764.Return lines need not be shown in entirety unless needed to understand the system( )

173.A filter prevents contamination of the components in the system( )

172.The checklist should be limited to the minimum number of items determined to be essential to aid the pilot in an emergency( )

171.Push the mounting bracket up and into the mounting slots ( )

170.A separate lamp is included in the left dome light that is part of the emergency light system( )

169.A square wave is produce when there is a flow of electrons for a set period that stops for a set amount of time and then repeats ( )

168.用消毒剂溶液冲洗管道。 ( )

167.确保着陆灯切断开关电源连接安全。( )

166.A 406 MHz digital signal identifies the emergency locator transmitter and its location( )

165.执行此程序来保护碳钢钢索。 ( )

164.This system does not supersede the normal channels of communication for items not covered by the CAP( )