【名词&注释】
螺旋桨(propeller)、动力装置(power plant)、工作效率(work efficiency)、极限值、排水量(displacement)、理论中心线(theoretical centerline)、总重量(total weight)
[单选题]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(total weight)为8O0t,则该船主机单位重量为()kg/kW。
A. 35
B. 80
C. 40
D. 17.5
查看答案&解析
查看所有试题
学习资料:
[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
A. Ⅰ+Ⅱ
B. Ⅰ+Ⅱ+Ⅲ
C. 仅Ⅰ对
D. 仅Ⅱ对
[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。
A. 4
B. 3
C. 2
D. 1
[单选题]吊缸检修完毕后,发现零件漏装时应()。
A. 查找漏装部位重新进行安装
B. 保存起来,下次吊缸时再补装
C. 报废处理
D. 以上均可
[单选题]轴系理论中心线(theoretical centerline)是()的定位安装基准。
A. 螺旋桨
B. 舵系
C. 中间轴
D. 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。
A. 换新轴承
B. 更换下瓦
C. 更换艉轴铜套
D. 更换艉轴
[单选题]舵杆上有()条细小的纵向裂纹时可以钳工修磨。
A. 1~2
B. 2~3
C. 3~4
D. 4~5
[单选题]If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler, the cause maybe ().
A. high steam pressure in the boiler
B. abnormally high feed water temperature
C. abnormally high boiler water temperature
D. steam demand exceeding feed pump capacity
[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 ().
A. indicated horsepower
B. brake horsepower
C. net horsepower
D. friction 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().
A. indicates the engine's particulars
B. tells the engine's function
C. shows the engine's type
D. refers to the engine's informatio
本文链接:https://www.51bdks.net/show/zz44y5.html