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全部科目 > 水路交通运输技能考试 > 海船船员考试 > 船舶管理(轮机专业) > 轮机英语 > 船舶动力装置

单项选择题

There should be a lubricating oil （） between the main beatings and the crankshaft.

A.film
B.cap
C.lacquer
D.shell

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单项选择题

There is an injection pump for each cylinder, which is usually operated once every cycle by （） on the camshaft.

A.a gear
B.a cam
C.a rod
D.a miler

单项选择题

There is a （） system lubricating the running gear and cooling the piston and sometimes lubricating the cylinders.

A.recirculating
B.total loss
C.cooling
D.refrigeration

单项选择题

There is （） in any water cooling system for a diesel engine allowing for expansion and water make-up in the system as well as air vent and chemicals addition.

A.a setting tank
B.a service tank
C.a head tank
D.an expansion joint

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