船舶机动航行时，动力装置的故障应按（）。Ⅰ.工作时间来衡量；Ⅱ.

【名词&注释】

动力装置(power plant)、机动性(mobility)、工作时间(working time)、活塞环(piston ring)、金属环(metal ring)、密封圈(seal ring)

[单选题]船舶机动航行时，动力装置的故障应按（）。Ⅰ.工作时间来衡量；Ⅱ.工作次数来衡量

A. 仅l对
B. 仅Ⅱ对
C. Ⅰ或Ⅱ对
D. Ⅰ+Ⅱ

查看答案&解析 查看所有试题

学习资料：

[单选题]发动机换向时间越短其机动性越好，规定不得大于（）s。

A. 5
B. 10
C. 12
D. 15

[单选题]Simplex艉轴密封装置采用的密封圈^{(seal ring)}是（）。

A. 金属环^{(metal ring)}
B. 活塞环
C. 橡胶环
D. “O”形圈

[单选题]The interface between the liquid seal (water) and the oil should be positioned （） possible to the bowl periphery.

A. as far as
B. as soon as
C. as close as
D. as closer a

[单选题]The lower end of each piston rod is reduced in diameter to fit a bore in （）, this being secured to the piston rod by a nut.

A. the crank-web
B. the connecting rod
C. the main bearing
D. the cross-head

[单选题]The term （） refers to one complete sequence of operations required to produce power in an engine.

A. diesel engine
B. stroke
C. cycle
D. compression ratio

本文链接：https://www.51bdks.net/show/8kg7wr.html