Service Bulletin No. 105 changes the bolts that attach the power control unit.

A. If you find metal particles in the pump, find their source and repair the defective part.

B. If magnetic particles are found in the pump, locate their location and repair the affected part.

C. Locate their source and disassemble the defective part if you find metal objects.

A. An annunciator device is displayed on the panel, which shows how it works.

B. If an annunciator panel is installed, explain how it operates.

C. If a display appears on the annunciator panel, it explains that how the system works.

A. 时刻是一个项目的重量和它的手臂的乘积。

B. 力矩是一个项目的重量除以它的力臂的产物。

C. 力矩是一个项目的重量乘以它的力臂的乘积。

A. Do not use verbs that are general and vague.

B. Do not use verbs that are normal and mixed.

C. Do not use verbs that are usual and blended..

A. Additional information may follow the check list to make the check list easier for the pilots to understand it.

B. The additional information should be followed by the pilots to make better understanding the check list.

C. The additional information is followed the check list, to make the pilots better understanding the check list the pilots should read it in sequence.

A. During the retraction test, keep a close watch on the monitor.

B. Continuously observe the indications after the retraction test.

C. Monitor the indications during the retraction test.

A. Exhale into the oxygen mask.

B. Breathe into the oxygen mask.

C. Breathe into the gas mask.

A. 给凸起的固定环和堵塞指示器打保险。

B. 给滚花固定环和堵塞指示器本体打保险。

C. 给带凸边的密封环安装保险丝，以固定指示器本体。

A. 当控制手柄到DN位时，齿轮箱壳体会打开，齿轮松开并退出，壳体关闭。

B. 当控制手柄处于DN位置时，起落架舱门会打开，起落架解锁并伸出，然后舱门关闭。

C. 将控制手柄推到DN位置时，货舱门将打开，传动装置解锁可用，收回后则关闭。

A. Uncontrolled system or old equipment cause hydraulic fluid flow from hydraulic system A to B.

B. If you fail to operate the system control properly or the equipment is damaged, the hydraulic fluid will be transferred between hydraulic system A and B.

C. Flow of hydraulic fluid between hydraulic system A and B result in accidental operation of system controls or damaged equipment.