1633. Only when both manufacturer and operator do their job can remain an entire fleet of airplanes continuously airworthy

A. 在中心壳体的每个端头上是一个含有一个橙色活塞的液压油总管。

B. 在中心壳体的每个端头上是一个含有一个环状活塞的液压油总管。

C. 在中心壳体的每个端头上是一个含有一个铝制活塞的液压油管路。

A. That portion of the system which uses magnetic gyroscopic and inertia forces. Includes items such as gyro horizons, directional gyros, magnetic compasses, and magnetic heading systems, turn and bank, amplifiers, servos, and flight director, etc.

B. That portion of the system which uses magnetic gyroscopic and inertia forces. Includes items such as gyro verticalizer, directional gyros, magnetic compasses, and magnetic heading systems, turn and bank, amplifiers, servos, and flight director, etc.

C. That portion of the system which uses magnetic gyroscopic and external forces. Includes items such as gyro horizons, directional gyros, magnetic compasses, and magnetic heading systems, turn and bank, amplifiers, servos, and flight director, etc.

A. Both 28v dc and 115v are supplied to the ignition system.

B. Either 28v dc or 115v is supplied to the ignition system.

C. Only 28V dc power is supplied to the ignition system.

A. Different meanings occur when words are combined in different ways.

B. When words can link up in different ways, ambiguity occurs.

C. Misunderstanding happens when words are contained in different modes.

A. Check the defect before you start the procedure again.

B. Rectify the defect before you start the procedure again.

C. Define the defect before you start the procedure again.

A. 勤务氧气前,停止所有的加放燃油,液压系统的所有维修,以及所有使用易燃材料的程序,如清洁和除冰材料。

B. 充氧前,停止所有加油,修理燃油和液压系统,以及所有使用易炸材料的程序如清洁和除冰液。

C. 充氧前,停止所有加油,燃油和液压系统的所有维修,以及所有使用易燃材料的程序如清洁和除冰材料。

A. 饮用水系统用于存储和输送新鲜的饮用水;如果饮用水也用于洗涤,则包括洗涤水系统

B. 净水系统用于存储和输送新鲜的纯净水;如果纯净水也用于洗涤,则包括洗涤水系统

C. 饮用水系统用于存储或输送新鲜的饮用水;如果饮用水也用于洗涤,则包括洗涤水系统

A. The flow of the system can be traced as easily as possible through the arrangement of the diagram.

B. A reasonable distribution of the diagram helps to duplicate the flow of the system with least difficulties.

C. The diagram shall be arranged in order to draw a minimum flow of the system without effort.

A. In terms of format, style and method of presentation of the rules written in this specification, the material contained in Maintenance Manuals designed by manufacturers should be prepared under the guidance of the it.

B. In terms of format, style and method of presentation, the material contained in Maintenance Manuals designed by manufacturers should be made in accordance with the rules written in this specification.

C. The material contained in Maintenance Manuals designed by manufacturers should be prepared under the guidance of the rules written in this specification In terms of format, style and method of presentation.

A. Each system is composed of basic components and all equipment, mechanic controls and system related electric and hydraulic units.

B. Basic components and all apparatus are made up of each system, including mechanical controls and electrical and hydraulic units related system.

C. Each system includes the basic components and all instruments, mechanical controls, electrical and hydraulic units related to the system.