Refractory Technology Which is required in an insulating refractory? High thermal conductivity Both A & B Neither A nor B Low porosity High thermal conductivity Both A & B Neither A nor B Low porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology silicon carbide refractories have very low None of these Thermal conductivity Resistance to thermal shock Refractoriness (< 1700°C) None of these Thermal conductivity Resistance to thermal shock Refractoriness (< 1700°C) ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chrome magnesite brick is not used for lining the Hearth of soaking pits Burning zone of limestone rotary kilns Bottom hearth of reheating furnace Coke oven regenerator Hearth of soaking pits Burning zone of limestone rotary kilns Bottom hearth of reheating furnace Coke oven regenerator ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum alumina content in high alumina refractory can be as high as __________ percent. 30 90 50 70 30 90 50 70 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Colour of fireclay bricks is Light buff to reddish buff None of these Black Yellow Light buff to reddish buff None of these Black Yellow ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion temperature of pure silica (SiO₂) is __________ °C. 1350 1715 2570 2800 1350 1715 2570 2800 ANSWER DOWNLOAD EXAMIANS APP
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