题库考试答案搜索网 > 题目详情
问题题干   答案解析   相关问题   热门问题   最新问题

问题详情

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：2021-08-20 12:40 关键词： 航海出版物

答案解析

D