航海英語船舶檢驗(yàn)報告單項(xiàng)選擇題每日一練(2019.01.07)

來源：考試資料網(wǎng)

1 Before welding can be done in a tank that has carried petroleum products，a certificate must be obtained from（）.

2 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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3 The bottom of the mast rests on a part of the keel called the mast（）.

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4 The certificate of a Lloyd’s surveyor（）likely to be accepted by the court as conclusive to show that the carrier has exercised due diligence when it relates to a case in which he has built or bought a vessel in the first instance．

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5 The end of the joint with the exterior threads is called the（）.

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