Refractory Technology Silliminite (Al2O₃.SiO₂) refractory, which is a neutral refractory, is not used in Crucibles Pottery furnace Gas retorts Glass melting furnace Crucibles Pottery furnace Gas retorts Glass melting furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories Have extremely low thermal & electrical conductivities Are not attacked by slags, as they are not wetted by melts Do not resist temperature fluctuations Do not burn/oxidise, when exposed to air on heating Have extremely low thermal & electrical conductivities Are not attacked by slags, as they are not wetted by melts Do not resist temperature fluctuations Do not burn/oxidise, when exposed to air on heating ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Skull is not formed on the carbon blocks in the hearth of a blast furnace, when it becomes cold, becaus of its Non-wetting characteristic High thermal conductivity None of these High crushing strength Non-wetting characteristic High thermal conductivity None of these High crushing strength ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High alumina refractories are used in the All of these Electric arc furnace roof Glass melting furnaces Dome of blast furnace stoves All of these Electric arc furnace roof Glass melting furnaces Dome of blast furnace stoves ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which brick undergoes maximum shrinkage on drying? Chromite bricks Fireclay bricks Tar bonded dolomite bricks Magnesite bricks Chromite bricks Fireclay bricks Tar bonded dolomite bricks Magnesite bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory materials are never used in the construction of Pressure vessels Segar cones Ovens & retorts Orton cones Pressure vessels Segar cones Ovens & retorts Orton cones ANSWER DOWNLOAD EXAMIANS APP
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