纽约州,加州以及其它州商业车驾照气刹理论模拟题复习
驾驶带有空气制动器的车辆需要获取气刹许可证。 在美国,要获得此认可证,申请人必须通过气刹原理考试。 考试由25道选择题组成。 每个问题有四个答案选择。 要通过,申请人必须正确回答至少20个问题。 大部分测试题来自纽约州商用机动车辆驾驶员手册。空气制动器许可证可与 A、B 或 C级的驾照一起使用。
气刹理论模拟考试排行榜
The safety valve discharges automatically at the pressure of:
- 120
- 100
- 50
- 150 - 正确答案
安全阀在150 PSI的压力下自动排放
The most common type of foundation brake found on heavy vehicles is the:
- Disk
- Wedge drum
- S-cam drum - 正确答案
- None of these answers are correct
重型车辆上最常见的基础刹车器是S型凸轮鼓
The parking or emergency brake on a heavy vehicle can only be held in position by something that cannot leak away, like:
- None of these answers are correct
- Air pressure
- Spring pressure - 正确答案
- Hydraulic pressure
重型车辆上的泊车或紧急刹车器只能通过诸如弹簧压力之类不能泄漏的东西保持在原位
The use of brakes on a long and steep downgrade under normal conditions is only a supplement to:
- None of these answers are correct
- The use of the front brakes limiting valve
- Use of spring brakes
- The braking effect of the engine - 正确答案
在正常情况下,车辆在长时间下坡情况下,使用刹车器只是对发动机刹车效果的辅助
If you do not have automatic tank drains, how ofter should you drain compressed air storage tanks?
- At the end of each day of driving - 正确答案
- Once a week
- None of these answers are correct
- After every four hours of service
如果你驾驶的卡车上的压缩空气储存罐没有自动释法功能,则应在每天行驶结束时排空压缩空气储存罐