航海英語(yǔ)貨物裝卸貨作業(yè)單項(xiàng)選擇題每日一練(2019.01.14)

來(lái)源：考試資料網(wǎng)

1 When（）clean ballast water from any vessel，an application shall be made to Harbor Authorities for approval.

2 Which of the following statement（s）is/are TRUE regarding a twin pedestal crane set（）.

3 For any given pedestal crane，when the boom is lengthened，the lifting capacity is（）.

4 Which method should be used to warm up the pump turbines prior to discharge（）.

5 On no account（）to be exceeded.