ID CDL AIR BRAKES PRACTICE TEST
6.
Which of the following is not part of the air brake system?
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Air compressor
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Air storage tanks
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Air filter
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7.
If you must drive slowly, how should you alert following drivers?
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Flash your brake lights
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Use your emergency flashers if it is legal
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Turn on your taillights
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8.
Supply pressure gauges tell you:
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how much pressure is in the air tanks.
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how much air pressure you are applying to the brakes.
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when the air pressure in the tanks falls below 60 psi.
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9.
The heavier the vehicle:
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the more work the brakes must do to stop it.
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the higher the center of gravity will be.
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the less work the brakes must do to stop it.
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10.
The __________ keeps air from going out if the air compressor develops a leak.
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tractor protection valve
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one-way check valve
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emergency relay valve
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