AIR BRAKES CDL PRACTICE TEST - NORTH CAROLINA

11. Your mirrors should be adjusted so that:
more than half of the mirror shows the vehicle.
no part of the vehicle is visible in the mirror.
the rear of the vehicle is visible in the mirror.
a part of the vehicle is visible in the mirror.
12. Axle weight is:
the weight transmitted to the ground by one axle or one set of axles.
the weight of all the axles added together.
the maximum safe weight your tires can carry at a specified pressure.
the value specified by the manufacturer as the loaded weight of one axle.
13. In vehicles with air brakes, water and compressor oil in the bottom of the air tank:
should not be removed.
should be added regularly.
should be drained completely.
None of the above.
14. Which of the following is NOT a warning sign of fatigue?
Driving at the speed of the traffic
Heavy eyelids
Trouble remembering the last few miles driven
Frequent blinking
15. To test the service brake:
shift your transmission to a low gear, pump the brake pedal three times, then hold it down for five seconds.
gently try to pull forward with the trailer parking brake on, then release the brake.
push the brake pedal firmly while slowly moving backward.
push the brake pedal firmly while going about 5 mph.
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