Each ground service bus receives power in one of these two ways 1、 The AC transfer bus on that side has Power .2、 The ground service switch on the forward attendant panel is in the ON
Position and external power is connected to the airplane. The two ground service transfer relays control the selection of the power source .根据上文,以下错误的是:
发布于 2021-02-27 20:48:51
【单选题】 A 当前乘务员面板上的外部电源按钮设为 ON 时且外部电源有电,可以给地面勤务汇流条供电 B 地面勤务汇流条的电源有两种来源 C 对边的 AC 转换汇流条可以给地面勤务汇流条供电 D 两个地面勤务转换继电器控制电源来源的选择
