輪機(jī)英語(yǔ)船舶動(dòng)力裝置章節(jié)練習(xí)(2018.03.29)

來(lái)源：考試資料網(wǎng)

1 In a normally operating diesel engine, the main cause of lubricating oil contamination in the crankcase is a result of the （）.

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2 In a diesel engine cooling water system, a pH of 60 indicates a/an （）.

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3 The pressurized air is usually cooled to increase the charge air （）.

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4 Oil pressure in the lubrication system is （） the static sea water head to ensure that sea water （） the stem-tube.

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5 A diesel engine burns （） a gasoline engine of the same capacity in the same period of time.

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6 According to the way the energy of the exhaust gases is utilized, pressure-charging can be divided into two main systems, namely, the constant-pressure system and （）.

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7 The opening or closing of the cylinder starting valve is controlled by （）.

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8 Which of the following conditions could cause the feed pump for an auxiliary boiler to lose suction?（）

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9 The possibility of damage from operating a diesel engine at critical speeds is reduced by the use of（）.

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10 The crankshaft is of the semi built type, with the journal （） the forged or cast steel crank throws.

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