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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 > 船舶电气与船舶安全

单项选择题

Governors are equipped with motors for synchronizing, load sharing and frequency control（）

A.speed setting
B.load setting
C.speed changing
D.load changing

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单项选择题

In engines with system, the lubricating oil can be added to the engine through the filling hole in the crankcase cover, by using a hand oil can, or through the separator pipe（）

A.lubricating oil
B.dry sump
C.circulated tank
D.wet sump

单项选择题

Main engines as well as auxiliary engines operating on heavy fuel should have continuous on the lubricating oil, either according to the bypass or batch principles（）

A.filtering
B.centrifuging
C.depositing
D.operating

单项选择题

These acid residues must be prevented from entering the crankcase, otherwise the lube oil would be（）

A.contaminated
B.emulsified
C.deteriorated
D.oxidated

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