纽约州,加州以及其它州商业车驾照气刹理论模拟题复习

驾驶带有空气制动器的车辆需要获取气刹许可证。 在美国,要获得此认可证,申请人必须通过气刹原理考试。 考试由25道选择题组成。 每个问题有四个答案选择。 要通过,申请人必须正确回答至少20个问题。 大部分测试题来自纽约州商用机动车辆驾驶员手册。空气制动器许可证可与 A、B 或 C级的驾照一起使用。

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免费在线商业车驾照气刹理论模拟考试


Repeatedly partially releasing and pressing the brake pedal may result in:

  1. No change of brake air pressure
  2. None of these answers are correct
  3. A build up of brake air pressure
  4. A loss of brake air pressure - 正确答案

反复释放和踩下刹车踏板可能会导致刹车气压损失

Why drain water from compressed air tanks?

  1. Water low boiling point reduces braking power
  2. Water can freeze in cold weather and cause brake failure - 正确答案
  3. None of these answers are correct
  4. Water cools the compressor too much

你应该定期的排出压缩空气罐中的水。 因为水在寒冷的天气会结冰并导致刹车故障

Some air brake systems have an alcohol evaporator. What may happen if you don't keep the proper level of am alcohol?

  1. None of these answer are correct
  2. Ice may form on the brake drums and wear them out
  3. Ice may form in the air storage tank and cause a brake failure - 正确答案
  4. The S-cam may not take back when you release the brake pedal

一些气压刹车系统具有酒精蒸发器。 如果你没有保持适当的酒精,可能会在储气罐中形成冰块并导致刹车故障/失灵。

The modern air brake system combines three different systems. They are the service, the parking, and __ brakes.

  1. Emergency - 正确答案
  2. Foot
  3. Drum
  4. None of these answers are correct

现代的气压刹车系统结合了三种不同的系统。 它们是服务(行车),泊车和紧急刹车。

The use of brakes on a long and steep downgrade under normal conditions is only a supplement to:

  1. The use of the front brakes limiting valve
  2. None of these answers are correct
  3. Use of spring brakes
  4. The braking effect of the engine - 正确答案

在正常情况下,车辆在长时间下坡情况下,使用刹车器只是对发动机刹车效果的辅助

商业车驾照气刹理论模拟考试