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  • Based on 2025 MB commercial driver's licence manual
  • Updated for May 2025

FREE Manitoba Class 4 Licence Test

There is a steady demand for Class 4 licence holders in Manitoba, where the transportation industry is rapidly expanding. To drive an ambulance, a taxi, or a bus with up to 24 passengers, you must go through the licensing process and follow MPI’s requirements for obtaining a Class 4 licence. Start by studying the official Manitoba professional driver’s manual, which describes the various aspects of commercial driving theory in detail. Read its contents at least once. When you’re ready, use our Manitoba Class 4 licence practice test to evaluate your knowledge.

Designed to help you pass the official exam on your first attempt, this intuitive tool can significantly boost your learning potential. Incorporate it into your study routine, which you should follow consistently. You get unlimited attempts and nonstop access to these practice test questions so that you can benefit from flexibility during your learning phase. All 50 questions have multiple choices, but only one is correct. If you make a mistake, we will point it out immediately so you won’t have to wait until the test ends to know where you went wrong.

Our automated assistant will be present during your training sessions, ready to help you whenever needed. When you encounter a difficult question, you can request hints that nudge you in the right direction without revealing the correct answer. The AI coach is ready to explain the most complex aspects of commercial driving theory clearly, helping you understand this subject. For each question you get wrong, we provide a detailed explanation of the correct answer. Please pay attention to this feedback, as it helps reinforce your knowledge and learn from your mistakes. Additionally, each question you get wrong will be automatically forwarded to your personal Challenge Bank™, which you can visit between your training sessions.

As you begin your learning phase, you must invest the time and effort necessary to learn commercial driving theory and build your driving skills. With repetition and consistency, you can master this subject and pursue your dream career in Manitoba.
Pass the first time with Premium
MB commercial driver's licence
  • Perfect for first-time and renewal commercial applicants, and those adding endorsements
  • Triple-checked for accuracy
What you need to know
5 out of 5 • 1 votes
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 not a Class 4 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. A broken centre line on a roadway means that you may
  27. A bus driver should choose a safe driving speed, primarily based on
  28. A controlled railway crossing may have
  29. A light-rail transit (LRT) train may take up to ________ to stop in an emergency.
  30. A Slow-Moving Vehicle sign should be placed on any vehicle that travels no faster than
  31. A tire that is overinflated or underinflated can
  32. A tractor-trailer travelling at high speeds creates air turbulence in which of the following areas?
  33. 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?
  34. A white diamond marking in your lane indicates that
  35. A white X pavement marking in your lane means that
  36. What is a danger zone?
  37. Which dashboard gauge can help you decide when to upshift?
  38. Airbags are
  39. An engine governor is
  40. An octagonal (eight-sided) red sign is
  41. An oncoming vehicle at night has not dimmed its high-beam headlights. What should you do?
  42. Any defect or deficiency that you find on your bus must be
  43. At a railroad crossing, flashing red lights and ringing bells mean that
  44. At a stop sign, you must
  45. At an intersection, the traffic light is red, but a police officer motions you to go through. What should you do?
  46. At what speed should you back up your vehicle?
  47. At which of the following engine speeds should you drive your vehicle?
  48. Before you drive your vehicle, you should
  49. Before you drive, you should
  50. Before you enter a curve, what gear should you select?
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