AIR BRAKES PRACTICE TEST - KENTUCKY
6.
When backing a trailer, turn the wheel right to make the cab go ________ and the trailer go ________.
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right; right
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left; right
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right; left
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left; left
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7.
To test the service brake:
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gently try to pull forward with the trailer parking brake on, then release the brake.
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push the brake pedal firmly while slowly moving backward.
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shift your transmission to a low gear, pump the brake pedal three times, then hold it down for five seconds.
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push the brake pedal firmly while going about 5 mph.
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8.
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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controls when the air storage tanks will pump air into the air compressor.
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stops the compressor from pumping air.
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All of the above.
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9.
If the low air pressure warning light comes on, you should:
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set the parking brake.
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stop immediately.
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call for help.
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continue to drive normally.
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10.
If the air compressor is belt-driven, you should check the air compressor drive belt before each trip. The belt should be:
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loose.
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cracked.
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worn.
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tight.
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