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  • Based on 2025 ON commercial driver's licence manual
  • Updated for January 2025

Kickstart your journey to becoming a professional Class C vehicle driver in Ontario with our Commercial Class C Test 1. This practice test is the first step in your preparation, designed to introduce you to the types of questions you’ll encounter on the actual Ontario Class C commercial driver’s license exam. Featuring a carefully selected set of questions based on the 2025 Ontario commercial driver’s manual, this test covers crucial topics such as vehicle operation, safety regulations, and road laws specific to Class C vehicles. Our realistic format and diverse question bank ensure a comprehensive understanding of the fundamental concepts. Each question is accompanied by detailed explanations, providing valuable insights and learning opportunities. Ideal for beginners, this test lays a strong foundation for your Class C license exam preparation, enhancing your knowledge and boosting your confidence for the challenges ahead.

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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
50

questions

40

correct answers to pass

80

passing score

List of questions (classic view)
  1. A bus driver should choose a safe driving speed, primarily based on
  2. The air pressure of a spare tire should equal
  3. When should the bus driver perform a safety check of the bus?
  4. You're approaching an intersection, and you notice that the roadway beyond the intersection is blocked with traffic. What should you do?
  5. When travelling slower than the other traffic, you should
  6. If you're approaching a level railway crossing that is not protected by gates or railway crossing signals, what should you do?
  7. A vehicle being used for the removal of snow from a roadway must be equipped with a
  8. What is the main purpose of maintaining the correct air pressure in the tires?
  9. Under Ontario law, when a school bus stops with its red signals flashing, other drivers must
  10. A broken centre line on a roadway means that you may
  11. Which of the following equipment items is NOT required on a school bus?
  12. If a front tire blows out, what should you do first?
  13. If your right wheels drop off the roadway, what should you do to get back onto the roadway?
  14. Generally the safest drivers are those who
  15. If a bus becomes disabled on a roadway at night, flares or reflectors must be placed approximately _________ in front of and behind the vehicle.
  16. When driving in fog, you should use
  17. You're driving on a two-way street when you hear the siren of an approaching emergency vehicle. Under Ontario law, what must you do?
  18. What is the most important concern for a bus driver?
  19. If your vehicle lacks antilock brakes (ABS), how can you stop quickly on a wet or icy roadway?
  20. When travelling at over 60 km/h (40 mph), a bus driver must maintain a following distance of at least _________ behind the vehicle ahead, except when passing.
  21. Until which age can a driver submit a medical report every five years?
  22. How should the air pressure in your spare tire compare to the rest of the tires on your vehicle?
  23. When you start a vehicle with a standard transmission, press the clutch pedal. The clutch should engage without
  24. Can medical professionals be legally obligated to report your health issues that could impact your driving abilities?
  25. How soon after installation should wheel fasteners be inspected, according to manufacturers' recommendations?
  26. How frequently must drivers between the age of 46 and 64 submit a medical report?
  27. Who bears the responsibility for ensuring the operational safety of a commercial motor vehicle?
  28. Where is the decal placed if a bus passes an inspection?
  29. What action should a driver take if a minor defect is discovered on the vehicle?
  30. Drivers aged 65 and older must submit a medical report every how many years?
  31. Can your licence be denied if your physical or medical condition fails to meet the standards defined by the Highway Traffic Act regulations?
  32. How often are bus operators required to get their vehicles inspected?
  33. When applying for a licence to drive a bus, do you need to submit a filled out ministry medical certificate?
  34. What is the minimum age requirement to drive a bus with a Class C or F licence?
  35. What is not a part of your road test for Class C and F?
  36. What should you expect when checking your brakes?
  37. Can a driver operate a vehicle with a major defect?
  38. Why is it important for a driver to regularly check all vehicle systems throughout the day for defects?
  39. Which of the following vehicles doesn't use schedule 2 for inspections?
  40. Which of the following statements is false in relation to broken springs, ruptured air bags and faulty shock absorbers?
  41. Do police officers or appointed ministry officers have the right to perform a safety inspection on your vehicle at any time and location?
  42. A driver is not permitted to drive a bus, motor coach, school bus, or a school-purposes vehicle unless someone has conducted an inspection of the vehicle and completed an inspection report within the previous
  43. What is another term used to describe the free play in the steering system?
  44. Which of these class of licenses allows you to drive a school-purpose bus?
  45. How can you determine if the parking brake is functioning correctly during daily road checks?
  46. For a Class C or F licence, what is the minimum class of licence you must have?
  47. A Class C licence will allow you to drive any bus (other than a school-purposes bus) that seats more than
  48. Which class of licence is required to drive an ambulance or a bus with seating for up to 24 passengers, not including a school-purposes bus?
  49. What licence class must you hold to drive any school-purpose bus with seating for more than 24 passengers?
  50. When can you attempt a knowledge test for a Class C or F licence?
  51. What is not an essential aspect to check during a fuel system inspection?