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


Why should you drain water from compressed air tanks?

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

你应将水从压缩空气罐中排出,因为水在寒冷的天气中会结冰并导致刹车失灵。

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

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

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

If your truck has a properly functioning dual air brake system and minimum size air tanks the air pressure should build up from 85 to 100 psi within how many seconds?

  1. 30
  2. 45 - 正确答案
  3. 60
  4. 50

如果你的卡车配备有功能正常的双气制动系统和最小尺寸的气缸,气压应在45秒内从85 psi升至100 psi?

If you do not have automatic tank drains, how ofter should you drain compressed air storage tanks?

  1. Once a week
  2. After every four hours of service
  3. None of these answers are correct
  4. At the end of each day of driving - 正确答案

如果你驾驶的卡车上的压缩空气储存罐没有自动释法功能,则应在每天行驶结束时排空压缩空气储存罐

To test air service brakes you should:

  1. None of these answers are correct
  2. Brake slowly while slowly moving backward
  3. Brake firmly while slowly moving forward - 正确答案
  4. Stop the vehicle, brake in a low gear, depress the service brakes, and then gently pull against the brakes

要测试服务刹车系统,你应该在缓慢前进的同时牢牢踩住刹车

商业车驾照气刹理论模拟考试