航海英語液體散貨運及有關(guān)規(guī)則單項選擇題每日一練(2019.01.25)

來源：考試資料網(wǎng)

1 In which case is the IOPP Certificate of an inspected vessel NOT invalidated? （）

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2 Pump out No.2 port ballast tank to（）.

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3 A tankerman who permits or causes oil to go into a navigable waterway may be punished federally by（）.

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4 Litmus paste is used in order to determine（）.

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5 After an IOPP Certificate is issued to an inspected vessel，how many other surveys of the vessel’s pollution prevention equipment are conducted during the period of validity of the certificate?（）

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