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  • Based on 2025 ON commercial driver's licence manual
  • Updated for April 2025
Embark on the path to driving ambulances and mid-sized buses in Ontario with our Class F Practice Test 1, tailored for April 2025. This practice set, with 50 questions, covers crucial knowledge for passenger safety, vehicle maintenance, and driving skills. If you're over 18 with a valid class G licence, you're eligible to enhance your qualifications. Our test prepares you for the MTO's vision screening, knowledge test, and on-road exam. Study with us and ensure you're ready to meet Ontario's standards for professional drivers.
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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. What does this sign mean?
  2. What does this sign mean?
  3. Why do the hours of service regulations exist?
  4. What does this sign mean?
  5. How do you ease your vehicle into a smooth stop?
  6. When operating an ambulance, when are you allowed to use flashing red lights and sirens?
  7. What does this sign tell you about the road ahead?
  8. What does this sign mean?
  9. What emergency equipment is required in a bus?
  10. What does this sign mean?
  11. Which of the following is a Class B vehicle?
  12. What does this sign mean?
  13. What does this sign mean?
  14. What does this sign tell you?
  15. When is it not necessary to do a shoulder check?
  16. If you're on a 14-day cycle, what is the maximum number of hours you can drive within 14 consecutive days?
  17. If someone is tailgating you, what should you do?
  18. What is total stopping distance?
  19. What does the term "space cushion" mean?
  20. Every written trip inspection report must include which of the following?
  21. If you find a major defect in your vehicle during your pre-trip inspection, when must it be repaired?
  22. What does this sign mean?
  23. What makes the roads extra slippery at the start of a rainfall?
  24. At an intersection with no traffic lights or traffic signs, you should
  25. How often should you look at your mirrors?
  26. What is this sign telling you?
  27. What is this sign telling you?
  28. The minimum following distance for a taxi or ride-hailing (e.g., Uber) vehicle is
  29. What does this sign mean?
  30. What does this sign mean?
  31. What does this sign mean?
  32. Making eye contact with cyclists around your vehicle
  33. Where are a large commercial vehicle's blind spots?
  34. What does this sign mean?
  35. How far back should you stay when following an emergency vehicle with flashing lights and siren on?
  36. What should you do before making a left turn?
  37. What does this sign mean?
  38. What does this sign mean?
  39. Why should you do a shoulder check when making a right turn?
  40. You're driving a taxi, ambulance, or ride-hailing vehicle. What should you do if it starts to skid?
  41. When you conduct a pre-trip inspection of your vehicle, all of the following should be considered major defects EXCEPT
  42. Before you make a left turn in a large school bus, you should do which of the following?
  43. What does this sign mean?
  44. What does this sign mean?
  45. What does this sign mean?
  46. This sign indicates that you may park for one hour
  47. What does this sign mean?
  48. What does this sign mean?
  49. What should you do when driving at night?
  50. If you need to keep a daily log, what else do you need to keep with you?
  51. A bus driver should choose a safe driving speed, primarily based on
  52. What is a danger zone?
  53. An engine governor is
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