2290.Autopilot uses radio beam,vertical gyro,Pitot static and manually induced inputs to the system to automatically control yaw,pitch and roll of the aircraft.

A. When the cumulative revised pages (including back-up pages) exceeds 60% of the total pages of the manual,a reissue should be prepared.

B. If the updated pages,including back-up pages,were less than 60% of the total page of the manual,a new manual should be copied.

C. Up to 60% of total pages (including back-up pages) were accumulated by mistake,the manual should be rewritten.

A. 转动凸轮以松开管路。

B. 转动卡箍以使管路自由移动。

C. 转动卡箍以松开管路。

A. 机身上有三个顶升点。

B. 机体上有三个基准点。

C. 机腹上有三个插孔。

A. The system interface circuits control the physical properties of the connected systems.

B. The system interface circuits adapt to the physical properties of the connected systems.

C. The physical configuration of the connected systems defies the behavior of the system interface circuits.

A. 调整加速度计的精度。

B. 准确调整陀螺仪。

C. 调整罗盘的精度。

A. If the repair scheme must be changed,the approval of the design authority is hardly got.

B. If the design authority need change the repair scheme,it can get the approval.

C. If it is necessary to change the repair scheme,get the approval of the design authority.

A. 在向系统中注入新滑油之前,强制性重置油滤。

B. 在向系统中注入新滑油之前,必须更换油滤。

C. 在系统中注入新滑油之前,建议更换过滤器。

A. 描述飞机起落架时,应描述前轮制动。

B. 描述飞机起落架时,应描述机轮刹车。

C. 描述飞机起落架时,应描述机轮停车。

A. 描述飞机发动机时,应简要阐述异常运行。应保持在最低限度以帮助飞行员纠正形势或使他能够向机械师描述情况。它不应是一个维修程序。

B. 描述飞机发动机时,应简要阐述非正常运行。应在最低限度帮助飞行员改正情况或使他能够向机械师描述情况。它不应是一个维修程序。

C. 描述飞机发动机时,应对非正常运行情况进行简要描述。应以帮助飞行员纠正非正常情况或使其能够向机械师描述非正常情况为宜。无须是具体的维修程序。

D. B.描述飞机发动机时,应简要阐述非正常运行。应在最低限度帮助飞行员改正情况或使他能够向机械师描述情况。它不应是一个维修程序。

E. C.描述飞机发动机时,应对非正常运行情况进行简要描述。应以帮助飞行员纠正非正常情况或使其能够向机械师描述非正常情况为宜。无须是具体的维修程序。

A. Ensure you switch off the brown VALVE CLOSED light next to each switch.

B. Make sure the amber VALVE CLOSED light below each switch goes off.

C. The purple VALVE CLOSED light under each switch is confirmed off.