Refractory Technology Silica bricks are never used for lining the Dome of blast furnace stoves By-product coke ovens Roof of open hearth furnace Beehive coke ovens Dome of blast furnace stoves By-product coke ovens Roof of open hearth furnace Beehive coke ovens ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chromite refractories are used in Both A & B Neither A nor B Between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other Bottom of soaking pits Both A & B Neither A nor B Between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other Bottom of soaking pits ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silicon carbide refractories are used in the Zinc smelting furnace Ceramic recuperators Muffle furnace All of these Zinc smelting furnace Ceramic recuperators Muffle furnace All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 10 to 30% magnesite is added to chromite to produce chrome-magnesite refractories. Magnesite addition is mainly done to improve the __________ of chromite. Crushing strength Refractoriness Spalling resistance Resistance to slag Crushing strength Refractoriness Spalling resistance Resistance to slag ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Rate of slag attack on refractories increases with rise in temperature due to the Decreased viscosity of slag Oxidising condition in the furnace None of these Increased thermal conductivity of brick Decreased viscosity of slag Oxidising condition in the furnace None of these Increased thermal conductivity of brick ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the alumina content in firebricks, its fusion point (refractoriness) Decreases linearly Increases Remains unchanged Decreases Decreases linearly Increases Remains unchanged Decreases ANSWER DOWNLOAD EXAMIANS APP
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