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ON Class C Commercial Licence Practice Test 10

  • Perfect for first-time and renewal commercial applicants, and those adding endorsements
  • Based on 2024 ON 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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ON commercial driver's licence
5 out of 5,
1 votes
What you need to know
Advance towards mastery with Ontario Commercial Class C Test 10. Aligned with the 2024 Ontario commercial driver’s manual, this test presents sophisticated scenarios and questions on diverse aspects of Class C vehicle operation, including advanced road safety, intricate logistics, and environmental considerations. Test 10 is ideal for those close to completing their preparation and seeking to reinforce their comprehensive understanding.
What to expect on the official exam



correct answers to pass


passing score

More 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 (you are here)
  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
  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 Test 8
  56. Class F Licence Marathon
  57. Class F Licence Exam Simulator
  58. Air Brake Test 1
  59. Air Brake Test 2
  60. Air Brake Test 3
  61. Air Brake Test 4
  62. Air Brake Test 5
  63. Air Brake Test 6
  64. Air Brake Test 7
  65. Air Brake Test 8
  66. Air Brake Test 9
  67. Air Brake Test 10
  68. Air Brake Test 11
  69. Air Brake Test 12
  70. Air Brake Test 13
  71. Air Brake Test 14
  72. Air Brake Marathon
  73. Air Brake Exam Simulator
  74. AZ Licence Exam Simulator
List of questions (classic view)
  1. When another vehicle is merging into your lane from the right, you should
  2. When approaching a narrow bridge from a curve, you should
  3. When approaching an intersection at which you intend to turn, you should
  4. When are water-cooled brakes used?
  5. When adjusting a manual slack adjuster, how can you tell whether you are turning the adjusting bolt in the correct direction?
  6. When backing up a large vehicle, you should
  7. When braking, just before you come to a stop, you should
  8. When can a vehicle with just one occupant (the driver) use this lane?
  9. When can you drive side by side with a motorcycle in one lane?
  10. When can you refuse to transport a passenger?
  11. When driving a school bus, you must NOT do which of the following?
  12. When driving behind a large commercial vehicle, you must make sure that you can see
  13. When driving in heavy fog, you should use
  14. When driving in the United States, you may drive no more than ____ hours during your on-duty time.
  15. When driving in the Yukon or Northwest Territories, you can be on duty for no more than ____ hours at a time.
  16. When driving in the Yukon or Northwest Territories, you may drive no more than ____ hours during your on-duty time.
  17. When driving, the holder of a Class 5–GDL (Probationary) licence must not have a blood alcohol concentration greater than
  18. When driving at night, you should do which of the following?
  19. When fuelling a vehicle, you should NOT
  20. When is it especially important to look out for wild animals on the road?
  21. When is it not necessary to do a shoulder check?
  22. When must you yield the right-of-way to an emergency vehicle that is sounding a siren?
  23. When parking a vehicle with a manual transmission facing uphill, you should always leave the parking brake on and the transmission in
  24. When passing parked cars in a bus, what should you do?
  25. When pulling away from the curb in a bus, you should
  26. When pulling out from an alley, you must
  27. When refuelling a school bus, you must
  28. When refuelling your vehicle, you should
  29. When should you check the tire pressures?
  30. When transporting persons with disabilities, you should do all of the following EXCEPT
  31. When traveling down a steep hill, you should NOT
  32. When travelling downhill, what can you do to prevent your brakes from overheating?
  33. When turning left from one two-way street onto another, where should you begin your turn?
  34. When using the applied stroke method to check pushrod stroke, how much pressure should you apply to the service brakes?
  35. When you are following a motorcycle, allow extra space between your vehicle and the motorcycle because
  36. When you are preparing to make a right turn from the right lane, you should shoulder check to the right to make sure
  37. When you conduct a pre-trip inspection of your vehicle, all of the following should be considered major defects EXCEPT
  38. When you encounter a flashing yellow signal at an intersection, what should you do?
  39. When you press down on the clutch in a vehicle with manual transmission, what does it do?
  40. When you see a potential hazard in your danger zone, you should
  41. When you're driving in an urban area, you should scan ahead about
  42. Where are a large commercial vehicle's blind spots?
  43. Where are a large vehicle's blind spots?
  44. Where would an air dryer be installed in an air brake system?
  45. Which of the following are advantages of a dual air brake system?
  46. Which of the following are true about a humpback railway crossing?
  47. Which of the following are true about brake fade?
  48. Which of the following can impair your ability to safely operate a vehicle?
  49. Which of the following can impair your driving?
  50. Which of the following can increase the danger of crossing railway tracks?
  51. Which of the following factors determine the sharpness of your large vehicle’s turn?
  52. Which of the following may reduce the amount of steering control you have?
  53. Which of the following should you check periodically during your trip?