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
A tractor with a __ trailers requires the shortest amount of the stopping distance.
- None of these answers are correct
- Lightly loaded
- Empty
- 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
Air brake equipped trailers made before 1975
- Usually need a glad hand converter
- Cannot be legally operated on interstate highways
- Often do not have spring brakes - 正确答案
- None of these answers are correct
1975年之前制造的配备气刹的拖斗通常没有弹簧刹车系统
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
- Emergency trailer brakes to come on - 正确答案
- none of these answers are correct
- Air compressor to unload instead of pumping air
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 connecting the glad hands, press the two seals with the coupler together at what degree to each other?
- 180 degree
- 90 degree - 正确答案
- 120 degree
- 45 degree
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 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
- Under the locking lever
- Straight up
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


