CDL GENERAL KNOWLEDGE TEST (RI) - PRACTICE TEST
31.
In coming down a long, steep downgrade, which of the following is NOT a factor you should consider to select an appropriate safe speed?
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Steepness of the grade
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Road conditions
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Your schedule
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32.
Most heavy duty vehicles use ___ air brake systems for safety.
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single
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dual
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triple
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33.
Class 1 hazardous materials include:
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Flammable liquids
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Explosives
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Flammable solids
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34.
If driving a heavy vehicle, you should:
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stay in the right lane.
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stay in the left lane.
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try to pass other vehicles going uphill.
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35.
When driving on wet roads, you should reduce your speed by about:
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one-fifth.
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one-third.
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one-half.
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36.
Texting is:
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safer than talking on a cell phone.
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the most dangerous distraction.
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about as safe as adjusting the radio.
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37.
Drivers should adjust their mirrors:
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while driving.
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after driving.
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before driving.
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38.
Another name for front-end header boards is:
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head belt.
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headache racks.
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containerized racks.
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39.
If there is a fire and you are not sure what to use to put it out, you should:
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wait for firefighters.
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use a fire extinguisher.
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use water.
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40.
When crossing railroad tracks, you should:
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stop on the tracks.
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stay in your lane.
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shift gears while crossing the tracks.
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