ID CDL AIR BRAKES PRACTICE TEST
21.
In a vehicle with a dual air brake system:
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one system supplies air to the trailer.
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each system has its own air tanks.
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both systems typically operate the regular brakes on the rear axle.
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22.
Antilock brakes:
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decrease your stopping distance.
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let you drive faster.
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None of the above.
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23.
The ABS malfunction lamp on the instrument panel is:
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Red
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Orange
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Yellow
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24.
The most common type of brake is the:
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R-cam drum brake
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G-cam disc brake
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S-cam drum brake
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25.
The application pressure gauge:
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shows how much air pressure is being applied to the brakes.
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tells you how much pressure is in the air tanks.
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protects the tank and the rest of the system from too much pressure.
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