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
What will happen if the air lines are crossed when you hook up to an old trailer
- none of these answers are correct
- If the trailer has no spring brakes, you could drive away but you wouldn't have trailer brakes - 正确答案
- The hand valve will apply the tractor brakes instead of the trailer brakes
- The brake lights will come on when the brake pedal is pressed
连接旧的拖斗时,如果服务刹车气管与拖斗刹车气管弄混了。 如果拖斗没有弹簧刹车器,你可以开车离开,但拖斗将没有刹车
After connecting the air lines but before backing under the trailer you should:
- Supply air to the trailer system, then pull out the air supply knob - 正确答案
- None of these answers are correct
- Make sure that the trailer brakes are off
- Walk around the rig to be sure that is is clear
在倒车拖车下方之前,连接服务刹车和拖斗气管之后,应先向拖斗刹车系统供气,然后拉出空气供应旋钮
Air brake equipped trailers made before 1975
- Cannot be legally operated on interstate highways
- None of these answers are correct
- Often do not have spring brakes - 正确答案
- Usually need a glad hand converter
1975年之前制造的配备气刹的拖斗通常没有弹簧刹车系统
A tractor with a __ trailers requires the shortest amount of the stopping distance.
- None of these answers are correct
- Fully loaded - 正确答案
- Lightly loaded
- Empty
一部卡车拉满载货物的挂车需要最短的停止距离
The hand valve should be used:
- only with a foot brake
- as a parking brake
- None of these answer are correct
- to test the trailer brakes - 正确答案
手动阀门只可以用于测试拖斗的刹车,不可以用于泊车停车


