Refractory Technology Thermal diffusivity of a refractory brick is high, when its __________ is high. Density None of these Thermal conductivity Specific heat Density None of these Thermal conductivity Specific heat ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology In panel test for spalling resistance, the average face temperature of panel assembly is maintained at __________ °C for 24 hours. 1600 2000 1000 700 1600 2000 1000 700 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica bricks have low spalling resistance below 600°C, due to its High co-efficient of expansion upto this temperature Very high thermal conductivity Low refractoriness High thermal diffusivity High co-efficient of expansion upto this temperature Very high thermal conductivity Low refractoriness High thermal diffusivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High alumina refractories are used in the Dome of blast furnace stoves All of these Glass melting furnaces Electric arc furnace roof Dome of blast furnace stoves All of these Glass melting furnaces Electric arc furnace roof ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Segar cones are used for the determination of __________ of refractories. Spalling resistance Electrical conductivity Softening temperature Resistance to slag attack Spalling resistance Electrical conductivity Softening temperature Resistance to slag attack ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is a basic refractory? None of these Chrome magnesite Silica Fireclay None of these Chrome magnesite Silica Fireclay ANSWER DOWNLOAD EXAMIANS APP
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