Refractory Technology Quartz is Transformed to crystoballite on heating above 1470°C Converted to tridymite on firing between 870 to 1470°C Stable form of silica upto 870°C All of these Transformed to crystoballite on heating above 1470°C Converted to tridymite on firing between 870 to 1470°C Stable form of silica upto 870°C All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Graphite or carbon refractories Exihibit wetting characteristics Exhibit high shrinkage on thermal treatment Are not resistant to corrosion by slag Should be used in neutral or reducing atmosphere Exihibit wetting characteristics Exhibit high shrinkage on thermal treatment Are not resistant to corrosion by slag Should be used in neutral or reducing atmosphere ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon bricks are not used in the lining of the Blast furnace hearth Combustion chamber of blast furnace stoves Highly chemical resistant equipments Electric furnaces Blast furnace hearth Combustion chamber of blast furnace stoves Highly chemical resistant equipments Electric furnaces ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower part of hot metal mixer are lined with __________ bricks. Carborundum Superduty fireclay Silica High alumina Carborundum Superduty fireclay Silica High alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase refractory contains mainly Al2O₃ SiO₂ MgO CaO Al2O₃ SiO₂ MgO CaO ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which property is important for bricks used in the combustion chamber & dome of blast furnace stoves? High resistance to spalling High refractoriness All of these High strength and density High resistance to spalling High refractoriness All of these High strength and density ANSWER DOWNLOAD EXAMIANS APP
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