1374. If the valve opening is premature, stop the test

A. Make sure the cabin pressure relief valve is open.

B. Make sure the cabin pressure outflow valve is open.

C. Make sure the cabin pressure bypass valve is open.

A. 系统中向座舱提供压缩空气的部分及其控制装置。包括与涡轮相关的控制和指示系统等项目,如适用。不包括客舱增压的压力控制和指示系统。

B. 系统中向座舱提供压缩空气的部分及其控制装置。包括与压气机相关的控制和警告系统等项目,如适用。包括客舱增压的压力控制和指示系统。

C. 系统中向座舱提供压缩空气的部分及其控制装置。包括与压气机相关的控制和指示系统等项目,如适用。不包括客舱增压的压力控制和指示系统。

A. 对于标准和选装的发动机和螺旋桨装置以及燃油和滑油系统,应提供描述性数据。

B. 参考数据应包活标准和可用发动机和螺旋桨设备以及燃油和滑油系统。

C. 系统数据必须涵盖常规和可用发动机和螺旋桨装置以及燃油和润滑油系统。

A. These buses consume power directly from the battery.

B. These buses accept the direct current of battery.

C. The battery supplies power directly to these buses.

A. ADHERE

B. FOLLOW

C. OBEY

A. 接通液压时应确保手柄未接触止动点

B. 液压释压时,确保手柄未触碰到止动点

C. 使用液压时应确保控制手柄持续移动

A. The rudder is used for yaw control

B. The elevator is used for yaw control

C. The rudder is used for pitch control

A. 在表面盖上一层塑料传输板。

B. 在表面放置塑料材料板。

C. 在表面覆盖一层透明的塑料膜。

A. When a capital letter or a symbol is used for a unit of measurement, you should take it and the number before it as a word.

B. When used in measurement, the acronym or the symbol and the related number should be taken as a word.

C. When you write an abbreviation or a symbol for a unit of measurement, count it and the preceding number as one word.

A. The instruments where are light in weight and small in volume are used in the space shuttle.

B. The instruments which are light in weight and small in volume are used in the space airplane.

C. The instruments possessing the characteristic of light weight and small volume are used in the space shuttle