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

Saskatchewan Class 4 Licence Test 5

If you're planning to drive a small bus/school bus (up to 24 passengers), a taxi, or an ambulance in Saskatchewan, you'll need a Class 4 commercial driver's licence. The transportation industry in SK is booming, so now is a great time: Class 4 drivers are in high demand. But in order to drive one or more of those vehicles, you must first learn to drive carefully and safely. So before you can get your Class 4 licence, you must pass both a written and a practical test. The written test (also known as the Saskatchewan Class 4 knowledge exam) has several multiple-choice questions. This 50-question Class 4 practice test is a great way to prepare: all of our questions are based on the official 2025 SK commercial driver's manual. Good luck and drive safely!
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  • Perfect for first-time and renewal commercial applicants, and those adding endorsements
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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.
What to expect on the official exam
25

questions

20

correct answers to pass

80

passing score

List of questions (classic view)
  1. What does this road sign mean?
  2. What does this road sign mean?
  3. What does this road sign mean?
  4. What does this road sign mean?
  5. What does this road sign mean?
  6. What does this road sign mean?
  7. What does this road sign mean?
  8. What does this road sign mean?
  9. What does this road sign mean?
  10. What does this road sign mean?
  11. What does this sign mean?
  12. What does this sign mean?
  13. What does this sign mean?
  14. What does this sign mean?
  15. What does this sign mean?
  16. What does this sign mean?
  17. What does this sign mean?
  18. What does this sign mean?
  19. What does this sign mean?
  20. What does this sign mean?
  21. What does this sign mean?
  22. What does this sign mean?
  23. What does this sign mean?
  24. What does this sign mean?
  25. What does this sign mean?
  26. What does this sign mean?
  27. What does this sign mean?
  28. What does this sign mean?
  29. What does this sign mean?
  30. What does this sign mean?
  31. What does this sign mean?
  32. What does this sign mean?
  33. What does this sign mean?
  34. What does this sign mean?
  35. What does this sign mean?
  36. What does this signal mean?
  37. What is a runaway lane?
  38. What is an advantage of automatic slack adjusters?
  39. What is the best way to check for vehicles in your blind spot?
  40. What is the best way to ensure that there are no vehicles or cyclists in your blind spot?
  41. What is the main purpose of maintaining the correct air pressure in the tires?
  42. What is the most important concern for a bus driver?
  43. What is the purpose of an antilock braking system (ABS)?
  44. What is the purpose of checking your vehicle's slack adjusters?
  45. What is the wheelbase of a vehicle?
  46. What is your most important concern when operating a vehicle used for transporting passengers?
  47. What legal documents are all drivers required to have when operating a vehicle?
  48. What should you do if your headlights fail?
  49. When a tire is underinflated,
  50. When another vehicle is merging into your lane from the right, you should