航海英語燃燒與爆炸單項(xiàng)選擇題每日一練(2019.01.13)

來源：考試資料網(wǎng)

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

2 During a training exercise a submarine indicating that a torpedo has been fired will send up smoke from a float. The smoke’s color will be（）.

3 Convection spreads a fire by（）.

4 A class C fire would be burning（）.

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