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
When connecting the glad hands, press the two seals with the coupler together at what degree to each other?
- 45 degree
- 180 degree
- 120 degree
- 90 degree - 正确答案
当车头的刹车气管连接到拖斗时,应该将车头气管的密封橡皮圈以90度的角度,与拖斗的气管接收处的密封橡皮圈以90度的角度对齐
The tractor protection valve will close and the trailer emergency brakes will come on when there is a major leak in the __ brake line
- Hydraulic
- Service
- Emergency - 正确答案
- 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
When driving a set of doubles. it is necessary to close which shut-off valve in the last trailer
- None of these answer are correct
- Back - 正确答案
- Middle section
- Front
当你要驾驶一辆拉着双拖斗的卡车,在行驶前,必须确定关闭最后一个拖斗中的后向截止阀。
The fifth wheel locking lever is not locked after the jaws close around the kingpin. This means that:
- All these answers are true
- The trailer will not swivel on the fifth wheel.
- The parking lock is off and you may drive away
- The coupling is not right and should be fixed before driving the coupled unit - 正确答案
如果当卡车车头连接到拖斗后,车头的牵引座锁定杆未关闭,这意味着车头连接拖斗不正确,切勿在此情况未解决前上路。
To unlock the fifth wheel the locking lever should be placed in the ___ position
- Open - 正确答案
- Left
- Neutral
- Closed
要解锁牵引座(又称第五轮)与挂车脱离,锁定杆应该处于打开位置