CDL PRACTICE TEST - GENERAL KNOWLEDGE (ARKANSAS)
21.
Which of the following statements about backing heavy vehicles is true?
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You should avoid backing whenever you can.
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Back to the right side so that you can see better.
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The helper should stand where you cannot see the helper.
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Always back as quickly as possible.
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22.
On
a tractor-trailer equipped with a trailer brake hand
valve, the hand valve can be used to:
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prevent movement of cargo.
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hold compressed air.
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reduce the chance of the front wheels skidding.
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keep from rolling back.
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23.
When the spring brakes are on, you should never:
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push the brake pedal down.
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decrease your speed.
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upshift.
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change lanes.
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24.
Front brake limiting valves were used to:
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reduce exhaust emissions.
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reduce your speed so further braking or shifting is not required.
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prevent overheating of the front tires.
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reduce the chance of the front wheels skidding on slippery surfaces.
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25.
If a shipping paper describes both hazardous and non-hazardous products, the hazardous materials must be:
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listed at the bottom.
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identified by an "H" placed before the shipping description.
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entered first.
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written in a larger font.
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26.
If you are being tailgated, you should:
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open up room in front of you.
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make quick changes.
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increase your speed very gradually.
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turn on your taillights.
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27.
During the vehicle inspection, when checking the tires you should:
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ensure that valve caps are missing.
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check for the minimum tread depth (4/32 on all tires).
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ensure the middle of the tires is more worn than the outside.
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ensure that the tread is evenly worn.
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28.
To prevent drowsiness before a trip, you should:
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avoid medications that cause drowsiness.
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drive with the windows rolled down.
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avoid driving with a passenger.
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drink 2 cups of coffee.
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29.
Weight that is loaded so there is a high center of gravity:
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makes a vehicle easier to handle.
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causes greater chance of rollover.
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reduces the chance that the load will shift to the side or fall off.
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All of the above.
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30.
When a vehicle goes around a corner, the rear wheels:
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will lock up.
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will turn freely.
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follow the same path as the front wheels.
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follow a different path than the front wheels.
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