Refractory Technology Refractoriness of a typical silica brick corresponds to Segar cone number, '32', which is equivalent to a temperature of __________ °C. 1380 1710 1520 1915 1380 1710 1520 1915 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ bricks should not be used in oxidising atmosphere. Tar dolomite Carbon Fireclay Silica Tar dolomite Carbon Fireclay Silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of ordinary fireclay brick is about 950 kg/cm² . On exposure to a temperature of about 1500°C, its crushing strength may come down to as low as __________ kg/cm² . 150 250 65 450 150 250 65 450 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion point of an acidic refractory material is Increased by the addition of basic oxides Not affected by the addition of basic oxides Reduced by the addition of basic oxides Not affected by the addition of basic oxides Increased by the addition of basic oxides Not affected by the addition of basic oxides Reduced by the addition of basic oxides Not affected by the addition of basic oxides ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Most Cermets, which normally have high thermal conductivity and high thermal shock resistance, comprises of ceramic & metallic components of __________ percent respectively. 60 and 40 80 and 20 20 and 80 50 and 50 60 and 40 80 and 20 20 and 80 50 and 50 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High density refractory bricks have lower Slag penetration resistance Thermal conductivity Fusion point Spalling resistance Slag penetration resistance Thermal conductivity Fusion point Spalling resistance ANSWER DOWNLOAD EXAMIANS APP