航海英語燃燒與爆炸單項(xiàng)選擇題每日一練(2019.01.06)

來源：考試資料網(wǎng)

1 A cutoff valve in the fire-main system of a ship may be closed to protect the portion of the system on an exposed deck from（）.

2 Blocking open or removing fire dampers can cause（）.

3 A fire starting by spontaneous combustion can be expected in which condition?（）.

4 A carburetor is required to have a safety device called a(n)（）.

5 During the required periodic abandon ship drill aboard a ship，each person not assigned duties in the muster list is（）.