航海英語液化氣體與IGC規(guī)則單項選擇題每日一練(2019.07.30)

來源：考試資料網(wǎng)

1 Compared to the amount of concentrated foam liquid used，the amount of low expansion mechanical foam produced is（）.

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2 The vapor pressure of a substance（）.

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3 What is the proper first aid for LPG in the eye? （）

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4 The primary hazard of liquefied petroleum gas and liquefied natural gas is（）.

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5 It should be noted（）the use of synthetic mooring ropes able to produce sparks by their manipulation is absolutely forbidden on board petroleum tankers and LPG or LNG carriers，or any vessels carrying inflammable substances.

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