Refractory Technology Fireclay refractories have Very high cost Poor thermal spalling resistance Low co-efficient of thermal expansion Tendency to expand unduly high during firing Very high cost Poor thermal spalling resistance Low co-efficient of thermal expansion Tendency to expand unduly high during firing ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is an acidic refractory? Chrome magnesite Fireclay Dolomite Magnesite Chrome magnesite Fireclay Dolomite Magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are not used in the Coke oven regenerators Combustion chamber of B.F. stoves By-product coke oven walls Beehive coke oven Coke oven regenerators Combustion chamber of B.F. stoves By-product coke oven walls Beehive coke oven ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pyrometric cone equivalent (PCE) of a refractory is the measure of its Fusion point Resistance to carbon monoxide attack Spalling resistance Resistance to slag penetration Fusion point Resistance to carbon monoxide attack Spalling resistance Resistance to slag penetration ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum water percentage in refractory mix meant for hand moulding may be as high as __________ percent. 7-12 2-3 14-20 5-7 7-12 2-3 14-20 5-7 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Grog addition in fireclay during brick manufacture is done to 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 Enhance the strength of fired refractories ANSWER DOWNLOAD EXAMIANS APP
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