【单选题】
淹塔是由于___液体充满了整个降液管，而使上下塔板的液体连成一体，分馏效果被破坏。
A. 液相负荷过小
B. 气相负荷过小
C. 液相负荷过大
D. 气相负荷过大
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答案
C
解析
暂无解析
相关试题
【单选题】
硫化氢在低浓度时，臭鸡蛋味的增强与浓度的升高成正比，但浓度超过___左右之后，浓度继续升高而臭鸡蛋味反而减弱，以至不能察觉。
A. 10mg/m3
B. 100mg/m3
C. 500mg/m3
D. 1000mg/m3
【单选题】
用火化验分析标准中，爆炸下限小于4％的可燃气体，其可燃物含量小于或等于( )为合格；爆炸下限大于或等于4％的可燃气体，其可燃物含量小于或等于( )为合格。___
A. 0.2％ 0.5％
B. 0.3％ 0.5％
C. 0.5％ 0.5％
D. 0.5％ 0.2％
【单选题】
在卧室内听到外面发生火灾的报警后，如感觉房门发热，这时正确的做法是___
A. 迅速打开房门，快速冲出逃生
B. 用衣物等封堵门缝，设法从窗户逃生或等待救援
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【单选题】
某容器中的混合气体含有甲烷、乙烷。甲烷的爆炸下限为5.0%，上限为15.0%；乙烷的爆炸下限为2.9%，上限为13.0%。动火环境中可燃气体的浓度最高不得超过___
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【单选题】
石油化工装置检维修涉及大量动火作业，为确保动火作业安全，应落实有关安全措施。下列关于动火作业安全措施的说法中，错误的是___
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下列关于进设备作业监护人的职责论述中，不正确的是___。
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【单选题】
在设备内进行检修作业，要求有足够的照明，设备内照明电压应不大于（ ）,在潮湿容器，狭小容器内作业应小于等于（ ），灯具及电动工具必须符合防潮,防爆等安全要求。___
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【单选题】
以下说法正确的是___
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【单选题】
下列关于换热器的操作正确的是___
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B. 设计压力；10~15%
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