A .60mm
B .80mm
C .25mm
[单选题]焦炭经筛分后全焦中冶金焦的产率达到()%以上。A .60B .70C .80D .95
[填空题] 焦炭粒度大于()的焦炭称为冶金焦。
[单选题]焦炭粒度大于()冶金焦。A .25mmB .40mmC .60mm
[单选题]焦炭粒度大于()叫冶金焦。A .10mmB .25mmC .40mmD .60mm
[单选题]冶金焦炭是指大于()的焦炭。A .25mmB .40mmC .60mmD .80mm
[判断题] 焦炭在筛焦楼内过筛后分出冶金焦。A . 正确B . 错误
[单选题]冶金焦炭质量标准规定合格冶金焦的灰分()%。A .<12.0B .<13.0C .<15.0
[判断题] 粒度40mm的焦炭叫冶金焦。A . 正确B . 错误
[单选题]用于高炉炼铁大于()的焦炭即为冶金焦A .25mmB .20mmC .15mmD . D.40mm
[单选题]焦粉含量是指冶金焦中小于()mm粒级焦炭占的百分数。A . 25B . 40C . 60D . 10