所有的雷暴都可能隐藏有危害性的湍流，较严重的湍流可能会对飞机造成损害。即使没有冰击雹击电击，建议也不要在雷暴的砧状云下方飞过。请问为什么？

APU电瓶输出电压为：The output voltage of APU battery is:

失去所有交流电源。记忆项目： Loss of All AC Power. Immediate action(s)：

当其它电源丢失时，ADG提供115V，400赫兹，3相，（ ）KVA 的AC电源供应急使用。The ADG supplies 115-volt, 400-Hz, and 3-phase AC power at（ ）KVA for emergency use when all other sources have been lost.

飞行中，如果所有的发电机失效且ADG不工作，仅有电瓶电源，飞机将在大约（ ）分钟后断电。In flight, if all generators fail and the ADG is inoperative, only battery power available, aircraft will lose electricity supply approximately ( ) min later.

(多项选择): DC EMER BUS向下列哪些部件供电？（multiple-choice）: Which of the following components receive power from DC EMER BUS?

如果IDG在空中脱开，在下列哪种情况下可以重置IDG？If IDG was disconnected in flight, under which of the following conditions can IDG be reset?

下列属于整体驱动发电机（IDG）组成部件的是：Which of the following is component of IDG?

电瓶汇流条和 APU 电瓶直接汇流条供电给（ ）。Both the BATT BUS and the APU BATT DIR BUS feed the（ ）.

判断正误True or false：在地面时，如果飞机由外接 AC 电源供电，当接通相应的 APU 或 IDG 时，外接电源将继续给飞机供电。On the ground, if the airplane is powered by external AC power at first, when either the APU or an IDG is brought on line, the external AC will continue supply power for aircraft.

判断正误True or false：“PWR TXFR OVERRIDE（电源转换超控）” 电门位于中央操纵台底部的ADG控制面板。PWR TXFR OVERRIDE pushbutton is located on the ADG control panel, at the base of center console.