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
Repeatedly partially releasing and pressing the brake pedal may result in:
- No change of brake air pressure
- None of these answers are correct
- A build up of brake air pressure
- A loss of brake air pressure - 正确答案
反复释放和踩下刹车踏板可能会导致刹车气压损失
Why drain water from compressed air tanks?
- Water low boiling point reduces braking power
- Water can freeze in cold weather and cause brake failure - 正确答案
- None of these answers are correct
- Water cools the compressor too much
你应该定期的排出压缩空气罐中的水。 因为水在寒冷的天气会结冰并导致刹车故障
Some air brake systems have an alcohol evaporator. What may happen if you don't keep the proper level of am alcohol?
- None of these answer are correct
- Ice may form on the brake drums and wear them out
- Ice may form in the air storage tank and cause a brake failure - 正确答案
- The S-cam may not take back when you release the brake pedal
一些气压刹车系统具有酒精蒸发器。 如果你没有保持适当的酒精,可能会在储气罐中形成冰块并导致刹车故障/失灵。
The modern air brake system combines three different systems. They are the service, the parking, and __ brakes.
- Emergency - 正确答案
- Foot
- Drum
- None of these answers are correct
现代的气压刹车系统结合了三种不同的系统。 它们是服务(行车),泊车和紧急刹车。
The use of brakes on a long and steep downgrade under normal conditions is only a supplement to:
- The use of the front brakes limiting valve
- None of these answers are correct
- 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