The globe valve has a bulbous body, housing a valve seat and

【名词&注释】

排气阀(exhaust valve)、二冲程柴油机(two-stroke diesel engine)、四冲程柴油机(four-stroke diesel engine)、活塞环槽(piston ring groove)

[单选题]The globe valve has a bulbous body, housing a valve seat and screw down plug or disc arranged at right angles to the axis of the pipeAccording to the above sentence, which of the following statements is not true?

A. The profile of the valve is like a globe
B. The valve seat is set into the bulbous body
C. The plug or disc of the valve is made vertical to the axis of the pipe
D. The valve seat is located at right side of the plug or disc

查看答案&解析查看所有试题

学习资料：

[单选题]GMDSS船舶电源包括_____。

A. 主电源
B. 应急电源
C. 备用电源
D. C均是

[单选题]过度磨损的活塞环槽^{(piston ring groove)}光车之后，可采用_______恢复尺寸

A. 磨削
B. 堆焊
C. 镶垫环
D. 镀铁

[单选题]气缸盖上无进、排气阀，这种气缸盖的机型是()

A. 四冲程柴油机
B. 二冲程柴油机
C. 二冲程直流扫气式柴油机
D. 二冲程弯流扫气式柴油机

本文链接：https://www.51ksbd.net/show/pdp9ez.html