【判断题】
单位发生火灾时，应当立即实施灭火和应急疏散预案，务必做到及
A. 对
B. 错
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答案
A
解析
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运行安全要求反应器在设计的压力和温度下进行.尤其要注意温度上升很快的情况、因为加氢反应是强放热 反应.当温升很快时有可能形成局部热点而发生非接触式反应，失去控制造成严重后果
A. 对
B. 错
【判断题】
乙烯装置冷箱结构复杂，流道尺寸小，容易堵塞，而且检修和清洗困难、因此所处理的物料应洁净或预先净制。另外，由于隔板和翅片均由蒲铝板制成，一旦腐蚀造成内漏很难发现和检修，故要求换热介质对铝材无腐蚀性。正确答案、
A. 对
B. 错
【判断题】
如果检修时人要进入用氮气置换后的设备内工作，则事先需用压缩风进行吹扫，将氮气驱净，待氧气与有毒有害气体含量分析合格后方可进入。否则人进入设备后会发生因氮气窒息而死亡
A. 对
B. 错
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