CDL PRACTICE TEST (NE) - GENERAL KNOWLEDGE TEST
31.
If you've been drinking alcohol, only ____ will sober you up.
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exercise
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time
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black coffee
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a cold shower
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32.
When driving, you:
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should always use turn signals to tell other drivers your intentions.
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should not use turn signals when the road is empty.
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should only use turn signals if there is a vehicle behind you.
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should carefully evaluate road and traffic conditions to decide if you should use turn signals.
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33.
Key suspension system parts include:
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Lock rings
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Bearing plates
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Tie rod
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All of the above.
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34.
Engine oil pressure should come up to normal within _________ after the engine is started.
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five minutes
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ten minutes
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two minutes
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seconds
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35.
While crossing railroad tracks, you should:
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not shift gears.
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shift down.
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shift up.
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stop, then look and listen for the train.
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36.
The Johnson bar is a valve that:
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keeps air from going out if the air compressor develops a leak.
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works the trailer brakes.
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reduces the braking pressure to a safe level.
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is installed in the first tank the air compressor pumps air to.
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37.
To check the signal lights, do the following:
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Turn off all the lights, turn on the right turn signal lights, and turn on the stop lights.
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Turn off all the lights, turn on the stop lights, and turn on the left turn signal lights.
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Turn on all the lights, turn off the stop lights, and turn off the left turn signal lights.
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Turn on the stop lights, turn on all the lights, and turn on the right turn signal lights.
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38.
ABS:
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improves your visibility at night.
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helps you increase your following distance.
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does not decrease your stopping distance.
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helps you increase your average speed.
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39.
The tractor protection valve:
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keeps your wheels from locking up when you brake hard.
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prevents the trailer from being accidentally released.
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keeps air from going out if the air compressor develops a leak.
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keeps air in the brake system should the trailer develop a bad leak.
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40.
To avoid distractions while driving, you should:
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try to engage in complex conversations with the other occupants.
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smoke, eat, and drink only when the road is straight.
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adjust vehicle controls and mirrors prior to driving.
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use your phone only when there is no traffic around you.
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