Chapter 2: heavy vehicle braking
1 / 59
1. Anti-lock braking systems (ABS) are:
2 / 59
2. Excessive use of the brakes could result in a buildup of more heat than the brakes can absorb and dissipate. What negative thing can happen if there is too much heat?
3 / 59
3. In normal stopping, the brake components heat up to about ....
4 / 59
4. What do retarders do for the vehicle?
5 / 59
5. If you have to drive through water on the roadway, place a slight drag on the brakes to
6 / 59
6. Bald or defective tires may....
7 / 59
7. A vehicle that is twice the weight of a car and is traveling at twice the speed of that car requires how much braking power to stop in the same distance:
8 / 59
8. When brake fade occurs:
9 / 59
9. The final factor in stopping is in the contact between... through the tires.
10 / 59
10. When traveling down a steep hill, you should:
11 / 59
11. Reaction time:
12 / 59
12. Revolutions per minute, or R.P.M., are:
13 / 59
13. Even though it may have a diesel engine producing over 400 hp, because of the weight of the combination and its load, how long can it take to accelerate up to 100 km/h?
14 / 59
14. In stopping a vehicle, the energy of motion is converted to the energy of heat through ....... between the lining/pad and drum/rotor surfaces of the vehicle's brakes.
15 / 59
15. Engine retarders work best at?
16 / 59
16. What should drivers continuously do if the danger zone becomes occupied?
17 / 59
17. A rotor is part of which of the following brake system?
18 / 59
18. Drivers of buses, trucks and other large heavy vehicles should never be less than ......... behind the vehicle ahead at highway speeds.
19 / 59
19. Does ABS allow you stop sooner?
20 / 59
20. Even though the energy of motion turns the vehicle's wheels, the vehicle won't go anywhere unless there's...... between the tires and road surface.
21 / 59
21. Anti-lock braking systems (ABS) are:
22 / 59
22. Which sentence is correct?
23 / 59
23. To ensure a smooth, controlled stop every time;
24 / 59
24. Braking forcefully when driving a combination-unit vehicle on slippery roads may cause:
25 / 59
25. Brake fade occurs when
26 / 59
26. The average driver's reaction time is about....
27 / 59
27. The most common air brake system defect found is?
28 / 59
28. To stop safely,
29 / 59
29. Total stopping time =
30 / 59
30. The brakes, tires and suspension of a combination vehicle work best when:
31 / 59
31. If you must drive more slowly than the traffic flow you should:
32 / 59
32. Brakes convert the energy of motion back into what?
33 / 59
33. Which of the following increases the most when you go faster?
34 / 59
34. An engine brake retarder is:
35 / 59
35. How does the generation of heat help stop the vehicle?
36 / 59
36. A rotor is part of which of the following brake system?
37 / 59
37. When stopping in an emergency with ABS brakes you should:
38 / 59
38. What's another name for engine retarders?
39 / 59
39. ... provide an auxiliary slowing effect and assist the main brake system to slow the vehicle.
40 / 59
40. Stopping on icy roads requires:
41 / 59
41. Truck drivers should:
42 / 59
42. Using light brake pressure on an icy road will:
43 / 59
43. A commercial driver should mount chains on their tires
44 / 59
44. Other than vehicle weight and speed, what is another factor that affects stopping distances?
45 / 59
45. In normal stopping, the brake components heat up to about ....
46 / 59
46. To prevent your vehicle from jerking back after it is fully stopped, you should:
47 / 59
47. To dry out your brakes during extremely wet conditions you should:
48 / 59
48. In ideal driving conditions, passenger cars and light trucks should be at least how many seconds behind the vehicle they are following?
49 / 59
49. Total stopping time:
50 / 59
50. What is the final factor that will determine if the vehicle will move?
51 / 59
51. When you see a problem a head while driving
52 / 59
52. Speed and Weight facts: 2 ×vehicle speed and 2 × vehicle weight requires... × the stopping power
53 / 59
53. Reaction time is the time it takes between
54 / 59
54. Most brake components operate best at around... and should not exceed...
55 / 59
55. What can reduce your danger zone?
56 / 59
56. Runaway lanes are:
57 / 59
57. When traveling downhill, your vehicle will speed up due to
58 / 59
58. Speed and Weight facts: 2 × vehicle speed requires... × the stopping power
59 / 59
59. Speed and Weight facts: 2 × vehicle weight requires... × the stopping power
Your score is
The average score is 79%
Restart quiz
