AIR BRAKES PRACTICE TEST - NEW YORK
21.
Some air brake systems have an alcohol evaporator. Checking the alcohol container and filling it up as necessary:
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helps you avoid wheel lock up.
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reduces the risk of having an accident due to drowsy driving.
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helps keep the engine cool, as well as lubricating it.
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reduces the risk of ice in air brake valves during cold weather.
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22.
The air compressor governor:
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allows the compressor to start pumping air when the tank pressure rises to the "cut-out" pressure.
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stops the compressor from pumping air.
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controls when the air storage tanks will pump air into the air compressor.
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All of the above.
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23.
The safety relief valve is usually set to open at ____ psi.
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150
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100
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50
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75
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24.
After supplying air to the trailer brake system, you should check the brake system for crossed air lines by:
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applying and releasing the trailer brakes and listening for the sound of trailer brakes.
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checking the air brake system pressure gauge for signs of major air loss.
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shutting the engine off so you can hear the brakes.
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All of the above.
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25.
Empty trucks have the best braking. True or False?
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True.
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It depends on the cargo.
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It depends on the truck.
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False.
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