【单选题】
油箱之间的人工串油，在打开了交输valve后，应该如何操作？___
A. A.只要打开抽油valve和被串油箱的燃油泵
B. B.只要打开加油valve和被串油箱的燃油泵
C. C.必须打开加油valve、抽油valve和被串油箱的燃油泵。
D. D.使用加油车进行串油
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答案
B
解析
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在A320飞机上，下面哪个部件是燃油系统控制IDG滑油冷却？___
A. A.FRV（燃油回油valve）
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当内油箱探测到一个低油面信号时___
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D.
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当中央油箱供油时机翼油箱燃油泵是否工作？___
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何时E/W显示：FUEL：AUTOFEEDFAULT：___
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B. 当左或右机翼油箱油量多于5000KG而中央油箱油量少于250KG；
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D.
【单选题】
燃油再循环冷却系统中的回油valve何时关闭？___
A. 当发动机滑油温度高于93℃、发动机处于低燃油流量状态时；
B. 当内油箱油位到达满油位，中央油箱燃油泵停止工作时；
C. 当通气油箱内的溢流传感器感受到溢流信号时。
D.
【单选题】
如FQIC的一个通道故障会怎样？___
A. 一半油量指示数据不可用；
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D.
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如果在地面发动机起动一分钟后放出缝翼，而此时中央油箱有油，模式选择电门在AUTO位，则___
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B. 中央油箱燃油泵停止运转；
C. 机翼油箱燃油泵停止运转。
D.
【单选题】
下面关于油箱通风保护器的功用的说法不正确的是：___
A. 用于防止地面起火时点燃油箱内的燃油；
B. 用于空气自由出入，但不能防止结冰；
C. 当大量燃油进入通气油箱时可通过通风保护器流到机外。
D.
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