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Chapter 2: heavy vehicle braking

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1. In ideal driving conditions, passenger cars and light trucks should be at least how many seconds behind the vehicle they are following?

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2. Most brake components operate best at around... and should not exceed...

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3. To prevent your vehicle from jerking back after it is fully stopped, you should:

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4. Reaction time is the time it takes between

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5. When traveling downhill, your vehicle will speed up due to

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6. Total stopping time =

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7. Stopping on icy roads requires:

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8. A rotor is part of which of the following brake system?

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9. Speed and Weight facts:
2 × vehicle weight requires... × the stopping power

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10. What is the final factor that will determine if the vehicle will move?

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11. To dry out your brakes during extremely wet conditions you should:

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12. An engine brake retarder is:

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13. In normal stopping, the brake components heat up to about ....

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14. In normal stopping, the brake components heat up to about ....

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15. Drivers of buses, trucks and other large heavy vehicles should never be less than ......... behind the vehicle ahead at highway speeds.

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16. Truck drivers should:

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17. When stopping in an emergency with ABS brakes you should:

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18. Anti-lock braking systems (ABS) are:

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19. A rotor is part of which of the following brake system?

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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.

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21. When brake fade occurs:

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22. Using light brake pressure on an icy road will:

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23. 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.

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24. Braking forcefully when driving a combination-unit vehicle on slippery roads may cause:

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25. 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:

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26. Total stopping time:

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27. Anti-lock braking systems (ABS) are:

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28. Brakes convert the energy of motion back into what?

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29. Bald or defective tires may....

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30. Speed and Weight facts:
2 ×vehicle speed and 2 × vehicle weight requires... × the stopping power

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31. A commercial driver should mount chains on their tires

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32. 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?

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33. To ensure a smooth, controlled stop every time;

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34. 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?

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35. Reaction time:

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36. ... provide an auxiliary slowing effect and assist the main brake system to slow the vehicle.

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37. Brake fade occurs when

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38. The average driver's reaction time is about....

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39. The brakes, tires and suspension of a combination vehicle work best when:

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40. What should drivers continuously do if the danger zone becomes occupied?

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41. What do retarders do for the vehicle?

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42. Which sentence is correct?

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43. Does ABS allow you stop sooner?

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44. What's another name for engine retarders?

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45. Which of the following increases the most when you go faster?

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46. The final factor in stopping is in the contact between... through the tires.

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47. The most common air brake system defect found is?

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48. If you have to drive through water on the roadway, place a slight drag on the brakes to

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49. Other than vehicle weight and speed, what is another factor that affects stopping distances?

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50. Speed and Weight facts:
2 × vehicle speed requires... × the stopping power

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51. What can reduce your danger zone?

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52. Engine retarders work best at?

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53. Runaway lanes are:

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54. How does the generation of heat help stop the vehicle?

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55. If you must drive more slowly than the traffic flow you should:

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56. When traveling down a steep hill, you should:

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57. To stop safely,

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58. Revolutions per minute, or R.P.M., are:

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59. When you see a problem a head while driving

Your score is

The average score is 79%

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