2193. It is( )install more than two washers for each bolt

A. Make sure that the cabin differential pressure is zero before you unlock the door.

B. Be sure that the variance of the cabin pressure is zero before you open the door.

C. Make certain that the difference of the compartment compression is zero before you open the door.

A. 组件延伸至壳体,安装并连接在通信控制组件上。

B. 组件延伸至壳体组件,并与伸缩控制组件相连。

C. 组件延伸至壳体组件,并与通讯控制组件相连。

A. The rudder is used for yaw control

B. The elevator is used for yaw control

C. The rudder is used for pitch control

A. 热空气从接头渗漏的迹象之一是温度指示降低。

B. 热空气从管道渗漏的迹象之一是温度指示降低。

C. 热空气渗漏的迹象之一是接头处的温度指示降低。

A. There are remarks directly below the maintenance/overhaul section, extended from left to the right side.

B. You can find the comments which extends from left to right margins in the repair/modification section below.

C. The comments extended from right to left margins are located in the repair/alternation section.

A. 向前旋转手柄

B. 向后移动水平面

C. 向后移动手柄

A. 不要加注过量燃油。

B. 不要使用未知性能的燃油。

C. 不要使用性能未知的油液。

A. In terms of format, style and method of presentation of the rules written in this specification, the material contained in Maintenance Manuals designed by manufacturers should be prepared under the guidance of the it.

B. In terms of format, style and method of presentation, the material contained in Maintenance Manuals designed by manufacturers should be made in accordance with the rules written in this specification.

C. The material contained in Maintenance Manuals designed by manufacturers should be prepared under the guidance of the rules written in this specification In terms of format, style and method of presentation.

A. 一套俯仰保持系统,在左右液压系统之间的动力转换组件,将提供给水平安定面第三种动力源。

B. 一套俯仰增强系统,在左右液压系统之间的动力转换组件,将提供给水平安定面第三种动力源。

C. 一套俯仰增强系统,在左右液压系统之间的动力转换组件,将提供给升降舵第三种动力源。

A. 电气和液压系统控制相关的门系统。

B. 适当地包括与门控制相关的电气和液压系统。

C. 电气和液压系统应用于门控制相关部件。