【判断题】【消耗次数:1】
气体混合物的爆炸极限一般可用可燃气体或蒸气在混合物中的重量百分比来表示。
A、正确
B、错误
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相关题目
【单选题】 下列哪项不是影响混合物爆炸极限的因素?
①  A、混合物的温度、压力
②  B、混合物的多少
③  C、混合物的含氧量
④  D、容器的大小
【判断题】 混合物的爆炸极限不是固定的,而是随混合物的温度、压力等变化的。
①  A、正确
②  B、错误
【单选题】 爆炸性混合物爆炸的威力,取决于可燃物的( )。
①  浓度
②  温度
③  压强
④  流量
【单选题】 爆炸极限是指能引起爆炸性混合物爆炸的( )。
①  最低浓度
②  最高浓度
③  浓度范围
④  浓度值
【判断题】 可燃性混合物的爆炸下限越低,爆炸极限范围越宽,其爆炸危险性越小。
①  正确
②  错误
【判断题】 对于类别2遇水放出易燃气体的物质和混合物使用信号词“警告”。
①  A、正确
②  B、错误
【单选题】 吸收操作是依据( )不同,对气体混合物进行分离的。
①  溶解度
②  密度
③  挥发度
④  液体对溶质的吸着
【单选题】 用填料吸收塔分离某气体混合物,以下说法正确的是( )。
①  填料因子相同,气液两相流动参数增大,液泛气速减小
②  气液两相流动参数相同,填料因子增大,液泛气速增大
③  气液两相流动参数相同,填料因子减小,液泛气速减小
④  填料因子相同,气液两相流动参数减小,液泛气速减小
【单选题】 可燃气体爆炸属于( )?。
①  物理爆炸
②  化学爆炸
③  气体爆炸
④  蒸气爆炸
【判断题】 闪点是指加热沥青至挥发出的可燃气体和空气的混合物,在规定条件下与火焰接触,初次闪火时的沥青温度。( )
①  正确
②  错误
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