Refractory Technology Addition of zircon to silica refractory brick improves its Neither A nor B Neither A nor B Resistance to slag attack Crushing strength Neither A nor B Neither A nor B Resistance to slag attack Crushing strength ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not a neutral refractory? Chromite Silicon carbide Magnesite Graphite Chromite Silicon carbide Magnesite Graphite 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 . 65 450 250 150 65 450 250 150 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Grog addition in fireclay during brick manufacture is done to Impart greater spalling resistance Reduce its shrinkage on heating All of these Enhance the strength of fired refractories Impart greater spalling resistance Reduce its shrinkage on heating All of these Enhance the strength of fired refractories ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) is the most important property for the refractory bricks None of these Used in the roof of the furnace At the hearth bottom of the furnace on which stock is placed Used for furnace insulation None of these Used in the roof of the furnace At the hearth bottom of the furnace on which stock is placed Used for furnace insulation 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 Silica bricks Tar dolomite bricks High alumina bricks Fireclay bricks Silica bricks Tar dolomite bricks ANSWER DOWNLOAD EXAMIANS APP
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