56. When brakes are applied the brake shoes will align to press against the:
Brake drum or disc.
57. Why should you drain water from compressed air tanks?
Water can freeze in cold weather and cause brake failure.
58. If you must make an emergency stop, you should brake so you:
Can steer and so your vehicle stays in a straight line.
59. The supply pressure gauge shows how much pressure:
Is in the air tanks.
60. The supply pressure gauge shows how much pressure:
Is in the air tanks.