【单选题】
液压储压器预充压力是：___
A. A．3000PSI
B. B．1885PSI左右
C. C．低于3000PSI的任意值
D. D．没有必要预充
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答案
B
解析
暂无解析
相关试题
【单选题】
蓝系统电动泵什么时候工作？___
A. A．只需一台大发工作
B. B．只需蓝系统超控电门ON位。
C. C．蓝系统电动泵AUTO位，APU供电且前起减震支柱未压缩。
D. D．蓝系统超控电门ON位且一台大发工作。
【单选题】
以下说法正确的是：___
A. A．液压油箱加油前，必须使油箱卸压
B. B．电动开关货舱门时，PTU被抑制
C. C．发动机关断时，液压火警valve关闭。
D. D．手摇泵手柄在绿系统勤务面板
【单选题】
有关RAT正确的是：___
A. A．RAT在空中可收回
B. B．RAT在地面不能放出
C. C．飞机在空中，失去交流电源且速度大于100节时自动放出
D. D．只按HYDRATMANON电门不能放出
【单选题】
正常液压源由谁提供：___
A. A发动机驱动泵用于所有系统
B. B绿和黄系统发动机驱动泵，蓝系统电动泵，黄系统电动泵
C. C绿系统发动机驱动泵，蓝系统电动泵，黄系统电动泵
D. D绿和蓝系统发动机驱动泵，黄系统电动泵
【单选题】
黄系统包括：___
A. A一个发动机泵，一个电动泵，一个手摇泵
B. B一个发动机泵，两个电动泵
C. C一个发动机泵，一个手摇泵和冲压空气涡轮
D. D一个发动机泵，一个电动泵，一个空气驱动泵
【单选题】
如果蓝电动泵故障，当冲压空气涡轮人工接通按钮按下时：___
A. A蓝液压系统由冲压空气涡轮增压
B. B应急发电机供电
C. C蓝液压系统增压且应急发电机工作
D. D动力转换组件(PTU)向蓝系统供压
【单选题】
黄系统可由谁增压？___
A. A1号发动机液压泵
B. B2号发动机液压泵，或黄电动泵，或动力转换组件
C. C2号发动机液压泵，或黄电动泵，或冲压空气涡轮
D. D黄系统空气驱动泵
【单选题】
飞行中，冲压空气涡轮自动放出时：___
A. A蓝液压系统增压，但应急发动机不工作
B. B绿液压系统增压，且应急发电机工作
C. C蓝液压系统增压且应急发动机工作
D. D绿液压系统增压，但应急发动机不工作
【单选题】
地面蓝电动泵电门置AUTO位，蓝电动泵何时工作?___
A. A一个电瓶置于AUTO时
B. B地面电源接通时
C. C一台发动机工作或蓝泵超控按钮按下时
D. D此时已在工作
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