ND CDL Air Brakes Practice Test
11.
An anti-lock braking system (ABS):
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should help you steer around an obstacle while braking.
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helps you avoid wheel lock up.
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helps you avoid skids caused by over braking.
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All of the above.
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12.
Air tank drains:
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protect the tanks and the rest of the system from too much pressure.
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are used to move air to the brakes.
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are used to remove water and oil from the air tanks.
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should not be used in wet weather.
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13.
The wig wag is:
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a noise reduction mechanism.
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a low air pressure warning system.
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when your tires might grab unexpectedly and you lose control of your vehicle.
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a type of rollover.
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14.
When driving on slippery roads, you should NOT:
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go slowly.
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try to anticipate stops early.
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watch far enough ahead to keep a steady speed.
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use the engine brake.
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15.
If stopped on a hill, how can you start moving without rolling back?
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Release the parking brake before you have applied enough engine power to keep from rolling back.
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Press on the gas pedal, even if you have to roll back a little.
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Partly engage the clutch before you take your right foot off the brake, put on the parking brake if necessary.
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None of the above.
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