轮机英语船舶辅助机械章节练习(2018.01.04)

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1 Which of the following statements describes the functions of a reservoir used in a hydraulic system?（）

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2 To correct the condition of slugging and flooding back in a refrigeration system, it may be necessary to （）.

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3 The static suction lift of a pump is the difference in elevation between the （）.

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4 Between the steam dram and the smaller water dram below, large numbers of smaller diameter （） tubes are fitted.

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5 In a （） boiler the water flows through the inside of the tubes while the hot gases pass around the outside.

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6 When the boiler load returns to normal, the drum pressure will rise and steam bubble formation will reduce, causing a fall in water level This is known as （）.

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7 A pressure drop through the refrigerant liquid line may cause （）.

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8 Through a （） pump, the liquid is transferred from the suction to the discharge by the mechanical variation of the volume of a chamber or chambers.

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9 The simplest method to use for determining if a centrifugal pump is operating as designed, is to （）.

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10 If a heavy sea strikes the rudder, the shock is transmitted through （） to the rams, this cause a sudden increase in oil pressure in one of the cylinders.

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