3119. Isolate the defective portion of the circuit

A. OEUs将主汇流条上的5V交流电转换成115V交流电以供给排呼叫灯和12v交流电的阅读灯。

B. OEUs将来自主汇流条的115V交流电转换成用于排呼叫灯的5V交流电和用于阅读灯的12v交流电。

C. OEUs将来自主汇流条的115V交流电转换成5V和12v的直流电,用于排呼叫灯和阅读灯。

A. 系统/部分应由标准编号系统中的第二个元素标识

B. 子系统/部分应由标准编号系统中的第二个元素标识

C. 子系统/部分应由标准编号系统中的第二个元素来显示

A. 加油活门可以在前起落架减震支柱下部找到

B. 充气活门位于前起落架减震支柱顶部

C. 充气活门可以在前起落架顶部的减震支柱上面找到

A. 它指出了零件或组件的制造商的建议在翼时间

B. 它给出了制造商建议的零件或组件退役时间。

C. 它说明了制造商推荐零件或组件的报废时间。

A. The manufacturer may establish procedures to provide feedback on unairworthy conditions that were discovered when complying.

B. The manufacture may set up procedures to provide feedback when user find some unairworthy conditions discovered by manufacture.

C. The manufacture can establish program to receive feedback of users when they discover unairworthy conditions of requirements.

A. Database synchronization is a available.

B. Database synchronization is in progress.

C. The database is already synchronizing.

A. A fly-by-wire(FBW) system replaces manual flight control of an aircraft with an electronic interface.

B. For a fly-by-wire(FBW) system, the flight control of an aircraft is replaced with an electronic interface manually.

C. Regarding the fly-by-wire(FBW) system, the manual flight control of an aircraft is used rather than an electronic interface.

A. Each system is composed of basic components and all equipment, mechanic controls and system related electric and hydraulic units.

B. Basic components and all apparatus are made up of each system, including mechanical controls and electrical and hydraulic units related system.

C. Each system includes the basic components and all instruments, mechanical controls, electrical and hydraulic units related to the system.

A. 用于指示低压的压力计使用更灵活的管子,更容易展开和卷绕

B. 用于指示较低压力的仪表使用更易弯曲的管子,线圈更易散开和缠绕。

C. 用于指示较低压力的压力表使用的软管更加柔软,可以随时解开和盘绕。

A. The pneumatic system gets compressed air from the pneumatic air sources and supplies the compressed air through ducts to the user systems.

B. The pneumatic system gets compressed air from the pneumatic air sources and supplies the compressed air through manifold to the user systems.

C. The pneumatic system gets comprised air from the pneumatic air sources and supplies comprised the air through ducts to the user systems.