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

安全生产技术第四章习题(10)

作者[孙锡云] 发表于[2012-7-26 17:41:00]

安全生产技术第四章习题(10)

(第四章 防火防爆安全技术)

一、单选题:

1、 已知乙炔在氧气中的燃烧反应式:

2C2H2+502 = 4C02+2H20+Q则乙炔在氧气中完全反应的浓度是____

    A.71.4     B.28.6     C.20.0     D.12.1

     标准答案:b 

2  H2在空气中完全反应的浓度是____

   A 29.48      B 14.74       C  66.7     D.   16.37

   标准答案:a   

3 C3H8 在氧气中完全反应的浓度是____

   A.32.42       B.2.75      C.16.7       D.4.01

  标准答案:c   

4、 一氧化碳的燃烧反应式是:2CO+O2+3.76N2=2C02+3.76N2

Po = 0.1MPaTo=27℃T=2411K,则一氧化碳与空气混合物的最大爆炸压力是____ MPa

  A.0.43       B.0.69        C.0.75         D.0.81

   标准答案:b  

5、 乙烷的燃烧反应式是:C2H6+3.502 = 2C02+2H20

按经验公式:           100

            L = ————————

                    4.76 (N-1)+1

 

            100×100

   L =  ——————

            4.76 N+4

则乙烷在空气中的爆炸下限是____和上限是____

     A3.38 %       10.7 %             B 4.92 %      5.67 %

C 5.86 %      9.64 %             D.  2.16%       17.46 %

   你的答案:  标准答案:a         本题分数: 12.50

6、 某种天然气的组成如下:甲烷80%,乙烷15%,丙烷4%,丁烷1%。各组分相应的爆炸下限分别为5%,3.22%,2.37%和1.86%,则天然气的爆炸下限为____

   A.6.37 %        B.7.86 %       C.3.45 %        D.4.37 %

     标准答案:d  

二、多选题:

7  粉尘爆炸危险性的主要特征参数是____

   A.爆炸极限       B.最小点火能量      C.最低着火温度     D.  粉尘分散度

E. 粉尘爆炸压力及压力上升速率

  标准答案:a, b, c, e  

8、 以下有关爆炸极限范围说法正确的是____

  A.粉尘粒度越细,分散度越高,爆炸极限范围越小

  B.可燃气体和氧的含量越大,爆炸极限范围越大

C.火源强度、初始温度越高,爆炸极限范围越大

D.  湿度越高,爆炸极限范围越大

E. 惰性粉尘及灰分越多,爆炸极限范围越小

     标准答案:b, c, e     

9  控制产生粉尘爆炸的主要技术措施是____

   A.惰化防护     B.消除粉尘      C.密闭、通风      D.  适当增湿

E. 采用抑爆装置

     标准答案:a, b, d, e

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原创

作者[原创(游客)] 发表于[2016-9-30 10:06:55]
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原创

作者[原创(游客)] 发表于[2016-9-28 15:33:14]
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原创

作者[原创(游客)] 发表于[2016-9-6 16:00:00]
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