It is necessary to clean the filter periodically.

A. 油屑监测器用于监控除油系统中黑色金属和有色金属屑的大小和质量。

B. 磁屑探测器用于探测排油系统中含铁和不含铁金属的尺寸和数量。

C. 油屑探测器用于检测回油系统中黑色金属和有色金属的尺寸和数量。

A. If you must apply a strike to open the unit, examine the control linkage.

B. If you must apply an unusual force to open the unit, examine the turnbuckle.

C. If you must apply an unusual force to open the unit, examine the control linkage.

A. Present the examples, associated conditions and technique on the possible page of the chart and use the page including the chart to concise the necessary information if the space is insufficient.

B. Present the chart, examples, associated conditions and technique on the same page if possible and use the page facing the chart if the space is insufficient for the necessary information.

C. Try to place the examples, associated conditions and technique on the same page as the chart if possible and use another page including the chart to describe the necessary information when the space is not sufficient.

A. 为了供应充足，沿着侧壁和天花板中心的出口将空气分离。

B. 为了供应不过量，沿着侧壁和天花板中心的出口将空气分离。

C. 为了供应对称均衡，沿着侧壁和天花板中心的出口将空气分离。

A. When described the aircraft and its system, you should always use third people talking.

B. Generally, in describing the airplane or its system, third person wording should be used.

C. When you describing the airplane systems, third person mood shall be used.

A. If the drain hole is blocked, clean it.

B. If the drain hole is leaked, clean it.

C. If the drain hole is locked, clean it.

A. On some turbopropeller powered airplanes, the condition lever is the primary control for starting and stopping the engine. On others, it is the primary control used to set engine and propeller speed.

B. On some piston powered airplanes, the condition lever is the secondary control for starting and shutting the engine. On others, it is the secondary control used to set engine and piston speed.

C. On some turbopropeller powered airplanes, the status lever is the secondary control for starting and shutting the engine. On others, it is the secondary control used to set engine and propeller speed.

A. Detection and coding systems shall be used so that it＇s easy to isolate faults, repair routes and replace the components.

B. You should use the detecting and coding system that can help to remove faults, repair lines and change the components.

C. To facilitate troubleshooting, repair of circuits, and replacement of components, an identification and coding system should be used.

A. Visual difference is acceptable between the previous surface and the new surface.

B. There should be no visual difference between the initial surface finish and the new surface finish.

C. It is forbidden to have acoustic difference between the former surface finish and the new surface finish.

A. 如果没有必需的修理程序，仔细检查燃油渗漏来确保不会渗漏更多。

B. 没有必须的维修程序。检查燃油使用频率确保使用量不会变大。

C. 无需执行修理程序。经常检查燃油渗漏情况，确认区域没有扩大。