Refractory Technology High alumina refractory compared to fireclay bricks have Less resistance to slag attack Low refractoriness Less load bearing capacity High resistance to thermal shock and creep Less resistance to slag attack Low refractoriness Less load bearing capacity High resistance to thermal shock and creep ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is a neutral refractory? Magnesia Silica Magnesite chrome Graphite Magnesia Silica Magnesite chrome Graphite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal diffusivity of a refractory brick is high, when its __________ is high. Thermal conductivity Specific heat None of these Density Thermal conductivity Specific heat None of these Density ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Rate of slag attack on refractories increases with rise in temperature due to the Oxidising condition in the furnace None of these Increased thermal conductivity of brick Decreased viscosity of slag Oxidising condition in the furnace None of these Increased thermal conductivity of brick Decreased viscosity of slag ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chrome magnesite is not used in the Wear out lining of steel melting furnaces All of these Aluminium melting furnaces Inner lining of L.D. converter Wear out lining of steel melting furnaces All of these Aluminium melting furnaces Inner lining of L.D. converter ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Quartz is All of these Stable form of silica upto 870°C Converted to tridymite on firing between 870 to 1470°C Transformed to crystoballite on heating above 1470°C All of these Stable form of silica upto 870°C Converted to tridymite on firing between 870 to 1470°C Transformed to crystoballite on heating above 1470°C ANSWER DOWNLOAD EXAMIANS APP
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