单选题 何时空调面板的组件电门故障灯亮? When is the air condition panel PACK selector fault light ON?

单选题 着陆时速度多少且起落架支柱被压缩冲压空气进气口调节片将关闭? At landing, ram air inlet flaps closes when the landing gear strut is compressed and when the speed is ______.

单选题 组件流量控制在 APU 工作时以什么状态工作? When APU is supplying bleed air, pack flow control delivers:

单选题 起飞和着陆期间冲压空气进气口调节片关闭是为 During takeoff and landing, ram air inlet flaps closes to:

单选题 下列哪一种说法是正确的? Which of the following is true?

单选题 客舱的实际温度传感器位于: In cabin, the actual temperature sensors are located:

单选题 在地面时客舱增压系统 On ground, the cabin pressurization system

单选题 区域控制器主通道失效: When zone regulator primary channel fails,