航海英語船員職務名稱單項選擇題每日一練(2019.01.20)

來源：考試資料網(wǎng)

1 Each OSV must carry（）.

2 Each drilling unit equipped with helicopter fuel storage tanks must have the tanks installed as far as practicable from the（）.

3 Each hand portable fire extinguisher on a ship must be marked with（）.

4 Each fire hose coupling on a ship must have threads that meet the specifications of the（）.

5 Each hand portable，semi-portable and fixed fire extinguishing unit on a ship must be tested and inspected at least once every（）.