CDL Air Brakes Practice Test - Oregon
21.
If your truck has automatic transmission, you should downshift:
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when going down grades.
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when you need to accelerate.
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whenever road conditions allow.
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after entering a curve.
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22.
If you are being tailgated, you should:
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increase your following distance.
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avoid quick changes.
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avoid tricks like turning on your taillights or flashing your brake lights.
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All of the above.
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23.
Brake fade results from:
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excessive use of the service brakes.
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excessive smoke.
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excessive speeding.
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excessive wear.
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24.
If the air pressure gets too low:
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you should set the parking brake.
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ABS will help maintain vehicle control.
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the brakes will not work.
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the brakes will lock up.
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25.
To prevent rollover, you should:
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keep the cargo as close to the ground as possible.
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put the lightest parts of the cargo under the heaviest parts.
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place the cargo near the rear of the trailer.
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place the cargo near the front of the trailer.
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