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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(驾驶专业) > 航海英语 > 船舶及其结构 > 船舶动力装置

单项选择题

For most ship engines，the fuel is（）.

A.natural gas
B.diesel oil
C.propane
D.bunker fuel

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单项选择题

Diesel engines obtain combustion air through turbo chargers，blowers，or（）.

A.air starters
B.carburetors
C.natural aspiration
D.air receivers

单项选择题

Diesel engines are considered safer than gasoline engines because（）.

A.they are more heavily built
B.the fuel used is less volatile
C.they can be easily reversed
D.they operate at a lower speed

单项选择题

Before starting any diesel or gasoline engine，which of the following must be checked? （）

A.Oil level
B.Flow of cooling water
C.Exhaust discharge
D.All of the above

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