輪機(jī)英語(yǔ)船舶輔助機(jī)械章節(jié)練習(xí)(2017.12.01)

來(lái)源：考試資料網(wǎng)

1 If one hydraulic pump of an electro-hydraulic steering unit falls, the vessels steering can be initially and best maintained by using the （）.

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2 Prior to running the hydraulic pump, examine the system carefully and ensure that the lever of control valves is in （） position.

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3 In a general cargo crane, （） is fitted to lift the cargo load.

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4 Which of the following chemicals will be used where protection against caustic cracking is required in boiler treatment?（）

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5 Grease the roller bearings with HPgun In the sentence “HP” means （）.

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6 Sealing in pump shaft is achieved by means of the （）.

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7 Two rams of the hydraulic gear are linked at their outer ends to （） by a crosshead and swivel block.

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8 In a hydraulic system, （） are used to protect the system from over pressure.

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9 When the union purchase derrick is operated, one derrick is positioned over the quayside and the other almost vertically over the （）.

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10 Which of the following operations need NOT to be entered on the Oil Record Book Part I?（）
(1) Disposal of oil residues
(2) Internal transfer of fuel oil

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