正确答案: D

曲轴

题目：船轴不包括（）。

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学习资料的答案和解析：

[单选题]船舶动力装置的管路系统，按用途不同可分为（）类，即（）。

2/动力系统、辅助系统

[单选题]MAN-B&W公司推出的标准废气锅炉系统，主要特点是废气锅炉为单压蒸汽系统；产生饱和蒸汽供加热之需；废气锅炉与燃油辅助锅炉之间有循环水泵并共用一个汽鼓，对其评价可选为（）。

具有明显的简单性和低投资成本，又完全满足船舶加热所需蒸汽量的要求

[单选题]A high temperature alarm or （） which will melt is used to guard against the explosion of compressor air pipelines.

a fusible plug

[单选题]Dirt in the fuel oil system of a diesel engine can cause （）.

clogged filters

[单选题]It is important to use only pure lead and to choose a thickness of wire which is greater than the normal allowable clearance but （） this amount.

not greater twice than

[单选题]The highest pressure in a diesel engine cylinder normally occurs （）.

after TDC

[单选题]If your propeller is racing in rough weather，you should（）.

decrease your engine speed