UT CDL AIR BRAKES PRACTICE TEST
16.
You are driving on a steep downgrade. If your safe speed is 35 mph, you should apply the brakes when your speed reaches:
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35 mph
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25 mph
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45 mph
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30 mph
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17.
If you must drive through a deep puddle you should:
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apply the brakes until your speed reaches 40 mph.
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start slowly and Speed up smoothly and gradually so the vehicle does not jerk.
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slow down and place transmission in a low gear.
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speed up to get through the puddle as quickly as possible.
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18.
Which of the following is a reason why air tanks must be drained?
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Your brakes may fail due to the water freezing.
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Your battery fluid may drain out.
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The governor may stop the compressor from pumping air.
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Your transmission fluid may drain out.
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19.
The space under a heavily loaded vehicle can be very small. This can cause problems:
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when crossing railroad tracks.
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on dirt roads.
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on unpaved yards.
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All of the above.
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20.
Older trailers do not have spring brakes. If the air supply leaks away:
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the ABS won't work properly.
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the trailer will stop normally.
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there will be no emergency brakes.
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All of the above.
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