VIRGINIA CDL AIR BRAKES PRACTICE TEST
21.
When using a fire extinguisher, you should stay:
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as far away from the fire as possible.
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at least 10 feet away from the fire.
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as close to the fire as possible, without getting burnt.
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22.
The air compressor is connected to:
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the engine.
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the transmission.
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the radiator.
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23.
Before driving a vehicle with a dual air brake system, you should allow time for the air compressor to build up a minimum of ____ pressure in both the primary and secondary systems.
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150 psi
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50 psi
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100 psi
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24.
Some air brake systems have an alcohol evaporator. Checking the alcohol container and filling it up as necessary:
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helps keep the engine cool, as well as lubricating it.
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helps you avoid wheel lock up.
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reduces the risk of ice in air brake valves during cold weather.
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25.
If your vehicle catches fire, you should pull over:
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near trees.
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at a service station.
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in an open area.
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