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A.7.74%~35.31% B.13.5%~88% C.40%~73.5%
A.7.74%~35.31% B.13.5%~88% C.40%~73.5%
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2022-08-02
29
问题
A.7.74%~35.31%B.13.5%~88%C.40%~73.5%D.19%~71%
选项
A.7.74%~35.31%
B.13.5%~88%
C.40%~73.5%
D.19%~71%
答案
D
解析
发生炉煤气的火焰传播极限为:L1=100/[(12.4+6.2)/6.0+(27.3+53.4)/40+0.7/5.0]=19%Lh=100/[(12.4+6.2)/70+(27.3+53.4)/73.5+0.7/15.0]=71%
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本试题收录于:
专业案例动力专业题库公用设备工程师分类
专业案例动力专业
公用设备工程师
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