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
Why should you drain water from compressed air tanks?
- Water low boiling point reduces braking power
- Water cools the compressor too much
- Water can freeze in cold weather and cause brake failure. - 正确答案
- None of these answers are correct
你应将水从压缩空气罐中排出,因为水在寒冷的天气中会结冰并导致刹车失灵。
The S-cam
- Force the brake shoes against the inside of the brake drum - 正确答案
- None of these answers are correct
- Controls the flow air to each of the brake chambers.
- Pulls the brake shoes away from the drum and allow the wheels to roll freely
S凸轮强制将刹车片压向刹车鼓内部,从而起到刹车作用。
To test air service brakes you should:
- None of these answers are correct
- Stop the vehicle, brake in a low gear, depress the service brakes, and then gently pull against the brakes
- Brake firmly while slowly moving forward - 正确答案
- Brake slowly while slowly moving backward
要测试服务刹车系统,你应该在缓慢前进的同时牢牢踩住刹车
Air braking takes more time than hydraulic braking because:
- None of these answers are correct
- Air takes more time to flow through the lines than hydraulic fluid - 正确答案
- Air brakes require heavier return springs
- 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
Repeatedly partially releasing and pressing the brake pedal may result in:
- None of these answers are correct
- No change of brake air pressure
- A loss of brake air pressure - 正确答案
- A build up of brake air pressure
反复释放和踩下刹车踏板可能会导致刹车气压损失


