纽约州,加州以及其它州商业车驾照拖挂组合理论模拟题复习

驾驶拖挂组合车辆可以成为您商业驾驶生涯中不可或缺的一部分。 不过,在达到这一点之前,您需要通过美国DMV的考试,证明您已经掌握了安全驾驶这些车辆所需的专业知识。 以下30个问题来自官方2025年美国商业车驾照手册,仅涵盖拖挂组合车辆,以帮助您准备此特定的DMV测试。 祝你在练习考试和真正考试的时候好运!

拖挂组合理论模拟考试排行榜

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免费在线商业车驾照拖挂组合理论模拟考试


The safety catch for the fifth wheel locking lever must be __ for coupling to be complete

  1. Over the locking lever - 正确答案
  2. None of these answers are correct
  3. Straight up
  4. Under the locking lever

以确保车头与拖斗正常连接,牵引座(第五轮)锁定杆的安全锁必须在锁定杆上方

Which of these statements is true?

  1. The brakes and suspension systems of combination vehicles work best with a light load.
  2. Bobtail tractors can take longer to stop than a combination vehicle loaded to maximum gross weight - 正确答案
  3. Light vehicles need more braking power to stop than heavy ones
  4. None of these answer are correct

短尾牵引车要比装载至最大毛重的混合卡车需要更长的时间停下来

The tractor protection valve will close and the trailer emergency brakes will come on when there is a major leak in the __ brake line

  1. Emergency - 正确答案
  2. Hydraulic
  3. Service
  4. Parking

当紧急刹车管道中发生重大泄漏时,车头的保护阀将关闭,拖斗的紧急刹车将开启

Your emergency air line breaks or gets pulled apart while you are driving. the loss of pressure will cause the:

  1. Tractor's air to dump into the trailer tank through the service line
  2. Air compressor to unload instead of pumping air
  3. none of these answers are correct
  4. Emergency trailer brakes to come on - 正确答案

行驶期间,紧急空气管线断裂或被拉断。 压力损失将导致拖斗的紧急刹车按钮弹出,导致拖斗紧急刹车。

You have a major leak in the service line and you put on the brakes. Service air will escape and cause the:

  1. Tractor spring brake to lock up
  2. Trailer emergency brakes to come on - 正确答案
  3. Trailer tank pressure to be lost
  4. None of these answer are correct

当你踩刹车时,卡车的服务刹车系统出现严重的漏气,这时服务刹车系统的气将逸出并导致挂车的紧急刹车系统开启 ( 紧急刹车按钮会弹出 )

商业车驾照拖挂组合理论模拟考试