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Ontario Class D Licence Test 3 2024 | ON

5 out of 5 • 1 votes.
Based on 2024 ON commercial driver's license manual Instant feedback
Getting ready to drive a heavy truck (a truck with more than two axes) in Ontario? You'll need a Class D commercial driver's licence. The transportation industry in ON is booming, so now is a great time: heavy truck drivers are in high demand. As a Class D licenced commercial driver, you can work for a trucking company as an employee, or for yourself as an owner-operator. But in order to drive one of the largest vehicles on the road, you must first learn to drive carefully and safely. So before you can get your Class D licence, you must pass both a written and a practical test. The written test (also known as the Ontario Class D truck driver's knowledge exam) has several multiple-choice questions. This 22-question Class D practice test is a great way to prepare: all of our questions are based on the official 2024 ON commercial driver's manual. As you answer the questions, we recommend checking the explanations to gain some further insight into the rule behind it. Good luck and drive safely!
Ensuring the accuracy and quality of our practice tests is paramount. Learn more about our rigorous standards in our Commitment to Accuracy article.

Perfect for:

  • First-time ON commercial license applicants
  • Existing commercial license holders adding endorsements
  • ON commercial license renewal applicants

More FREE ON Commercial Driving Resources:

  1. General Knowledge 1
  2. General Knowledge 2
  3. General Knowledge 3
  4. General Knowledge 4
  5. General Knowledge 5
  6. General Knowledge 6
  7. General Knowledge 7
  8. Road Signs
  9. Road Signs 2
  10. General Knowledge Marathon
  11. General Knowledge Exam Simulator
  12. Class A Licence Test 1
  13. Class A Licence Test 2
  14. Class A Licence Test 3
  15. Class A Licence Marathon
  16. Class A Licence Exam Simulator
  17. Class B Licence Test 1
  18. Class B Licence Test 2
  19. Class B Licence Test 3
  20. Class B Licence Test 4
  21. Class B Licence Test 5
  22. Class B Licence Test 6
  23. Class B Licence Test 7
  24. Class B Licence Test 8
  25. Class B Licence Test 9
  26. Class B Licence Test 10
  27. Class B Licence Test 11
  28. Class B Licence Marathon
  29. Class B Licence Exam Simulator
  30. Class C Licence Test 1
  31. Class C Licence Test 2
  32. Class C Licence Test 3
  33. Class C Licence Test 4
  34. Class C Licence Test 5
  35. Class C Licence Test 6
  36. Class C Licence Test 7
  37. Class C Licence Test 8
  38. Class C Licence Test 9
  39. Class C Licence Test 10
  40. Class C Licence Test 11
  41. Class C Licence Marathon
  42. Class C Licence Exam Simulator
  43. Class D Licence Test 1
  44. Class D Licence Test 2
  45. Class D Licence Test 3 (you are here)
  46. Class D Licence Marathon
  47. Class D Licence Exam Simulator
  48. Class F Licence Test 1
  49. Class F Licence Test 2
  50. Class F Licence Test 3
  51. Class F Licence Test 4
  52. Class F Licence Test 5
  53. Class F Licence Test 6
  54. Class F Licence Test 7
  55. Class F Licence Marathon
  56. Class F Licence Exam Simulator
  57. Air Brake Test 1
  58. Air Brake Test 2
  59. Air Brake Test 3
  60. Air Brake Test 4
  61. Air Brake Test 5
  62. Air Brake Test 6
  63. Air Brake Test 7
  64. Air Brake Test 8
  65. Air Brake Test 9
  66. Air Brake Test 10
  67. Air Brake Test 11
  68. Air Brake Test 12
  69. Air Brake Test 13
  70. Air Brake Test 14
  71. Air Brake Marathon
  72. Air Brake Exam Simulator
  73. AZ Licence Exam Simulator

List of questions (classic view)

  1. Which parties are responsible for ensuring the correct and compliant weight of a shipment?
  2. What does this sign mean?
  3. When must a carrier check your driving record?
  4. What does this sign mean?
  5. Compared with the service tanks, how much moisture should the supply tank discharge?
  6. As a commercial driver, you are expected to practice
  7. In your daily log, you must record which of the following?
  8. When brakes become overheated, they also become
  9. The maximum length for a straight truck without a special permit is
  10. A commercial vehicle may not be taller than _________ unless a special oversize permit is obtained.
  11. Hours of service regulations let a driver choose one of two cycles
  12. In a vehicle equipped with air brakes, differently sized brake chambers on opposite sides of the same axle can cause
  13. When inspecting the brake chambers in a vehicle equipped with air brakes, you should check for which of the following?
  14. What is the wheelbase of a vehicle?
  15. What does this sign mean?
  16. What does this sign mean?
  17. What does this sign mean?
  18. What does this sign tell you about the road ahead?
  19. You're driving on a curve to the left. How can you ensure that your rear wheels stay in your lane?
  20. What is a commercial vehicle's danger zone?
  21. What does this sign mean?
  22. Every professional driver must take at least ________ off duty every day.