WEST VIRGINIA CDL PRACTICE TEST - GENERAL KNOWLEDGE
21.
When backing a trailer, you should:
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try to position your vehicle so you can back in a straight line.
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avoid correcting the drift.
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never make pull-ups to reposition your vehicle.
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turn the steering wheel in the direction you want to go.
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22.
When using a fire extinguisher, you should stay:
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at whatever distance you think is safe.
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at least 10 feet away from the fire.
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as far away from the fire as possible.
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as close to the fire as possible, without getting burnt.
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23.
Skids happen whenever:
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tires lose their grip on the road.
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ABS is not working.
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the weight limit is exceeded.
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dual tires come in contact with each other.
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24.
When backing, if you are unsure you should:
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continue backing.
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get out of your vehicle and check your path.
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call your dispatcher.
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turn toward the passenger's side.
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25.
Strong winds can make it difficult to stay in your lane, especially when:
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driving at speeds below 40 mph.
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coming out of tunnels.
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driving alongside other vehicles.
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going into tunnels.
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26.
You should always back and turn toward the driver's side:
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so you can watch the rear of your vehicle by looking out the side window.
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unless you have someone to help you.
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unless it means having to go around the block first.
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All of the above.
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27.
In mountain driving, to select a safe speed you should:
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go 5 mph slower than the vehicle ahead.
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go slightly faster than the speed limit.
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select a speed that's not too fast for the weight of your vehicle and cargo, the length and steepness of the grade, and road and weather conditions.
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follow the vehicle in front of you.
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28.
Black ice:
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is thick enough that it makes the road look dry.
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is a thin layer that is clear enough that you can see the road underneath it.
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is thick enough that it makes the road look wet.
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None of the above.
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29.
To recognize when it's time to shift up to a higher gear, use:
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engine speed (rpm) and road signs.
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engine speed (rpm) and road speed (mph).
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engine sounds and road signs.
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road speed (mph) and engine oil temperature.
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30.
Anti-lock brakes:
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keep your brakes from locking up when you brake hard.
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reduce the perception distance.
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increase your stopping distance.
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help you stop faster.
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