Refractory Technology Hot face insulating linings of high purity alumina fused mullite are used, where Highly reducing conditions are involved Presence of iron or silica is harmful All of these Very high temperatures are involved Highly reducing conditions are involved Presence of iron or silica is harmful All of these Very high temperatures are involved ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Grog addition in fireclay during brick manufacture is done to Enhance the strength of fired refractories Impart greater spalling resistance All of these Reduce its shrinkage on heating Enhance the strength of fired refractories Impart greater spalling resistance All of these Reduce its shrinkage on heating ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is a neutral refractory? Silica Graphite Magnesite chrome Magnesia Silica Graphite Magnesite chrome Magnesia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Presence of MgO in alumino-silicate refractories __________ its refractoriness. Increases Does not affect Lowers Either A or B; depends on its quantity Increases Does not affect Lowers Either A or B; depends on its quantity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Firing of refractory brick is done to All of these Form ceramic bonds necessary for development of high crushing strength in the finished product Dehydrate the dried refractory Develop stable mineral forms in them All of these Form ceramic bonds necessary for development of high crushing strength in the finished product Dehydrate the dried refractory Develop stable mineral forms in them ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not an alumino-silicate refractory? Fireclay bricks High alumina bricks Mullite bricks Tar dolomite bricks Fireclay bricks High alumina bricks Mullite bricks Tar dolomite bricks ANSWER DOWNLOAD EXAMIANS APP
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