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2024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
After connecting the air lines but before backing under the trailer you should:
- Make sure that the trailer brakes are off
- Supply air to the trailer system, then pull out the air supply knob - 正确答案
- None of these answers are correct
- 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
There are two things that a driver can do to prevent a rollover. They are: (1) keep the cargo as close to the ground as possible, and (2):
- none of these answers are correct
- Keep both hands firmly on the steering wheel
- Make sure that the brakes are properly adjusted
- Go slow around turns - 正确答案
驾驶员可以做两件事来防止拖斗在行驶途中翻了。 它们是:(1)保持货物尽可能靠近地面,(2)转弯时要慢一些
The air leakage rate for a combination vehicle (engine off, brakes on) should be less than __ psi per minute
- 1
- 4 - 正确答案
- 3
- 2
混合动力车辆(熄火,刹车打开)的漏气速率应小于每分钟 4 psi
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。
The hand valve should be used:
- None of these answer are correct
- as a parking brake
- only with a foot brake
- 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