CDL PRACTICE TEST - GENERAL KNOWLEDGE (NORTH DAKOTA)
21.
HAZMAT placards are:
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optional signs
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speed signs
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warning signs
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regulatory signs
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22.
Drivers should watch out for black ice when the temperature is ______ freezing and the road looks ______.
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above; dry
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above; wet
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below; wet
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below; dry
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23.
Hydroplaning:
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never occurs at speeds below 40 mph.
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only occurs at extremely high speeds.
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only happens when tire pressure is higher than normal.
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can occur at speeds as low as 30 mph.
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24.
ABS:
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makes it easier to turn.
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allows the wheels to lock up.
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helps you avoid wheel lock up.
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makes it easier to break.
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25.
Loose cargo:
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can be a danger to others and yourself.
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could fall off your vehicle and cause traffic problems.
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could hurt or kill you during a quick stop.
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All of the above.
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26.
When a combination vehicle goes around a corner:
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the rear wheels of the trailer will never off-track.
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the front and rear wheels follow a different path.
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the driver must keep the rear of your vehicle far away from the curb.
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All of the above.
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27.
What is the most important hand signal you should agree on with a helper?
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Stop
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Turn right
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Keep backing
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Go forward
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28.
With brake drums, if brakes become too hot:
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the brakes will supply too much power to the drive wheels.
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the air compressor will kick on to cool the brakes.
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The brakes may stop working
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your ABS will malfunction.
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29.
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 on all the lights, turn off the stop lights, and turn off the left turn signal 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 the stop lights, turn on all the lights, and turn on the right turn signal lights.
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30.
You are inspecting your vehicle during a trip. What should you do?
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Use your senses to check for problems.
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Check critical items such as tires, brakes, and lights.
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Watch gauges for signs of trouble.
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All of the above.
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