Refractory Technology 10 to 30% magnesite is added to chromite to produce chrome-magnesite refractories. Magnesite addition is mainly done to improve the __________ of chromite. Resistance to slag Crushing strength Spalling resistance Refractoriness Resistance to slag Crushing strength Spalling resistance Refractoriness ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one contains maximum percentage of Al2O₃ ? Firebrick Sillimanite Magnesite Aluminous firebrick Firebrick Sillimanite Magnesite Aluminous firebrick ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ nozzles are used in continuous casting of steel, Zircon Thoria Beryllia Carborundum Zircon Thoria Beryllia Carborundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Si percentage in silica refractories used in the walls of coke oven is about 60 45 95 80 60 45 95 80 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Sillimanite is a __________ refractory. Neutral High alumina Basic Insulating Neutral High alumina Basic Insulating ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following bricks has the most close values of RUL and PCE? High alumina bricks Fireclay bricks Tar dolomite bricks Silica bricks High alumina bricks Fireclay bricks Tar dolomite bricks Silica bricks ANSWER DOWNLOAD EXAMIANS APP
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