QC Air Brake Test 5 2024

1. Assuming good traction and constant vehicle weight, if you double your vehicle's speed, your vehicle's braking distance will be
2. Which of the following is an advantage of wedge brakes over S-cam drum brakes?
3. Assuming good traction and constant vehicle speed, if you double your vehicle's weight, your vehicle's braking distance will be
4. When inspecting air brakes, you should wear
5. For inspecting the air brakes, when should you chock the wheels?
6. How can manual slack adjusters be adjusted?
7. How should you test the spring brakes?
8. Brake chambers of size 36 are marked with
9. __________________are conected to the brake spider in "S" cam brake system.
10. Automatic slack adjusters must be inspected
11. Which of the following is most likely to have air brakes?
12. It is preferable to test the brakes of towing vehicle with
13. An antilock braking system (ABS)
14. What to do when low air warning device activates on the road?
15. The spring brakes are for
16. Who can adjust the air brakes?
17. How can you make sure that each air tank is securely attached to the vehicle?
18. What does caging a brake chamber do?
19. On a tractor-trailer, the red dashboard knob controls the spring brakes on __________, and the yellow dashboard knob controls the spring brakes on _________.
20. Brakes are designed to withstand temperatures of up to
21. DD3 safety actuators are mostly found in
22. Trailer hand valve located on the tractor dashboard used to apply
23. Which of the following is not a part of a braking system?
24. How many airlines go to DD3 safety actuator brake chamber?
25. Easiest way to test trailer`s spring brakes is
26. Which of the following is most likely to lead to brake fade?
27. When inspecting the air brake chambers, what should you look for?
28. Brake fade can lead to
29. Under the Ontario Highway Traffic Act, how often must air brakes be inspected?
30. To test the trailer's service brakes independently of the tractor's service brakes, what should you do?
31. When inspecting the brake drums, you should look for
32. If the low air pressure warning activates, you should
33. To inspect an air brake system, you should wear
34. The best way to reduce rough and abrupt braking is to
35. What are the service brakes used for?
36. Manufacturers recommend draining moisture and oil in an air brake system on a _______ basis.
37. What is the "cut-out" level?
38. What happens to the foot valve when you press down on the brake pedal?
39. Why is it important to know which parts of the air brake system exhaust air?
40. Which of these can strain your vehicle's braking system?
41. What powers the air compressor?
42. Which of these can contaminate a brake system's air lines?
43. A drum brake system contains brake shoes with linings. What do they do?
44. When your road tractor is not hitched to a semi-trailer or trailer, you should connect each brake hose coupler to
45. Which is NOT a step to optimize the play or space between the linings and the drum?
46. What would happen if your vehicle lacks automated self-adjusting brake levers?
47. A disc brake is composed of a disc installed on the hub and brake linings (or 'pads') that are secured by what component?
48. When emergency brakes are activated, the wheels equipped with brake chambers start to lock once the air pressure decreases to below what threshold?
49. When you disengage the parking brake, where is the air directed?
50. In comparison to drum brakes, what do disc brakes consume less of?
51. The parking brake is equipped with what component, allowing for a mechanical application of the brake when the vehicle is parked?