CDL GENERAL KNOWLEDGE TEST (RHODE ISLAND) - PRACTICE TEST
21.
If you are feeling drowsy, before driving you should:
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drink some coffee.
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wait at least 30 minutes.
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get some sleep.
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22.
Which of the following statements about driving in slippery conditions is NOT true?
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The roads are most slippery in the first half hour after it starts to rain.
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As the temperature rises to the point where ice begins to melt, the road becomes less slippery.
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When the temperature drops, bridges will freeze before the road will.
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23.
You should NOT use the parking brakes if:
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the brakes are very hot.
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the brakes are too dry.
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the brakes are cold.
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24.
The best way to test the trailer service brakes is to:
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accelerate to the maximum possible speed, then apply the trailer brakes fully.
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pull forward quickly, then apply the trailer brakes with your hand control.
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None of the above.
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25.
Federal, state, and local regulations for commercial vehicles:
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only apply to CMV's operated in interstate commerce.
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vary from place to place.
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do not apply to CMV's operated in intrastate commerce.
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26.
When driving in heavy rain:
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avoid driving through deep puddles or flowing water if possible.
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take curves at higher speeds and brake while in curves.
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drive alongside other vehicles if possible.
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27.
During a pre-trip inspection, when checking the power steering hoses, you should:
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look for broken or distorted coil springs.
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check for leaks.
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check that the brake chambers are not leaking.
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28.
When driving at night, if drivers of oncoming vehicles do not put their low beams on, you should:
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look directly at the headlights.
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look slightly to the right at a right lane or edge marking, until the vehicles pass.
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flash your high beams to remind the other drivers to use their low beams.
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29.
Which of the following is not part of the air brake system?
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Air storage tanks
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Air compressor
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Air filter
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30.
With a dual air brake system:
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each system has its own air tanks, hoses and lines.
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each system shares air tanks.
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each system shares the same lines and hoses.
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