NORTH DAKOTA CDL AIR BRAKES PRACTICE TEST
6.
When should you be particularly careful about high winds?
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When going downhill
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When driving in winter
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When emerging from a tunnel
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When driving at night
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7.
You should drain the air tanks completely. If water and oil collect in the air tanks:
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your brakes could fail.
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your brakes could become hard to press.
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your brakes could heat up.
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None of the above.
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8.
While driving, you should use your mirrors to:
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check the condition of the tires and cargo.
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know where other vehicles are around you.
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check where the rear of your vehicle is while you make turns.
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All of the above.
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9.
If your vehicle does not have automatic air tank drains, how often should you drain air tanks to remove moisture and oil?
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Every 4 hours.
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Once a week.
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At the end of each working day.
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At least once a month.
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10.
To use the controlled braking method in an emergency, you should:
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apply the brakes as hard as you can without locking the wheels.
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apply the brakes when the wheels lock up.
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pump the brake pedal 3 times.
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apply your brakes all the way, and release the brakes when the wheels lock up.
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