RI CDL AIR BRAKES PRACTICE TEST

16. To check slack adjusters on S-cam brakes, you should:
use gloves and pull hard on each slack adjuster you can reach.
press the brake pedal and listen for any strange noises.
All of the above.
17. When backing, you should:
back quickly.
use the mirrors on both sides.
only use mirror on the driver's side.
18. When the low air pressure warning light and buzzer first come on, you should:
speed up to restore pressure.
downshift and slow down.
bring the vehicle to a safe stop right away.
19. To check the slack adjusters on S-cam brakes, you should:
release the parking brake valve and begin reducing the air pressure by stepping on and off the brake pedal.
park on level ground and fan off the air pressure by rapidly applying and releasing the foot brake.
park on level ground, chock the wheels and release the parking brakes, then use gloves and pull hard on each slack adjuster that you can reach.
20. When a tire fails, you must:
stay off the brake.
hold the steering wheel firmly.
All of the above.
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