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. 2200 2400 1800 2700 2200 2400 1800 2700 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 'Super refractories' are made from pure Borides Nitrides Oxides Carbides Borides Nitrides Oxides Carbides ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ nozzles are used in continuous casting of steel, Thoria Zircon Beryllia Carborundum Thoria Zircon Beryllia Carborundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is required in an insulating refractory? Neither A nor B Both A & B High thermal conductivity Low porosity Neither A nor B Both A & B High thermal conductivity Low porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of ordinary fireclay brick is about 950 kg/cm² . On exposure to a temperature of about 1500°C, its crushing strength may come down to as low as __________ kg/cm² . 450 150 65 250 450 150 65 250 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which refractory must have controlled atmosphere (temperature and humidity) for its safe storage? Tar bonded dolomite bricks Magnesite bricks Fireclay bricks Mullite bricks Tar bonded dolomite bricks Magnesite bricks Fireclay bricks Mullite bricks ANSWER DOWNLOAD EXAMIANS APP
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