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