Engine system includes the components and units used to control and direct the flow of lubrication through the engine from the inlet fitting to the outlet fitting.

A. The drain float valves in the vent tubes and the vent channels dilute the fuel in the vent system to drain out of the tank when the fuel face is lower than the valve.

B. The drain float valves in the vent tubes and the vent channels permit fuel in the vent system to drain into the tank when the fuel level is lower than the valve.

C. The drain float valves in the vent tubes and from the vent channels allow the fuel in the vent system to drain into the tank when the fuel quantity is lower than the valve.

A. Adjust the frequency to the value giving in table 1.

B. Adjust the frequency per the value given in table 1.

C. Adjust the frequency to the value given in table 1.

A. Code is useless to identify the cables.

B. Put a code on the cables to identify them.

C. A tag should be attached to the cables.

A. 一旦设计和批准，必须建立详尽的维修程序。

B. 一旦设计和授权，必须建立全面的勤务工艺。

C. 一旦设想和批准，必须建立全面的修理程序。

A. 确保电动机操作顺滑。

B. 确保发电机平稳运行。

C. 确保生产者顺利操作。

A. A mixture of fuel and oxygen can cause an explosion.

B. Fuel and oxygen react with each other to cause explosion.

C. A mixture of fluid and oxygen can be set on fire.

A. 确保P36面板上的“交流已连接”及“未使用”指示灯点亮。

B. 确保交流电已连接，并且P36面板上的“未使用”指示灯处于点亮状态。

C. 确保P36面板上的“交流已连接”指示灯点亮，但其并未使用。

A. 手册应随时修订。它们可以是活页形式，带有可接受的临时或永久性装订。

B. 手册应易于修订。它们可以是活页形式，带有耐用的线圈夹或永久性装订。

C. 手册应能够修订。它们可以是活页形式，带有通常的多环式封面或永久性装订。

A. 应该提供手册中使用的符号、缩略语和术语的定义或解释。

B. 应该定义并解释符号，并提供手册中术语和缩略语的使用方法。

C. 应该用手册来定义和解释符号，缩略语，术语的使用。

A. The cleaning/painting section should provide information concerning the material and program needed to clean and paint an area or areas, except for containing safety precautions needed to protect people and material.

B. The cleaning / paint section shall provide information unrelated to the material and procedure required to clean and paint one or more areas, and include the safety precautions required to protect personnel and material.

C. The cleaning/painting portion shall provide information as to material and procedure necessary to clean and paint an area or areas, and contain safety precautions necessary to protect personnel and material.