DC CDL AIR BRAKES PRACTICE TEST
21.
Brake fade results from:
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excessive wear.
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excessive smoke.
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excessive speeding.
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excessive use of the service brakes.
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22.
With air brake vehicles, you should use the parking brakes:
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only if your vehicle is equipped with ABS.
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as little as possible.
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whenever you leave the vehicle unattended.
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only during the vehicle inspection test.
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23.
Which of the following is NOT part of the drum brake?
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Axle
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Brake drum
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Return spring
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Safety valve
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24.
A low air pressure warning signal is required on:
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all vehicles with air brakes.
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all vehicles with air brakes built after 2005.
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all vehicles with air brakes built after 2009.
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Warning signals are optional.
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25.
ABS:
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allows you to brake harder.
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replaces your normal brakes.
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should only be used on dry roads.
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is an addition to your normal brakes.
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