哪种情况会导致空气驱动发电机在飞行中自动放出？Which condition will cause the ADG to automatically deploy in flight?

失去所有的正常交流电源 loss of all normal AC generating sources

失去APU发电机和失去发电机1或2 Loss of APU GEN and loss of either GEN 1 or GEN2

失去交流通用汇流条1和2 Loss of AC UTIL BUS 1 and AC UTIL BUS 2

交流发电机1和2不可用 AC GEN 1and AC GEN 2 not available

正确答案：A

飞机试题CRJ900题库练习

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起飞和着陆的最大机场气压高度，最大操作高度是？Maximum airport pressure altitude for take-off and landing, and maximum operating altitude are?

CRJ900单空调组件操作的最大高度是：The maximum altitude for single pack operation in a CRJ 900 is:

最大负压差是：Maximum negative differential pressure control is:

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___.