AIR BRAKES CDL PRACTICE TEST - NORTH CAROLINA
11.
Your mirrors should be adjusted so that:
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more than half of the mirror shows the vehicle.
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no part of the vehicle is visible in the mirror.
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the rear of the vehicle is visible in the mirror.
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a part of the vehicle is visible in the mirror.
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12.
Axle weight is:
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the weight transmitted to the ground by one axle or one set of axles.
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the weight of all the axles added together.
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the maximum safe weight your tires can carry at a specified pressure.
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the value specified by the manufacturer as the loaded weight of one axle.
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13.
In vehicles with air brakes, water and compressor oil in the bottom of the air tank:
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should not be removed.
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should be added regularly.
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should be drained completely.
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None of the above.
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14.
Which of the following is NOT a warning sign of fatigue?
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Driving at the speed of the traffic
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Heavy eyelids
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Trouble remembering the last few miles driven
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Frequent blinking
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15.
To test the service brake:
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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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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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push the brake pedal firmly while going about 5 mph.
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