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Alberta Class 4 Licence Test 9

  • Perfect for first-time and renewal commercial applicants, and those adding endorsements
  • Based on 2024 AB commercial driver's licence manual
  • Updated for June 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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AB commercial driver's licence
5 out of 5,
1 votes

About this test

Looking to secure a professional driving licence in Alberta? Our Class 4 Licence Test 9 is the perfect study aid, updated for 2024 with 50 critical questions. This practice test is designed to help you navigate through the essentials of commercial driving, including passenger management and safety practices. With no road test to worry about, your focus can be purely on the knowledge and vision tests. For a $17 fee, take the test at any registry agent, aiming for a minimum score of 25 out of 30. Backed by the Commercial Driver’s Guide and the Driver’s Guide, our practice test will help pave your way to a professional driving licence.

List of questions (classic view)

  1. On a left curve when you're pulling a trailer, where should you keep the front of your vehicle?
  2. What is the minimum size required for square chocks for a commercial vehicle?
  3. The law requires that the wheels of a parked vehicle be no more than _______ from the curb.
  4. In the case of a breakdown on a highway outside of an urban area between sunrise and sunset, you should activate your hazard lights and place approved warning devices
  5. What to do when you experience a breakdown on a highway outside urban limits between sunset and sunrise, or anytime visibility is less than 150m?
  6. If a vehicle's load reaches or extends more than 1.5 m past its rear, what is required?
  7. You're driving a school bus. What should you do if the bus breaks down during the day?
  8. You're driving a school bus. What should you do if the bus breaks down during the night?
  9. A broken centre line on a roadway means that you may
  10. A bus driver should choose a safe driving speed, primarily based on
  11. A controlled railway crossing may have
  12. A Slow-Moving Vehicle sign should be placed on any vehicle that travels no faster than
  13. A tire that is overinflated or underinflated can
  14. A tractor-trailer travelling at high speeds creates air turbulence in which of the following areas?
  15. 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?
  16. What is a danger zone?
  17. Which dashboard gauge can help you decide when to upshift?
  18. Airbags are
  19. An engine governor is
  20. Any defect or deficiency that you find on your bus must be
  21. At which of the following engine speeds should you drive your vehicle?
  22. Before you enter a curve, what gear should you select?
  23. Besides regular brake maintenance, who is responsible for ensuring that the brakes of a vehicle are working properly before the vehicle is driven?
  24. Compounding the air brakes can
  25. Different-sized tires can
  26. Double-clutching is
  27. During a pre-hill inspection of a vehicle equipped with air brakes, you should do which of the following?
  28. During your brake tests, you find that the brakes are not operating safely. What should you do?
  29. During your pre-trip inspection, you discover a defect that does not affect the safe operation of the vehicle. What should you do?
  30. For large commercial vehicles, which of the following are advantages of air brakes as compared with hydraulic brakes?
  31. Generally the safest drivers are those who
  32. How can you downgrade from a commercial licence to a non-commercial licence?
  33. How can you ensure smooth braking of a large commercial vehicle?
  34. How can you tell how much air pressure is in the service reservoirs?
  35. How should you drive through a large amount of water on the roadway?
  36. How should you handle driving around a curve?
  37. Idling for longer than five minutes can
  38. If a bus becomes disabled on a roadway during the day, flares or reflectors must be placed approximately _________ in front of and behind the vehicle.
  39. If a crash occurs while you are backing up with the aid of a guide, who will be held responsible?
  40. If a fire starts in your vehicle, you should do which of the following?
  41. If a front tire blows out, what should you do first?
  42. If a peace officer asks for your logbook and supporting documents, what documents should you provide?
  43. If an air line ruptures between the compressor and the supply reservoir, what will prevent loss of air pressure in the service brake system?
  44. If another driver wants to pass your vehicle, what should you do?
  45. If you are parking a bus on a downgrade, you should
  46. If you are parking a vehicle on a downgrade, you should
  47. If you are required to keep a logbook, what must you have in your possession?
  48. If you are parking a single-unit (straight) vehicle on an upgrade without a curb, you should
  49. If you are parking your vehicle on an upgrade without a curb, you should
  50. If you are unable to keep up with traffic on a steep grade, what should you do?
  51. If you intend to make a right turn on a red light, you must
  52. In Alberta, are you allowed to turn right at a solid red light?
  53. How should you communicate with a passenger who is deaf or has hearing loss?
  54. A mobility device is
  55. What should you do before speaking to a person who is deaf or has hearing loss?
  56. What is the appropriate action when transporting a person with a mobility device?
  57. Which of the following are barriers to accessibility?
  58. How should you respond if a passenger is harassing you?