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2026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
Your emergency air line breaks or gets pulled apart while you are driving. the loss of pressure will cause the:
- Emergency trailer brakes to come on - 正确答案
- Air compressor to unload instead of pumping air
- Tractor's air to dump into the trailer tank through the service line
- none of these answers are correct
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。
When coupling, the proper position of the fifth wheel is:
- Level of the ground
- Tilted up toward the end the trailer
- Tilted down toward the front of the tractor
- Tilted down toward the end of the trailer - 正确答案
当车头连接时,牵引座( 第五轮 / fifth wheel )的正确位置应该是朝拖斗的方向,向下倾斜
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
- Front
- Back - 正确答案
- Middle section
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。
When you get ready to back under semitrailer you should line up:
- None of these answer are correct
- Directly in front of the trailer - 正确答案
- The kingpin to engage the driver's side locking jaw first
- The left rear outer dual wheel with the kingpin
当你准备好将车头倒车连接半挂车时,你应该尽量将车头与挂车直线对其
A tractor with a __ trailers requires the shortest amount of the stopping distance.
- Empty
- Lightly loaded
- None of these answers are correct
- Fully loaded - 正确答案
一部卡车拉满载货物的挂车需要最短的停止距离


