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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

Turbocharging of marine diesel engine is achieved by two distinct methods, （） termed the constant pressure and the pulse system.

A.respectable
B.respectful
C.respective
D.respectively

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单项选择题

To start the ejection process the oil feed to the centrifuge is first shut off and the oil remaining in the bowl removed by admitting （）.

A.flashing water
B.operating oil
C.flushing water
D.sealing water

单项选择题

To prevent the build up of high stresses engine must not be run continuously （）.

A.faster than dead slow speed
B.slower than dead slow speed
C.with the output of MCR
D.at critical speeds

单项选择题

To counteract these undesirable effects cylinder oils usually contain additives formulated to impart a high degree of （） and detergency.

A.salinity
B.alkalinity
C.acid
D.sanitary

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