A pumproom is suspected of accumulating gases after a ventilation machinery breakdown. Where should the combustible gas indicator case be placed when testing the pumproom atmosphere for combustible gases? ()

A . In the lower level of the pumproom B . In the middle level of the pumproom C . In the upper level of the pumproom D . On the deck outside the pumproom

时间:2022-11-04 15:44:02 所属题库:航海出版物题库

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