【单选题】
火灾时具备防排烟功能的应及时启动 以便尽快排出烟雾___？[单选题]
A. 空调送风
B. 防排烟风机
C. 加压送风机
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答案
B
解析
暂无解析
相关试题
【单选题】
烟头中心温度可达___，它超过了棉、麻、毛织物、纸张、家具等可燃物的燃点，若乱扔烟头接触到这些可燃物，容易引起燃烧、甚至酿成火灾？[单选题]
A. 100-200℃
B. 400-500℃
C. 700-800℃
【单选题】
禁止在具有火灾、爆炸危险的场所使用明火，因特殊情况需要进行电、气焊等明火作业的，动火部门和人员应当按照单位的用火管理制度办理审批手续，落实___，在确认无火灾、爆炸危险后方可动火施工？[单选题]
A. 警示标志
B. 灭火器材
C. 现场监护人
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