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
The safety catch for the fifth wheel locking lever must be __ for coupling to be complete
- Over the locking lever - 正确答案
- None of these answers are correct
- Straight up
- 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?
- The brakes and suspension systems of combination vehicles work best with a light load.
- Bobtail tractors can take longer to stop than a combination vehicle loaded to maximum gross weight - 正确答案
- Light vehicles need more braking power to stop than heavy ones
- 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
- Emergency - 正确答案
- Hydraulic
- Service
- 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:
- Tractor's air to dump into the trailer tank through the service line
- Air compressor to unload instead of pumping air
- none of these answers are correct
- 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:
- Tractor spring brake to lock up
- Trailer emergency brakes to come on - 正确答案
- Trailer tank pressure to be lost
- 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 )