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 air brake lag distance at 55 mph on dry pavement adds about __ feet
- 12 feet
- 32 feet - 正确答案
- 20 feet
- 52 feet
在干燥路面上以55 MPH(英里每小时)的速度行驶时的空气刹车滞后距离增加了约32英尺
Air braking takes more time than hydraulic braking because:
- None of these answers are correct
- Air brakes require heavier return springs
- Air takes more time to flow through the lines than hydraulic fluid - 正确答案
- Air brakes use different brake drums
气刹比液压刹车需要更多时间,因为空气比液压油需要更多的时间流经管线
If your truck has a properly functioning dual air brake system and minimum size air tanks the air pressure should build up from 85 to 100 psi within how many seconds?
- 45 - 正确答案
- 30
- 60
- 50
如果你的卡车配备有功能正常的双气制动系统和最小尺寸的气缸,气压应在45秒内从85 psi升至100 psi?
Your truck or bus has a dual air brake system. If a low air pressure warning comes on for only one system, what should you do?
- Stop right away and safely park, Continue only after the system is fixed. - 正确答案
- Reduce your speed, and test the remaining system while under way.
- None of these answers are correct
- Reduce your speed and drive to the nearest garage for repairs.
你的卡车或客车具有双气压刹车系统。 如果仅一个系统出现低气压警告,则应立即在安全情况下停下来,仅在系统修复后才可以继续上路。
The safety valve is set automatically when pressure is:
- 125
- 100
- 50
- 150 - 正确答案
安全阀在气缸的压力为150 PSI时自动开启,自动关闭增压系统,防止过度增压。