MD CDL AIR BRAKES PRACTICE TEST
6.
If you must stop on a one-way or divided highway, place your warning devices:
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50 feet, 100 feet, and 150 feet toward the approaching traffic.
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10 feet, 50 feet, and 150 feet toward the approaching traffic.
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10 feet, 100 feet, and 200 feet toward the approaching traffic.
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100 feet, 200 feet, and 300 feet toward the approaching traffic.
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7.
The best way to recognize that your trailer has started to skid is:
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by opening the window and feeling the front of the mirror.
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by recognizing tire failure.
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by feeling the brakes come on.
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by seeing it in your mirrors.
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8.
Spring brakes:
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are not designed to work in an emergency when your service brakes fail.
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are air applied like service brakes.
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apply when air pressure leaves the brake chamber and release when air pressure builds up in the chamber.
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All of the above.
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9.
After a tire has been changed, the driver should stop a short while later to:
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check the tightness of the nuts.
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check tread separation.
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decrease tire pressure.
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deflate the tire to 10 psi.
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10.
The air compressor is connected to:
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the transmission.
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the suspension system.
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the radiator.
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the engine.
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