輪機(jī)英語(yǔ)船舶輔助機(jī)械單項(xiàng)選擇題每日一練(2019.01.23)

來(lái)源：考試資料網(wǎng)

1 With reference to an axial piston pump, which one of the following statements is true?（）

2 The pump discharge pressure will be considerably higher than the pressure at the （）.

3 Which of the following statements is true concerning the overall efficiency of air compressors?（）

4 In an electro-hydraulic steering system, under movement is maintained in close synchronization with the steering wheel position by means of the （）.

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5 Propeller pitch speed minus ship speed divided by the propeller pitch speed is termed （）.

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