正确答案: A
35
题目:已知某船排水量为2O000t,主机有效功率为10O00kW,主机重量为350t,动力装置总重量为8O0t,则该船主机单位重量为()kg/kW。
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学习资料的答案和解析:
[单选题]船舶能量利用效率与()有关。Ⅰ.动力装置的热工完善程度;Ⅱ.推进装置的工作效率;Ⅲ.船体状态和航行条件
Ⅰ+Ⅱ+Ⅲ
[单选题]水管锅炉应装自动吹灰器,MAN-B&W公司建议每天吹灰()次。
4
[单选题]吊缸检修完毕后,发现零件漏装时应()。
查找漏装部位重新进行安装
[单选题]轴系理论中心线是()的定位安装基准。
主机
[单选题]当铁梨木轴承的轴承间隙超过标准,而铁梨木板条的厚度低于极限值时应采用()修理。
更换艉轴铜套
[单选题]舵杆上有()条细小的纵向裂纹时可以钳工修磨。
2~3
[单选题]If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler, the cause maybe ().
abnormally high feed water temperature
[单选题]The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing workThis is known as ().
brake horsepower
[单选题]My ship’s engine responds well to telegraph orders and takes about 80 seconds to reverse from full speed ahead to full speed astern.This sentence().
indicates the engine's particulars