正确答案: D

螺旋桨推力功率

题目：动力装置燃料消耗率bz指的是动力装置每小时燃油消耗量与（）之比。

查看原题 查看所有试题

学习资料的答案和解析：

[单选题]带有匙形键槽且根部有适当圆角的单螺旋桨轴或艉轴，其检验间隔期规定为（）。

4年

[单选题]The crank-room cover should not be opened until at least （） minutes after the engine stops.

15

[单选题]The engine is started with （） supplied from air receivers.

compressed air

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

a nut