航海英語液體散裝危險品與IBC規(guī)則單項選擇題每日一練(2019.01.11)

來源：考試資料網(wǎng)

1 What alarm is NOT found on an inert gas system? （）

2 Each inert gas system gas main must have an automatic shut down valve at the outlet of the gas production plant. This valve must close automatically upon（）.

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3 Before welding can be done in a tank that has carried petroleum products，a certificate must be obtained from（）.

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4 A synonym for chloroform is（）.

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5 The number or name of a tank barge shall be（）.

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