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SK Air Brake Test 10

  • Perfect for first-time and renewal commercial applicants, and those adding endorsements
  • Based on 2024 SK commercial driver's licence manual
  • Updated for June 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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SK commercial driver's licence
5 out of 5,
1 votes

About this test

From Saskatoon's bustling streets to the open fields of the Prairies, air brake knowledge is crucial. This 50-question test focuses on the variety of driving conditions you'll encounter in Saskatchewan, all aligned with 2024 regulations.

List of questions (classic view)

  1. With the ignition key on and air pressure dropped by intentionally applying the brakes, at what minimum pressure should the low warning system operate?
  2. Which of the following is not a part of the pre-trip inspection process for an air single unit?
  3. What is the primary function of the application pressure gauge in an air brake system?
  4. What is a crucial element to inspect after performing a slack adjustment on your air brake system?
  5. Can you describe the parking brake valve control found in most commercial vehicles?
  6. Upon reconnecting the air lines and charging the trailer, what is the maximum air loss you should observe within one minute of a full foot-brake application?
  7. Who needs to make sure that the brakes' slack adjusters are functioning correctly?
  8. What determines the extent of a driver's responsibility for making repairs to an air brake system?
  9. What are the draincocks in an air brake system used for?
  10. What is the main function of a quick release valve in an air brake system?
  11. When you stop your vehicle in a pull-out area before continuing down a steep hill, make sure that all of these are true EXCEPT
  12. Which of the following is not a step you would normally perform during the pre-trip inspection of a tractor-trailer's air brakes?
  13. If you are unable to properly adjust pushrod travel with any of the usual methods, what should you do?
  14. What should the cut-out pressure be during the governor operation pre-trip procedure for an air combination unit?
  15. Up to what length of stroke is the amount of force available at the push rod consistent?
  16. During a pre-trip inspection for an air combination unit, you make and hold a foot brake application with both the supply and service lines disconnected. What should you check for?
  17. To bring a vehicle to a halt in the same distance when its weight has been doubled, the braking force should be what?
  18. What powers the compressor in a vehicle's air brake system?
  19. Where does a compressor pump the air in a vehicle's braking system?
  20. What is leveraged to gain a mechanical advantage in a braking system?
  21. What causes the wheels to stop spinning in a braking system?
  22. What could result from improperly adjusted brakes on one or two wheels of a vehicle?
  23. What influences the distance needed to bring a vehicle to a complete stop?
  24. What is the device that provides compressed air in a brake system known as?
  25. What is a common device used to obtain a mechanical advantage in braking systems?
  26. If a vehicle's compressor is belt-driven, what should you inspect the belts for?
  27. What term is used to denote air that has been forced into a smaller space?
  28. What is transmitted through an air brake system using compressed air?
  29. Where does the heat generated from the friction between brake drums and linings go?
  30. Which statement is untrue about the stopping distance?
  31. In an air brake system, what does the unloading stage signify?
  32. If a vehicle's speed is doubled, by how much must the braking force be increased to stop in the same distance?
  33. What is the optimal operating temperature for most brake linings?
  34. Approximately how long does it take from identifying a hazard to applying the brakes?
  35. What is the maximum operating temperature for most brake linings?
  36. Above what pressure will the compressor not have to pump air in the system?
  37. The compressor must start pumping air into the system by the time that air pressure falls to
  38. Which of the following is not one of the main components in a basic air brake system capable of stopping a vehicle?
  39. Overheating in brakes could lead to what adverse condition?
  40. When both the weight and speed of a vehicle are doubled, the braking force must be adjusted by what factor to stop in the same distance?
  41. What term is used to describe the time taken for air to travel through a properly maintained air brake system?
  42. When brakes generate heat, where does this heat eventually go?
  43. Which component controls when the compressor pumps air by monitoring the minimum and maximum air pressure in the system?
  44. What does the friction between brake drums and linings produce in a braking system?
  45. What is the determining factor for the amount of heat the brake drums can absorb?
  46. What does the term loading stage signify in an air brake system?
  47. Why is the sensation different when operating air treadles compared to hydraulic brakes?
  48. What is the consequence of not maintaining slack adjusters within their specified limits?
  49. What are the alternate names for the primary and secondary reservoirs in an air brake system?
  50. What accumulates at the bottom of the supply reservoir in an air brake system?