【单选题】
高空施焊时必须使用标准的___,戴好符合规定的安全帽。
A. 防火焊具
B. 防火安全带
C. 工作服
D. 防火工具
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答案
B
解析
暂无解析
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【单选题】
严禁将施焊把线绕在___或搭在背上。
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B. 工件上
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【单选题】
焊接作业时,___将施焊把线绕在身上或搭在背上。
A. 不能
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D. 严禁
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施焊完成或下班时必须拉闸断电,要留有充分时间观察,确认___后,方可离去。
A. 周围无易爆物
B. 周围无易燃物
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D. 无复燃的危险
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电焊时严禁借用金属管道、金属脚手架、结构钢筋等金属物搭接代替___使用。
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交流焊机二次线空载电压不得超过___V。
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焊机一次侧电源线长度最大不得超过___m。
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C. 15
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焊机二次侧电源线长度最大不得超过___m。
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在焊接作业时,氧气瓶与乙炔瓶的距离不得小于___m。
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电焊工接触到的主要职业危害为___
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火灾等级划分为几类?___
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动火区域划分为___级。
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易燃物品露天仓库四周内应有不小于___米的平坦空地作为消防通道。
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堆料场内确实需要架设用电线路,架空线路与露天易燃物堆垛的最小水平距离,不应小于电线杆高度的___倍。
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施工现场动火证由___审批。
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照明灯具与易燃堆垛间至少保持___m的距离?
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禁火作业区与生活区的距离应当不少于___m。
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易燃的废品集中场地距离在建的建筑物和其他区域应当不小于___。
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气焊使用的乙炔气瓶应当放置在距明火___米以外的地方。
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电焊导线中间不应有接头,若有接头,接头处应远离易燃易爆物品___米以外。
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一般临时设施区域,每100m2配备___个10L灭火器。
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适用于扑救易燃气体﹑液体和电器设备火灾的是___灭火剂。
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遇___级及以上强风,严禁露天起重吊装和高处作业。
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焊接气瓶除了由瓶体、瓶阀、瓶帽、低座、防震圈组成外,一般还有___。
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