NORTH DAKOTA CDL AIR BRAKES PRACTICE TEST

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