Refractory Technology Quartz is Converted to tridymite on firing between 870 to 1470°C Transformed to crystoballite on heating above 1470°C Stable form of silica upto 870°C All of these Converted to tridymite on firing between 870 to 1470°C Transformed to crystoballite on heating above 1470°C Stable form of silica upto 870°C All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory castables are used for All of these Producing monolithic linings Minimising the number of joints in the structure Patch work All of these Producing monolithic linings Minimising the number of joints in the structure Patch work ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silliminite (Al2O₃.SiO₂) refractory, which is a neutral refractory, is not used in Glass melting furnace Pottery furnace Crucibles Gas retorts Glass melting furnace Pottery furnace Crucibles Gas retorts ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ramming masses are used for Obtaining monolithic working faces Repairing construction of various furnace parts Both A & B Neither A nor B Obtaining monolithic working faces Repairing construction of various furnace parts Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Graphite or carbon refractories Should be used in neutral or reducing atmosphere Exhibit high shrinkage on thermal treatment Are not resistant to corrosion by slag Exihibit wetting characteristics Should be used in neutral or reducing atmosphere Exhibit high shrinkage on thermal treatment Are not resistant to corrosion by slag Exihibit wetting characteristics ANSWER DOWNLOAD EXAMIANS APP
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