ID CDL AIR BRAKES PRACTICE TEST

16. The air brake lag distance at 55 mph on dry pavement adds about:
32 feet.
75 feet.
60 feet.
17. ABS malfunction lamps are located:
on the instrument panel.
under the hood.
on the driver'door.
18. Distracted driving may be caused by _________ while driving.
maintaining constant speed
eating
listening to music
19. You supply air to the trailer brake system by:
plugging the electrical cord into the trailer.
connecting the tractor service air line to the trailer service glad hand.
pushing in the trailer air supply knob.
20. In vehicles with air brakes, the air compressor governor:
controls when the air compressor will pump air into the air storage tanks.
controls how much air the air compressor will pump into the air storage tanks.
controls when the air storage tanks will pump air into the air compressor.
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