121.燃油系统通气油箱有:how many vention tank are there in the fuel system?

581.APU在地面出现火警时,哪种情况会发生?( )When APU fire occurs on ground, what goes to happen?( )

580.灭火剂释放电门的DISCH灯何时亮?When will the DISCH light on a AGENT switch come on?( )

579.发动机火警探测环路位于( )? Where are engine fire detectors located? ( )

578.AFECU通过什么部件来执行自动灭火功能? Through which component can an AFECU preform APU automatical fire extinguisging?

577.手提灭火瓶包括哪几个部分? What does a portable fire bottle make up of? ( )

576.FDU内部分为几个通道?( ) How many channels are in a FDU?( )

575.发动机灭火瓶位于( ) Engine fire bottles are located in ( )

574.烟雾探测由什么部件进行监控?( ) Smoke detector singal is processed by ( )

573.货舱灭火瓶位于( )The cargo fire bottle is located in ( )

572.当在废物箱中发生火警时怎么办? How can you put out wast bin fire?9 )