航海英語船舶設(shè)備名稱單項(xiàng)選擇題每日一練(2019.01.10)

來源：考試資料網(wǎng)

1 The exhaust pipe must be gas tight throughout its entire length otherwise（）.

2 Static electricity may be built up by the（）.

3 The boat is stowed on the davit rather than on a cradle with which type of davit?（）

4 Limit switches are used on which davits?（）

5 The bypass valve on a self-contained breathing device should be opened if（）.