Refractory Technology Which brick undergoes maximum shrinkage on drying? Tar bonded dolomite bricks Magnesite bricks Chromite bricks Fireclay bricks Tar bonded dolomite bricks Magnesite bricks Chromite bricks Fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are used in the All of these Chimney linings Furnaces allowed to cool frequently Flues All of these Chimney linings Furnaces allowed to cool frequently Flues ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Alumina-graphite bricks are used for lining the Continuous casting systems Both A & B Neither A nor B Slide gate in teeming laddies Continuous casting systems Both A & B Neither A nor B Slide gate in teeming laddies 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 Enhance the strength of fired refractories All of these Impart greater spalling resistance Reduce its shrinkage on heating Enhance the strength of fired refractories All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thoria is an expensive refractory material and is radioactive in nature. Thorium oxide is used in the manufacture of Insulating bricks Segar cones Muffles for muffle furnaces Crucibles used for melting of high purity metals Insulating bricks Segar cones Muffles for muffle furnaces Crucibles used for melting of high purity metals ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High porosity refractory bricks have All of these Better thermal spalling resistance Poor heat conductivity & low strength Poor resistance to the peneration of molten slag, metal & flue gases All of these Better thermal spalling resistance Poor heat conductivity & low strength Poor resistance to the peneration of molten slag, metal & flue gases ANSWER DOWNLOAD EXAMIANS APP
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