4.33 out of 5,
3 votes
What you need to know
This practice test will help you prepare for your Class 3 Commercial Licence knowledge exam in British Columbia, Canada in 2024. The multiple-choice questions are designed to cover the same materials used by the actual exam (the same information from the official BC commercial driver's licence manual). For each answer, you'll get a detailed explanation to help you understand and remember the correct answer. Good luck, and see you on the road soon!
What to expect on the official exam
40

questions

32

correct answers to pass

80

passing score

List of questions (classic view)
  1. What should you do if a long downgrade is ahead?
  2. For any coupling device other than a fifth wheel, the drawbar or other connection between the motor vehicle and the trailer may not be longer than _______ unless you’re towing a pole trailer.
  3. Unless your vehicle has antilock brakes (ABS), using light brake pressure on an icy road will
  4. If your vehicle is going to transport logs, which of the following are true?
  5. Vehicles carrying cargo must meet which of the following requirements?
  6. When are water-cooled brakes used?
  7. Before you may obtain a Class 3 driver’s licence, you must be at least ____ years old.
  8. What are the consequences if you exceed your maximum on-duty hours and a peace officer stops you?
  9. What special problems does transporting livestock present?
  10. What are the main components of a simple, basic air brake system?
  11. Before you may apply for a commercial driver’s licence, you must already hold which class of driver's licence?
  12. What determines which truck should use a turnout on a narrow road?
  13. What is an advantage of automatic slack adjusters?
  14. Which of the following are advantages of a dual air brake system?
  15. What are the articulation points of a truck?
  16. You may be fined as much as _______ for driving a vehicle whose brakes are out of adjustment.
  17. Where is a single-unit (straight) truck’s central weight distribution point?
  18. What is a rough guide for spacing tiedowns to secure your load?
  19. Which of the following should you check periodically during your trip?
  20. If your vehicle is carrying cargo, how often must you perform an en-route inspection of the cargo and the cargo securement system?
  21. If a peace officer asks for your logbook and supporting documents, what documents should you provide?
  22. You're driving a vehicle equipped with air brakes. If the low air pressure warning signal comes on, what should you do?
  23. If an air line ruptures between the compressor and the supply reservoir, what will prevent loss of air pressure in the service brake system?
  24. Which of the following factors determine the sharpness of your large vehicle’s turn?
  25. What is the air brake endorsement for industrial roads called?
  26. What is the wheelbase of a vehicle?
  27. When a school bus driver turns on the bus’s alternating flashing red lights, other drivers must
  28. When a tire is underinflated,
  29. When approaching an intersection at which you intend to turn, you should
  30. When should you perform a pre-hill inspection?
  31. If a fire starts in your vehicle, you should do which of the following?
  32. When backing up a large vehicle, you should
  33. To back up with the aid of a guide, what should you do?
  34. Which of the following are true about brake fade?
  35. As air pressure builds during your pre-trip inspection of the air brakes, the low air pressure warning device should deactivate at
  36. Which of the following can increase the danger of crossing railway tracks?
  37. When crossing railway tracks, you should
  38. According to the British Columbia Driving Commercial Vehicles Manual, when you drive a large commercial vehicle on a public roadway, you should leave at least ________ of space between your vehicle and other large commercial vehicles.
  39. Sudden steering movements can
  40. When driving at night, you should do which of the following?