2253.In the description of the airplane's Vacuum or Pneumatic System,how the system can be checked shall be explained.

A. This program describes how to identify an immediate failure and how to handle a malfunction occurred.

B. This procedure explains how to recognize impending problems and what to do if malfunctions occur.

C. How to confirm the current problems and what should you do when malfunctions occur are described in this procedure.

A. Turbine press air is in the aft right body fairing.

B. The ram air turbine is located in the aft right body fairing.

C. The air pressed by turbine is located in aft right body fairing.

A. 不论怎样的“危机”大多数总是会出现需要马上快速反应的故障,比如全动力故障,着火或烟雾,或者客舱的快速释压。

B. 可是一个“危急情况”几乎总伴随着故障,需要立即快速反馈,比如一个动力装置故障,着火或烟雾,或快速客舱减压。

C. 然而,“紧急情况”几乎总是涉及需要立即和快速响应的故障,如整个动力装置失效,火灾或烟雾,或座舱快速失压。

D. C.然而,“紧急情况”几乎总是涉及需要立即和快速响应的故障,如整个动力装置失效,火

E. C.然而,“紧急情况”几乎总是涉及需要立即和快速响应的故障,如整个动力装置失效,火灾或烟雾,或座舱快速失压。

A. The gears will automatically engage if a malfunction occurs.

B. If there is proper functioning,the gears will automatically engage.

C. If there is a malfunction,the gears will automatically disengage.

A. Supply airspeed instructions and the operational significance of such instructions.

B. Provide airspeed limitations and the operational instruction of such limitations.

C. Provide airspeed limitations and the operational significance of such limitations.

A. Remove the 3 screws from the flap of the motor assembly.

B. Remove the 3 nuts from the flange of the motor assembly.

C. Remove the 3 screws from the flange of the motor assembly.

A. 标题页的背面应留白,以避免版本更新以及插入的飞机生产线号和注册号丢失的情况。

B. 标题页的背面应留白,以免需要改版,以及可能遗漏插入的飞机序列号和注册号。

C. 在标题页的背面留空以便于修订需要,同时避免丢失插入的飞机序列号和生产线号。

A. Make sure that the oil in the hydraulic tank is above the minimum lever.

B. Make sure that the fluid in the hydraulic reservoir is above the minimum level.

C. Make sure that the fluid in the fuel reservoir is below the maximum level.

A. 本节必须明确型号合格证所要求的每个自愿更换时间、结构检查时间以及相应的结构检查程序。

B. 本节必须明确机型证书所要求的每个自主更换时间、结构检查周期以及相关结构检查程序。

C. 本节必须明确型号合格证所要求的每个强制更换时间、结构检查间隔以及相关结构检查程序。

A. If no tabs are used,an identification method should be supplied to facilitate the location of each system or section.

B. If tab dividers are not used,a method of identification shall be provided to permit easy location of each System or Chapter.

C. An identification way should be offered to locate the system and chapter easily if the dividers are improper.