ND CDL Air Brakes Practice Test
6.
Why must air tanks be drained?
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There might not be enough antifreeze in the system.
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The alcohol evaporator might stop working.
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The water can freeze in cold weather and cause brake failure.
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Your transmission fluid may drain out.
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7.
If the air pressure gets too low:
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the brakes will not work.
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the brakes will lock up.
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ABS will help maintain vehicle control.
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you should set the parking brake.
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8.
Radial and bias-ply tires:
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should be used together only when driving in packed snow.
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should be used together.
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should be used together only during bad weather.
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should not be used together.
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9.
To control your speed on a downgrade, you should:
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coast in neutral.
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fully apply the brakes.
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use engine braking.
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use controlled braking.
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10.
To prevent rollover, you should:
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put the lightest parts of the cargo under the heaviest parts.
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place the cargo near the front of the trailer.
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place the cargo near the rear of the trailer.
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keep the cargo as close to the ground as possible.
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