【判断题】
第420题：丙烯制冷压缩机在低、中速暖机期间，如果排蒸汽温度过高，可通过降速或调整真空度来调整
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相关试题
【判断题】
第421题：生产经营单位风险种类多、可能发生多种事故类型的，可以不用编制本单位的综合应急预案
【判断题】
第422题：防护用品必须严格保证质量、安全可靠、但可以不用舒适和方便
【判断题】
第423题：裂解炉在正常运行过程中，要防止炉管温度的大幅度波动，炉管温度的大幅度波动会使炉管表面的焦块松动脱落
【判断题】
第424题：报废设备测爆合格就可以出厂
【判断题】
第425题：裂解炉高压蒸汽温度过高主要危害为，超过高压蒸汽管线最高耐温，破坏管线
【判断题】
第426题：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，落实现场监护人，在确认无火灾、爆炸危险后方可动火施工
【判断题】
第427题：急冷油温度低会造成稀释蒸汽发生量减少，补入中压蒸汽加大，排污量的增大对环境造成影响
【判断题】
第428题：改进工艺、加强通风、密闭操作、水式作业等都是防尘的有效方法
【判断题】
第429题：火灾扑灭后，起火单位应当保护现场，接受事故调查，如实提供火灾事故的情况，协助公安消防机构调查火灾原因
【判断题】
第430题：在工厂临时参观的时候可以不必穿戴防护服装
【判断题】
第431题：汽油气提塔和凝液气提塔在检修中清理出来的低聚物要及时转运或者用水不间断地冲洗降温，防止自燃
【判断题】
第432题：在铝炉给水中加入磷酸钠的目的是为了避免汽包和废热锅炉列管的结垢
【判断题】
第433题：综合演练通常成立演练领导小组，下设策划组、执行组、保障组、评估组等专业工作组。相据演练规模大小，其组织机构可进行调整
【判断题】
第434题：裂解炉区着火后，消防水与燃烧物接触汽化形成的“蒸汽幕”，具有隔离、窒熄作用
【判断题】
第435题：在生产过程中，控制尘毒危害的最重要的方法是使用个人防护用品
【判断题】
第436题：石化生产中存在诸多不安全因素，事故多，损失大
【判断题】
第437题：碳二、碳三加氢催化剂，在打开反应器前，不需要进行氧化处理，便可以确保安全
【判断题】
第438题：防止静电累计消除静电危害，采用静电接地时简易可行，十分有效的方法
【判断题】
第439题：脱丁烷塔塔釜液位过高或过低，都会造成再沸器容易结焦而使运行周期缩短
【判断题】
第440题：二氧化碳的伤害途径为呼吸道吸入
【判断题】
第442题：安全色中黄色一般用作警告色
【判断题】
第443题：任何单位和成年人都有参加有组织的灭火工作的义务
【判断题】
第444题：反应器设置超温连锁是为了防止因为超温而发生爆炸事故
【判断题】
第445题：生产经营单位不得采购和使用无安全标志的特种劳动防护用品
【判断题】
第446题：禁止在粉尘作业现场进食、抽烟、饮水等以减少粉尘危害
【判断题】
第447题：离心泵长时间在小流量情况下运行会使部分液体汽化，吸入液体发生困难
【判断题】
第448题：球形外壳内的爆炸压力高于其他形状外壳的爆炸压力
【判断题】
第449题：受突发事件影响地区的生产经营单位应当根据本地区遭受损失的情况，制定救助、补偿、抚慰、抚恤、安置等善后工作计划并组织实施，妥善解决因处置突发事件引发的矛盾和纠纷
【判断题】
第450题：因为氨是极易被水吸收的，所以发生跑氨可以大量水对其进行稀释
【判断题】
第451题：在其它条件一定的情况下，压力容器的工作压力越高，其直径越大
【判断题】
第452题：火炬管网压力过低，会造成火炬气回收压缩机入口低压连锁
【判断题】
第453题：烘炉的目的是力了缓慢地除去炉墙在砌筑过程中所积存的水分，并使耐火水泥得到充分的烧结
【判断题】
第454题：电机运转过程中的噪音是由交变电流相互作用而发生的
【判断题】
第455题：裂解炉过剩空气，会造成辐射段横跨温度升高，并且可能会造成裂解炉对流段炉管过热
【判断题】
第456题：碳三加氢反应为放热反应，必须严格控制温度，防止飞温
【判断题】
第457题：国家对在防震减灾工作中做出突出贡献的单位和个人，按照国家有关规定给予表彰，不必奖励
【判断题】
第458题：根据重大事故发生的特点，应急救援的特点是行动必须做到迅速、准确和有效，应急救援的首要任务是抢救受害人员
【判断题】
第459题：硫化氢、一氧化碳着火时，如不能切断气源则不允许熄灭正在燃烧的气体
【判断题】
第460题：从事化工作业人员必须佩带防护镜或防护面罩
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