Refractory Technology An ideal refractory should have high None of these Shrinkage ability Spalling rate Fusion point None of these Shrinkage ability Spalling rate Fusion point ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Si percentage in silica refractories used in the walls of coke oven is about 60 45 80 95 60 45 80 95 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum alumina content in high alumina refractory can be as high as __________ percent. 70 50 90 30 70 50 90 30 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay refractories have Tendency to expand unduly high during firing Low co-efficient of thermal expansion Poor thermal spalling resistance Very high cost Tendency to expand unduly high during firing Low co-efficient of thermal expansion Poor thermal spalling resistance Very high cost ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica bricks are never used for lining the Roof of open hearth furnace Dome of blast furnace stoves Beehive coke ovens By-product coke ovens Roof of open hearth furnace Dome of blast furnace stoves Beehive coke ovens By-product coke ovens ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Grog addition in fireclay during brick manufacture is done to Reduce its shrinkage on heating Impart greater spalling resistance Enhance the strength of fired refractories All of these Reduce its shrinkage on heating Impart greater spalling resistance Enhance the strength of fired refractories All of these ANSWER DOWNLOAD EXAMIANS APP
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