Refractory Technology Which furnace consumes maximum refractory annually in an integrated steel plant? Soaking pit Coke ovens L.D. converter Blastfurnace Soaking pit Coke ovens L.D. converter Blastfurnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the alumina content in firebricks, its fusion point (refractoriness) Decreases Increases Decreases linearly Remains unchanged Decreases Increases Decreases linearly Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture? Chemically prepared foam Sand Cork Saw dust Chemically prepared foam Sand Cork Saw dust ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness of a typical silica brick corresponds to Segar cone number, '32', which is equivalent to a temperature of __________ °C. 1915 1380 1520 1710 1915 1380 1520 1710 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High porosity refractory bricks have Better thermal spalling resistance Poor heat conductivity & low strength Poor resistance to the peneration of molten slag, metal & flue gases All of these Better thermal spalling resistance Poor heat conductivity & low strength Poor resistance to the peneration of molten slag, metal & flue gases All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum safe working temperature for fireclay bricks is about __________ °C. 1450 1550 1150 1300 1450 1550 1150 1300 ANSWER DOWNLOAD EXAMIANS APP