CDL PRACTICE TEST (OK) - GENERAL KNOWLEDGE TEST
21.
On any upgrade, _________ – the more you will have to use lower gears to climb hills or mountains.
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the steeper the grade
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the longer the grade
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All of the above.
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22.
Which of the following statements about drugs is true?
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Use of drugs can lead to traffic accidents.
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Some "controlled substances" are allowed to reduce fatigue.
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All over-the-counter drugs are safe to use while on duty.
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23.
To use road speed to know when to switch gears you should:
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learn what speeds each gear is good for.
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learn the operating rpm range of your vehicle.
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watch your tachometer, and shift up when your engine reaches the top of the range.
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24.
Which of the following is not a braking system on a truck?
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Parking brake
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Steering brake
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Service brake
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25.
Why should you cover your cargo?
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To protect people from spilled cargo.
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To protect the cargo from weather.
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All of the above.
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26.
When you drive a tractor-trailer combination with ABS, you should:
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apply the trailer hand brake whe braking.
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pump the brakes.
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brake as you always have.
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27.
HAZMAT placards are:
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regulatory signs
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warning signs
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speed signs
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28.
When going down long, steep downgrades, you should:
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try not to use the brakes.
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only use the brakes.
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downshifting and then use the brakes.
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29.
Brake fade results from:
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excessive heat caused by using brakes too much.
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using brakes in cold weather.
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wet brakes.
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30.
How many reflective triangles/emergency reflectors should you carry?
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2
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3
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4
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