GENERAL KNOWLEDGE CDL TEST CALIFORNIA - PRACTICE TEST
31.
The only way to stop a front-wheel skid is to:
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supply more power to the drive wheels.
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let the vehicle slow down.
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countersteer.
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32.
When using a turn signal, which of the following is NOT true?
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You should signal early.
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You should turn off your turn signal after you've turned.
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You should cancel the signal before completing the turn.
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33.
How can you tell if your vehicle is equipped with ABS?
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Trailers will have yellow ABS malfunction lamps on the left side.
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Look for yellow ABS malfunction lamps on the instrument panel.
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All of the above.
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34.
In a vehicle with a dual air brake system:
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each system has its own air tanks.
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one system supplies air to the trailer.
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both systems typically operate the regular brakes on the rear axle.
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35.
Front-end header boards:
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can cause your vehicle to hydroplane.
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protect you from your cargo in case of an accident.
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protect your from glare and eyestrain.
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36.
Which of the following is a common cause of fire?
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Under-inflated tires and duals that touch.
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Short circuits due to loose connections.
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All of the above.
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37.
_____ is a thin layer of ice that forms on road surfaces.
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Grey ice
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Black ice
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White ice
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38.
The most important hand signal you should agree on with a helper is:
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Keep backing
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Stop
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Go
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39.
Name two causes of tire fires.
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Driver smoking and poor ventilation.
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Under-inflated tires and dual tires that touch
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Excessive braking
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40.
When changing lanes, you should:
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turn sharply.
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do it slowly, so a driver you did not see may have a chance to honk their horn.
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do it quickly so other vehicles won't get into the lane.
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