http://www.esafety.cn/blog/wll/66030/index.html

安全生产事故案例分析习题(25)

作者[孙锡云] 发表于[2011-7-29 11:17:00]

安全生产事故案例分析习题(25)

　　某年春，某乡镇化工厂为降低成本，将金属钠储存在塑料袋里，口扎紧，外套麻袋。结果袋中的钠发生爆炸。造成1人死亡，3人受伤，烧毁库房一座，金属钠21吨。

　　一、单项选择题

　　1.以下物质中，不会发生自燃的是_。

　　A.稻草　　B.硝化纤维　　C.棉籽饼　　D.铁砂

　　2.以下选项中，不会发生爆炸的粉尘是_。

　　A.可可粉　　B.铅粉　　C.鱼粉　　D.镁粉

　　二、多项选择题

　　3.以下物质中，属于遇湿易燃物质的有_。

　　A.金属铅　　B.金属钾　　C.碳化钙　　D.氧化铁

　　4.在本次事故中，该单位违反了_等法律、法规。

　　A.《安全生产法》　　B.《职业病防治法》

　　C.《劳动法》    　　D.《危险化学品安全管理条例》

　　三、简答题

　　5.简述为什么袋中的钠会发生爆炸，正确存放钠的方法是什么?

　　6.简述露天堆放的煤堆为什么会发生自燃?

　　参考答案：　　1.D　　2.B　　3.BC　　4.ACD

　　5.金属钠是一种遇水或受潮时，会发生剧烈化学反应，放出大量热与可燃气体，无须明火就能导致爆炸的物质。正确保存金属钠的方法是：必须将其浸在煤油或柴油中，并密封在金属容器中。在本案中，由于所用储存方法无法确保钠与空气和水分隔绝，所以发生爆炸。

　　6.煤块(煤粉)由于表面积大，与空气接触面积大，易吸附空气中的氧气并被氧化而放热。若堆积在一起，热量难以散失，蓄积起来引起升温，达到引燃温度，就会发生自燃现象。

Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

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原创

作者[原创(游客)] 发表于[2016-9-30 13:41:34]
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原创

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原创

作者[原创(游客)] 发表于[2016-9-6 19:26:14]
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