CDL PRACTICE TEST - GENERAL KNOWLEDGE (NORTH CAROLINA)
21.
Most hydraulic brake failures occur for one of two reasons, one of which is:
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loss of hydraulic pressure.
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excessive downshifting.
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relying too much on the engine braking effect.
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driving in cold weather.
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22.
When driving, you should be alert for:
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people who are distracted.
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sleepy drivers late at night.
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drivers whose vision is blocked.
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All of the above.
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23.
When driving at night, if drivers of oncoming vehicles do not put their low beams on, you should:
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look slightly to the right at a right lane or edge marking, until the vehicles pass.
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flash your high beams to remind the other drivers to use their low beams.
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look directly at the headlights.
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pull off the road and stop.
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24.
Livestock:
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can move around in a trailer and cause unsafe handling.
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should never be carried on a trailer.
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should never be kept bunched together.
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should always be placed in the rear of the trailer.
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25.
When inspecting the cargo, make sure it is:
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piled up.
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secured properly for the first 50 miles after beginning a trip.
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not overloaded.
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All of the above.
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26.
How should you brake if your vehicle loses ABS?
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Brake as you always have.
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Step on and off the brake pedal several times
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Pump the brake repeatedly
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Stay off the Brake
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27.
Placards must be:
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readable from all 4 directions.
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in a diamond shape.
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turned upright on a point.
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All of the above.
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28.
_______ is the distance your vehicle travels, in ideal conditions, from the time you see a hazard until your brain recognizes it.
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Reaction distance
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Perception distance
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Braking distance
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Total stopping distance
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29.
When backing a trailer, you should turn the steering wheel to the right to make the trailer go left (or vice versa). Once the trailer starts to turn, you should:
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keep backing up.
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turn the wheel more in the direction you want to go.
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turn the wheel the other way to follow the trailer.
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None of the above.
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30.
If you are driving toward a traffic light that's been green for a long time, you should:
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increase your speed to get through the intersection before the traffic light changes to red.
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maintain your current speed.
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brake as quickly as possible.
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start slowing down and be ready to stop.
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