GCU会使发电机从电路脱离当：A GCU will remove a generator from the circuit when:

电压超过规定范围。Voltage is outside of specifications.

频率超出规定范围。Frequency is out of specifications.

探测到过大电流。Excessive current is detected.

以上全部。All of the above.

正确答案：D

飞机试题CRJ900题库练习

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判断正误True or False：打开飞机任一舱门前，必须确认飞机完全释压。The airplane must be completely depressurized prior to opening any of the airplane doors.

地面机动操作过程中，压差不得超过( ).During ground maneuvering, the pressure differential must not exceed ( ).

CRJ900经批准的起飞和着陆最低外界温度限制为___。For CRJ900，the certified minimum ambient temperature for takeoff and landing is___.

CRJ900飞机的最大无燃油重量是（）kg。The maximum ZFW weight for CRJ900 aircraft is ( )kg.

CRJ900飞机最大落地结构重量限制是___?The Structural weight limitation forlandingof CRJ900 is___.

CRJ900经批准的起飞和着陆最高外界温度限制为___。For CRJ900，the certified maximum ambient temperature for takeoff and landing is___.

CRJ900飞机最大起飞结构重量限制是___?The Structural weight limitation fortakeoff of CRJ900 is___.

进行喷洒除防冰液时不需要关闭空调。We don’t need to close the pack when spraying anti- icing fluid.

当出现结冰警戒信息ICE，如果目视无结冰可以不开防冰。When there is an ICE message, if there is no ice by visual, we don’t need to use anti-ice.

当使用了II类，III类或IV类防冰液后（）接通机翼防冰When II III or IV anti-icing fluid is used, () turn on the wing anti-ice