Refractory Technology Cold crushing strength of fireclay bricks is about __________ kgf/cm². 500-1000 200-400 50-100 100-150 500-1000 200-400 50-100 100-150 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one expands on heating? Neither A nor B Both A & B Fireclay bricks Silica bricks Neither A nor B Both A & B Fireclay bricks Silica bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are not used in the Combustion chamber of B.F. stoves Beehive coke oven By-product coke oven walls Coke oven regenerators Combustion chamber of B.F. stoves Beehive coke oven By-product coke oven walls Coke oven regenerators ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay refractories have Tendency to expand unduly high during firing Poor thermal spalling resistance Very high cost Low co-efficient of thermal expansion Tendency to expand unduly high during firing Poor thermal spalling resistance Very high cost Low co-efficient of thermal expansion ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of ordinary fireclay brick is about 950 kg/cm² . On exposure to a temperature of about 1500°C, its crushing strength may come down to as low as __________ kg/cm² . 250 450 65 150 250 450 65 150 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Crushing strength of a refractory Is unaffected with change in service temperature Decreases with rise in service temperature Decreases with increase in porosity Increases with rise in service temperature Is unaffected with change in service temperature Decreases with rise in service temperature Decreases with increase in porosity Increases with rise in service temperature ANSWER DOWNLOAD EXAMIANS APP
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