2120.Replace components that are worn more than the maximum limits.

A. Move the IDG forward and outboard until it is away from the accessory gearbox,QAD ring and power plant.

B. Move the IDG towards the forward position until the input shaft is away from the accessary gearbox and QAD ring,then move the IDG towards outboard and free of the power plant.

C. After moving the IDG towards the forward position,then it is free of the accessary gearbox,QAD and the power plant.

A. 每页底部应标明页码和发行日期或修订日期。

B. 每页都应有页码和日期或改版日期。

C. 每页都应有页码,并且日期或改版信息在底部。

A. Utilizing an airplane as intended by the manufacturer and sound inspection and maintenance practices is basis that assures the airplane remains airworthy and safe to operate.

B. One of the basis for assuring the airplane remains airworthy and safe to operate is sound inspection and maintenance practices and forms.

C. Utilizing an airplane as intended by the manufacturer is the only basis for assuring the airplane remains airworthy and safe to operate.

A. 737NG 翼展是 112.58 英尺。

B. 737NG 翼尖小翼尺寸为 112.58 英尺。

C. 737NG 停放时大翼间距至少为 112.58 英尺。

A. A motor can power all the systems.

B. One generator can power for all the systems.

C. One generator can supply power for all the systems.

A. 操作增压的系统时会导致人员受伤。

B. 对压力系统进行工作时会导致人员受伤。

C. 增压系统会导致正在工作的人员伤亡。

A. Apply two kindreds of protective compound to shield the sealant from any harm caused by hydraulic fluid.

B. In order to prevent damage to the sealant from hydraulic fluid,it is necessary to apply two layers of protective compound.

C. To prevent hydraulic fluid from drowning the sealant,it is recommended to apply two layers of protective compound.

A. 本程序指出,在飞机进行任何改装之前,应联系美国联邦航空局,以确保不违反飞机的适航性。

B. 本程序指出,在飞机进行任何改装之前,美国联邦航空局应与厂家确认其不违反飞机的适航性。

C. 本程序指出,在飞机进行任何改装之初,应联系美国联邦航空局,以确保飞机的适航性。

A. The coating thickness must be more than 0.05mm and less than 0.06mm.

B. The thickness of the second coating layer must be 0.05mm and 0.06mm.

C. The thickness of primer layer must be between 0.05 mm and 0.06 mm.

A. 组装总管。

B. 安装连杆。

C. 安装总管。