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


Air braking takes more time than hydraulic braking because:

  1. Air brakes require heavier return springs
  2. Air takes more time to flow through the lines than hydraulic fluid - 正确答案
  3. None of these answers are correct
  4. Air brakes use different brake drums

气刹比液压刹车需要更多时间,因为空气比液压油需要更多的时间流经管线

If you must make an emergency stop, you should brake so you:

  1. Use the full power of the brakes to lock them
  2. None of these answers are correct
  3. Use the hand brake before the brake pedal
  4. Can steer and so your vehicle stays in a straight line. - 正确答案

如果必须紧急停车,则应刹车以便转向,使车辆保持在一条直线上。

How should you check that your service brakes are working properly?

  1. Park on level ground, wait until normal air pressure is reached, release the parking brake and move forward slowly at about 5 mph. Then apply the brakes firmly using the brake pedal. - 正确答案
  2. Park on slight grade, drain off air pressure, set parking brake and check to to movement.
  3. None of these answers are correct
  4. Park on a level ground, chock the wheels, engage the parking brakes when you have the correct amount of air pressure to do so and shut the engine off.

检查服务刹车系统是否正常工作。 将车停在水平地面上,等到达到正常气压后,松开泊车刹车器并以约每小时5英里(5 MPH)的速度缓慢前进。 然后使用刹车踏板稳固地踩下刹车。

If you are driving down to the steep downgrade and you have reached the speed of 40 mph, you would apply the service brake until your speed dropped to below __ mph

  1. 25
  2. 35
  3. 40 - 正确答案
  4. 30

如果你从斜坡开下去并且速度已经达到40 mph(每小时英里),则可以使用行车(服务)刹车直到速度降至35 mph以下。注:下坡时正确使用刹车的方法 - 刹车直到你的速度比路面限制的速度低大约5 mph(每小时英里)为止。

The parking or emergency brake on a heavy vehicle can only be held in position by something that cannot leak away, like:

  1. Air pressure
  2. Spring pressure - 正确答案
  3. None of these answers are correct
  4. Hydraulic pressure

重型车辆上的泊车或紧急刹车器只能通过诸如弹簧压力之类不能泄漏的东西保持在原位

商业车驾照气刹理论模拟考试