NJ CDL AIR BRAKES PRACTICE TEST
6.
Which of the following statements is true?
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Carrying a properly charged and rated fire extinguisher will help prevent fires.
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Poor cargo ventilation is a common cause of fire.
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Under-inflated tires will NOT cause a vehicle fire.
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There is no way that short circuits due to damaged insulation can cause a vehicle fire.
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7.
By pushing the trailer air supply control knob in, you:
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keeps air in the tractor or truck brake system.
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shut the air off and put on the trailer emergency brakes.
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supply the tires with air.
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supply the trailer with air.
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8.
The total stopping distance for vehicles with air brake systems is made up of __ different factors.
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4
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5
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2
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3
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9.
During a trip you should check:
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temperature gauges.
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pressure gauges.
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mirrors.
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All of the above.
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10.
The air compressor is connected to:
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the radiator.
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the transmission.
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the suspension system.
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the engine.
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