辅助系统是为船舶平衡、稳性、人员生活和安全服务的管路系统，也

【名词&注释】

柴油机(diesel engine)、废气涡轮增压器(exhaust driven supercharger)、二冲程低速、气缸中心线

[单选题]辅助系统是为船舶平衡、稳性、人员生活和安全服务的管路系统，也称为（）。

A. 平衡系统
B. 安全系统
C. 船舶系统
D. 压载系统

查看答案&解析 查看所有试题

学习资料：

[单选题]二冲程低速柴油机废气涡轮增压器的排气背压一般不宜超过（）MPa。

A. 0.002
B. 0.0025
C. 0.003
D. 0.0035

[单选题]在进行活塞运动部件校中时，必须测量（）。

A. 曲轴的臂距差
B. 滑块与导板的间隙
C. 连杆大小端轴承的径向间隙
D. 导板平面与气缸中心线的平行度

[单选题]Engine fuel pump index is （）.

A. the viscosity index
B. the fuel oil contents
C. the starting speed
D. the reading at the rack

[单选题]On top of scavenging air box is mounted a strong cast iron frame for each cylinder known as（）

A. cooling jacket
B. cylinder liner
C. piston crown
D. cylinder cover

[单选题]The injector pump is operated by a cam which drives （） up and down.

A. the needle valve
B. the plunger
C. the piston
D. the cylinder

[单选题]The viscosity regulator controls the （） of the fuel oil in order to provide the oil at the correct viscosity for combustion.

A. temperature
B. pumping rate
C. pressure
D. heat

[单选题]When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）

A. During operation at low speed
B. During operation at rated speed, but low power output
C. During acceleration
D. All of the above

[单选题]A towing vessel’s capability is BEST measured by horsepower，bollard pull，maneuverability and（）.

A. displacement
B. stability
C. towrope pull
D. propeller desig

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