CDL AIR BRAKES PRACTICE TEST - ALABAMA

16. Spring brakes:
apply when air pressure leaves the brake chamber and release when air pressure builds up in the chamber.
are not designed to work in an emergency when your service brakes fail.
are air applied like service brakes.
All of the above.
17. Distracted driving may be caused by _________ while driving.
maintaining constant speed
listening to music
eating
All of the above.
18. To brake in a way that will keep your vehicle in a straight line and allow you to turn if it becomes necessary, you can use:
the "controlled braking" method or the "stab braking" method.
the "controlled braking" method.
the "stab braking" method.
None of the above.
19. When you push the brake pedal down, air brakes work:
after about 15 seconds.
immediately.
only when ABS is working.
after a short delay.
20. Emergency brakes and parking brakes must be held on by:
hydraulic pressure.
mechanical force.
air pressure.
All of the above.
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