Refractory Technology Because of its very high refractoriness of the order of __________ °C, silicon carbide refractories are used in zinc smelting furnace, muffle furnace and for supporting the wares in tunnel kilns. 2400 2200 1800 2700 2400 2200 1800 2700 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Zirconia refractories are not used in Furnaces subjected to fluctuating temperature Making sheaths for thermocouple Lining high temperature ceramic kilns High frequency induction furnaces in the form of inductors Furnaces subjected to fluctuating temperature Making sheaths for thermocouple Lining high temperature ceramic kilns High frequency induction furnaces in the form of inductors ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the Corrosion by layer of slag Washing action of metal Neither A nor B Both A & B Corrosion by layer of slag Washing action of metal Neither A nor B Both A & B 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 Fireclay Siliceous fireclay Silicon carbide Corrundum Fireclay Siliceous fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carborundum used for making crucibles for melting non-ferrous metals is chemically Silicon nitride Silicon carbide Crystalline magnesia Zirconium sulphate Silicon nitride Silicon carbide Crystalline magnesia Zirconium sulphate ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of a refractory does not depend upon its Composition Firing temperature Texture Shape Composition Firing temperature Texture Shape ANSWER DOWNLOAD EXAMIANS APP
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