轮机英语船舶电气与船舶安全章节练习(2018.03.19)

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1 When an air started, four-stroke/cycle diesel engine is being cranked, the starting air is admitted to each cylinder during what would normally be the（）

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2 Why is it desirable to operate paralleled AC generators at the same power factor?（）

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3 Fuel has to be injected into the engine at a high pressure so that it （） correctly.

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4 To reduce the weight of the reciprocating parts, pistons of high-speed engines are made considerably shorterThis results in （）

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5 When preparing an engine for water temperature（）

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6 A fire is considered "under control" when （）.

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7 （）is not installed on the main switchboard.

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8 Combustion gases formed in the cylinder of a diesel engine are prevented from blowing past the piston by （）

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9 The vapors given off by heated fuel oil are flammable, explosive, and （）

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10 The load on the crosshead pin is always （）, so it is the （）half of the bearing which is subject to wear.

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