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    BC Air Brake Test 6 2023

    5 out of 5 • 1 votes.
    Based on 2023 BC commercial driver's license manual Instant feedback
    Whether you're navigating the winding Sea-to-Sky Highway or the busy corridors of Vancouver, mastering air brakes is non-negotiable for commercial drivers in British Columbia. Our Practice Test 6, featuring 50 questions, helps you take the first steps toward acing the province's official Air Brake test. Tailored to the BC commercial driver's manual and updated for 2023, this test is a reliable resource for your preparations.

    Perfect for:

    • First-time BC commercial license applicants
    • Existing commercial license holders adding endorsements
    • BC commercial license renewal applicants

    BC Commercial Driving Handbook

    View the most recent (2023) official BC Commercial Driving Handbook.

    Read online or download

    List of questions (classic view)

    1. If your vehicle is equipped with automatic slack adjusters, why must you fully apply the service brakes regularly?
    2. Wedge brakes are designed to be
    3. Where are the air brake chambers located?
    4. What does an ABS system do?
    5. When you are going at twice the speed, your service brakes will need to work _________ to stop your vehicle.
    6. Which of these significantly decreases the braking force produced at the wheel?
    7. Which type of trailer can be towed before the service tanks are full?
    8. In determining how well your air brake system works, which is NOT a significant factor?
    9. In large commercial vehicles, most air brake systems use automatic valves to
    10. Where are a vehicle's air tanks located?
    11. What is the "cut-in" level?
    12. Your vehicle passes the tug test of the parking brakes if
    13. If the brake chambers on opposite sides of an axle are of different sizes, the result may be
    14. To check the brake chambers for leaks, you should
    15. in a drum brake, the brake lining is fastened to
    16. Compared with the service tanks, how much moisture should the supply tank discharge?
    17. If the low air pressure warning activates, you should
    18. To inspect an air brake system, you should wear
    19. The best way to reduce rough and abrupt braking is to
    20. What are the service brakes used for?
    21. Manufacturers recommend draining moisture and oil in an air brake system on a _______ basis.
    22. What is the "cut-out" level?
    23. What happens to the foot valve when you press down on the brake pedal?
    24. Why is it important to know which parts of the air brake system exhaust air?
    25. Which of these can strain your vehicle's braking system?
    26. What powers the air compressor?
    27. Which of these can contaminate a brake system's air lines?
    28. Do air brake chambers come in a variety of sizes?
    29. The air brake chamber includes all of the following parts EXCEPT
    30. Air resistance increases what parameter?
    31. What does the term "brake lag time" mean?
    32. Is it possible for brake drums to expand and disengage from the shoes?
    33. Which of these statements is accurate regarding the stopping force at the wheel?
    34. Which of these is used to measure whether the brake is within proper adjustment tolerance?
    35. What does the movement of the piston create in the cylinder of the compressor?
    36. Are air brake systems designed to be tolerant of minor leaks?
    37. What is the common brake lag time from when you apply the brake pedal to when the brake is actually applied at the wheel?
    38. "Brake fade" refers to which scenario?
    39. Which of the following can distinguish a long stroke brake chamber from a regular (short stroke) brake chamber?
    40. The angle between the slack adjuster and the pushrod is approximately
    41. What common method is used on heavy trucks to prevent the compressor from overheating?
    42. What does the term "foundation brake" mean in the context of air brake systems?
    43. What is the function of the air brake chamber?
    44. Why would a vehicle operator opt for air brakes?
    45. What function does the delivery line perform in an air brake system?
    46. Air brakes are primarily used as a replacement for which other type of brake system?
    47. When does the air brake system's compressor produce air?
    48. How much pushrod force does an air pressure of 100 psi generate in a Type 30 brake chamber?
    49. What causes the extension of the pushrod out of the brake chamber?
    50. What does the resistance of air in an air brake system result in?