【单选题】
在加油时，如果高油位传感器故障，怎样知道油箱燃油已加满（）___
A. 加油自动停
B. 有警告声音
C. 红灯亮
D. 有燃油从通气油箱流出
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答案
D
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【单选题】
在正常情况下，飞机燃油使用的顺序是（）___
A. 中央油箱→内侧油箱→外侧油箱
B. 中央油箱→外侧油箱→内侧油箱
C. 外侧油箱→内侧油箱→中央油箱
D. 内侧油箱→外侧油箱→中央油箱
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发动机低压valve由谁关闭___
A. 发动机防火按钮或方式选择按钮设在人工
B. 发动机防火按钮或中央油箱传输valve控制逻辑
C. 发动机防火按钮或发动机主电门
D. 以上都不对
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PTU什么时候工作？___
A. A．只能在地面
B. B．PTU电门在AUTO位，且绿，黄系统压差大于500PSI时工作，第一台发动机起动时抑制
C. C．PTU电门在AUTO位，只要绿系统或黄系统有压力则一直工作
D. D．蓝系统工作时PTU被抑制
【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
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