正确答案: C

透平油

题目：液压拉伸器的液压系统中除应使用纯净的液压油外，还可使用（）作为液压油。

查看原题 查看所有试题

学习资料的答案和解析：

[单选题]可靠性定义中所述及的“规定的条件”，包括（）。Ⅰ.环境温度、压力、湿度；Ⅱ.振动；Ⅲ.承受的负荷

Ⅰ+Ⅱ+Ⅲ

[单选题]除镍铝青铜桨外，其他材料的螺旋桨桨叶热校正之后应进行（）处理。

退火

[单选题]舵杆常见的失效形式中不包括（）。

折断

[单选题]（） is used for washing and drinking.

The domestic system

[单选题]Diesel engines are started by supplying （） into the cylinders in the appropriate sequence for the required direction.

compressed air

[单选题]Lubricating oil for an engine is stored at the bottom of the （）, known as the sump or in a drain tank located beneath the engine.

crankcase

[单选题]The successful operation of any engine or machine and （） depend on effective lubrication.

its trouble-free life

[单选题]Which of the following devices is common to both mechanical and hydraulic governors?（）

A servomotor

[单选题]What is an advantage of a steam turbine over a diesel for the main propulsion?（）

Less weight per unit of horsepower