航海英語液化氣體與IGC規(guī)則單項(xiàng)選擇題每日一練(2019.01.23)

來源：考試資料網(wǎng)

1 The amount of LFG that may be loaded into a given tank is determined by（）.

2 The weight of liquefied petroleum gas vapors as compared to air is（）.

3 Each inert gas system must be designed to supply the cargo tanks with a gas，or mixture of gasses，that has an oxygen content by volume of（）.

4 Before starting a gasoline engine on a motorboat，you should make sure for safety that（）.

5 According to the Chemical Data Guide，when burning，the grade B flammable liquid，carbon disulfide produces（）.