Refractory Technology High porosity refractory bricks have All of these Poor heat conductivity & low strength Better thermal spalling resistance Poor resistance to the peneration of molten slag, metal & flue gases All of these Poor heat conductivity & low strength Better thermal spalling resistance Poor resistance to the peneration of molten slag, metal & flue gases ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon bricks are not used in the lining of the Blast furnace hearth Combustion chamber of blast furnace stoves Electric furnaces Highly chemical resistant equipments Blast furnace hearth Combustion chamber of blast furnace stoves Electric furnaces Highly chemical resistant equipments 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 Silicon carbide Corrundum Siliceous fireclay Fireclay Silicon carbide Corrundum Siliceous fireclay Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion temperature of pure silica (SiO₂) is __________ °C. 2800 1715 2570 1350 2800 1715 2570 1350 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An ideal refractory should have high Shrinkage ability Spalling rate Fusion point None of these Shrinkage ability Spalling rate Fusion point None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one contains maximum percentage of Al2O₃ ? Firebrick Aluminous firebrick Magnesite Sillimanite Firebrick Aluminous firebrick Magnesite Sillimanite ANSWER DOWNLOAD EXAMIANS APP
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