Refractory Technology Silica bricks are never used for lining the 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 Roof of open hearth furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion point of an acidic refractory material is Reduced by the addition of basic oxides Not affected by the addition of basic oxides Increased by the addition of basic oxides Not affected by the addition of basic oxides Reduced by the addition of basic oxides Not affected by the addition of basic oxides Increased by the addition of basic oxides Not affected by the addition of basic oxides ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chrome magnesite is not used in the Inner lining of L.D. converter Wear out lining of steel melting furnaces All of these Aluminium melting furnaces Inner lining of L.D. converter Wear out lining of steel melting furnaces All of these Aluminium melting furnaces ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Segar cones are used for the determination of __________ of refractories. Spalling resistance Softening temperature Electrical conductivity Resistance to slag attack Spalling resistance Softening temperature Electrical conductivity Resistance to slag attack ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Insulating refractories should have Both A & B High porosity Low thermal conductivity Neither A nor B Both A & B High porosity Low thermal conductivity Neither A nor B 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
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