CRJ900的AC电源是：AC electrical power on the CRJ900 is:

115伏，400赫兹，单相。115 volt, 400 Hz, single phase

115伏，60赫兹，三相。115 volt, 60 HZ, three phase

110伏，400赫兹，三相。110 volt, 400 Hz, three phase

115伏，400赫兹，三相。115 volt, 400Hz, three phase

正确答案：D

飞机试题CRJ900题库练习

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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___.

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.