相关试题
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第359题：裂解炉点火时，要保证炉膛的正压、防止负压回火伤人
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第360题:劳动防护用品分为特种劳动防护用品和一般劳动防护用品
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第361题：物质的燃点越低，越不容易引起火灾
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第362题：切换过滤器时应该先投用备用过滤器.再切出原运行过滤器防止憋压泄露
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第363题：使用电钻或手待电动工具时必须戴绝缘手套，可以不穿绝缘鞋
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第364题：生产规模小、危险因素少的生产经营单位，综合应急预案和专项应急预案可以合并编写
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第365题:裂解气大阀防焦蒸汽停用的后果为，导致裂解气大阀阀道内焦炭多，裂解气大阀无法关严
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第366题转动设备上所用的密封一般都是动密封
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第367题：在乙烯装置紧急停车或部分设备紧急停车时，为了保证人身和装置安全，只需要将可燃气体排放置火炬即可，不需要通入如氮气、蒸汽等不燃性气体
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第368題：变换法兰大量泄漏一般发生在系统运行阶段
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第369题：裂解炉点火前要适当置换炉膛并用测爆仪检测
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第370题：在碳三加氢反应器重新投用时，在进料后方可缓慢通入氢气。进料前应检查氢气注入阀的上游阀及旁路阀是否关严，以防止注入阀内漏造成氢气过量注入而导致飞温
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第371题：防毒工作可以采取隔离的方法，也可以采取敞幵通风的方法
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第372題：水污染防冶应当坚持预防为主、防治结合、综合治理的原则
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第373题：膨胀机连锁停车后，润滑油系统也连锁停车
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第374题：选用安全帽、安全带、工作服是为了防止伤亡事故的发生
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第375题：两种可燃液体混合物的闪点一般高于这两种液体闪点的平均值
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第376题：生产经营单位的应急预案由生产经营单位主要负责人签署公布后再进行评审或者论证
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第377题:离心泵的气蚀和气缚是由相同的原因造成的
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第378题:锅炉和压力容器破坏的主要原因之一是存在裂纹缺陷
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第379题:紫铜垫片经过退火处理后，可不再进行脱脂处理
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第380题；前加氢流程的催化剂在运行初期，虽然催化剂活性高，即使升温速率快，也不会造成反应器床层“飞温"
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第381 接触危险化学品的废包装物应作为危险废物处置
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第382题:盲板应加在有物料来源的阀门后部法兰处、盲板一侧有垫片即可，并拧紧螺栓以保证严密性
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第383题：化工系统火炬必须一直燃烧或处于随时可燃的备用状态
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第384题：碳二加氢反应器备用台床层发生飞温，原因可能是床层漏入氢气
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第385题：人身防护一般不包括手部的防护
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第386题：发现火灾隐患和消防安全违法行为可拨打96119电话，向当地公安消防部门举报
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第387题:当同一建筑物内分隔为不同火灾危险性类别的房间时，中间隔墙应为防火墙
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第388题：气瓶应存放在制定地点并悬挂警示标识，氧气瓶、乙炔瓶或易燃气瓶不得混放
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第389题:投用高压锅炉给水管线时，需要防管线或阀门烫伤
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第390题:生产经营单位应当制定本单位的应急预案演练计划，根据本单位的事故预防重点，每半年至少组织一次现场处置方案演练
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第391题：建筑物的安全疏散门应向外开启。甲、乙、丙类房间的安全疏散门不应少于3个
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第392题：从事易燃易爆作业的人员应穿含金属纤维的棉布工作服，以防静电危害
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第393題：裂解炉对流段原料预热管线泄露，以及炉膛风量不足，，会造成裂解炉烟囱冒黑烟
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第394题：为了减少氮气用量串联的设备可以一次置换，但并联的设备必须单独置换
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第395题:火炬下火雨是排放气体中带液燃烧所造成的
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第396题:操作人员对任何不利于压力容器安全操作的行为有权拒绝执行
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第397题:安全护目镜用于预防高能量的飞溅物和灰尘
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第398题:使用危险化学品的单位可以用货币替代劳动防护用品
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