Refractory Technology With increase in the density of silica refractories, its Spalling resistance reduces Neither A nor B Both A & B Resistance to slag attack increases Spalling resistance reduces Neither A nor B Both A & B Resistance to slag attack increases ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The highest melting pure oxide (m.p. > 3000°C) is Beryllia Thoria Zirconia Alumina Beryllia Thoria Zirconia Alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following does not occur during firing/burning of refractories? Development of stable mineral form Removal of water of hydration Decrease in crushing strength Vitrification Development of stable mineral form Removal of water of hydration Decrease in crushing strength Vitrification ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are not used in the Combustion chamber of B.F. stoves By-product coke oven walls Coke oven regenerators Beehive coke oven Combustion chamber of B.F. stoves By-product coke oven walls Coke oven regenerators Beehive coke oven ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hot metal runner in blast furnace are lined with __________ bricks. Silica Magnesite Carborundum Fireclay Silica Magnesite Carborundum Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An ideal refractory should have high Fusion point Spalling rate None of these Shrinkage ability Fusion point Spalling rate None of these Shrinkage ability ANSWER DOWNLOAD EXAMIANS APP
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