Refractory Technology Conversion of silica mineral to cristobalite is accompanied by reduction in its Both A & B Neither A nor B Volume Specific gravity Both A & B Neither A nor B Volume Specific gravity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories are dried in the Rotary kilns Sun None of these Tunnel kilns Rotary kilns Sun None of these Tunnel kilns ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ceramic recuperators used for waste heat recovery from high temperature flue gas going out of the furnace is made of Corrundum Silicon carbide Fireclay Siliceous fireclay Corrundum Silicon carbide Fireclay Siliceous fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories Are not attacked by slags, as they are not wetted by melts Do not burn/oxidise, when exposed to air on heating Have extremely low thermal & electrical conductivities Do not resist temperature fluctuations Are not attacked by slags, as they are not wetted by melts Do not burn/oxidise, when exposed to air on heating Have extremely low thermal & electrical conductivities Do not resist temperature fluctuations ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silicon carbide refractories are used in the Muffle furnace Zinc smelting furnace Ceramic recuperators All of these Muffle furnace Zinc smelting furnace Ceramic recuperators All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon bricks are not used in the lining of the Blast furnace hearth Highly chemical resistant equipments Electric furnaces Combustion chamber of blast furnace stoves Blast furnace hearth Highly chemical resistant equipments Electric furnaces Combustion chamber of blast furnace stoves ANSWER DOWNLOAD EXAMIANS APP
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