Chapter 2: heavy vehicle braking
1 / 42
1. If the WEIGHT and SPEED on your vehicle is doubled stopping will require you to use?
2 / 42
2. The brakes, tires and suspension of a combination vehicle work best when:
3 / 42
3. Engine retarders work best at?
4 / 42
4. When driving through water you can test your brakes for safe operation condition by?
5 / 42
5. Drivers of buses, trucks and other large heavy vehicles should never be less than ......... behind the vehicle ahead at highway speeds.
6 / 42
6. If you must drive more slowly than the traffic flow you should:
7 / 42
7. If the WEIGHT on your vehicle is doubled,stopping will require you to use?
8 / 42
8. Stopping on icy roads requires:
9 / 42
9. Use tachometer to measure
10 / 42
10. What is the final factor that will determine if the vehicle will move?
11 / 42
11. If the speed on your vehicle is doubled, stopping will require you to use?
12 / 42
12. Runaway lanes are:
13 / 42
13. In normal stopping, the brake components heat up to about ....
14 / 42
14. If your brake fade while driving you should?
15 / 42
15. If you use the two second (or fifith second) rule or following distance and find that you reach out check point before your count is finished?
16 / 42
16. When stopping in an emergency with ABS brakes you should:
17 / 42
17. Speed and Weight facts: 2 × vehicle speed requires... × the stopping power
18 / 42
18. When driving through water you can test your brakes for safe operation condition by?
19 / 42
19. How does the generation of heat help stop the vehicle?
20 / 42
20. In ideal driving conditions, passenger cars and light trucks should be at least how many seconds behind the vehicle they are following?
21 / 42
21. A commercial driver should mount chains on their tires
22 / 42
22. When you see a potential hazard on the road your danger zone is reduced by?
23 / 42
23. When traveling downhill, your vehicle will speed up due to
24 / 42
24. Bald or defective tires may....
25 / 42
25. 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.
26 / 42
26. Brake fade occurs when
27 / 42
27. 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.
28 / 42
28. Which of the following increases the most when you go faster?
29 / 42
29. Anti-lock braking systems (ABS) are:
30 / 42
30. What can reduce your danger zone?
31 / 42
31. Total stopping time =
32 / 42
32. If you have to drive through water on the roadway, place a slight drag on the brakes to
33 / 42
33. To reduce the chance of loosing control of your vehichle when driving through down a steep hill?
34 / 42
34. Most brake components operate best at around... and should not exceed...
35 / 42
35. Speed and Weight facts: 2 ×vehicle speed and 2 × vehicle weight requires... × the stopping power
36 / 42
36. Speed and Weight facts: 2 × vehicle weight requires... × the stopping power
37 / 42
37. 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?
38 / 42
38. 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:
39 / 42
39. ... provide an auxiliary slowing effect and assist the main brake system to slow the vehicle.
40 / 42
40. If brake fades occur?
41 / 42
41. What's another name for engine retarders?
42 / 42
42. The final factor in stopping is in the contact between... through the tires.
Your score is
The average score is 78%
Restart quiz
