Refractory Technology Which of the following does not occur during firing/burning of refractories? Development of stable mineral form Decrease in crushing strength Vitrification Removal of water of hydration Development of stable mineral form Decrease in crushing strength Vitrification Removal of water of hydration ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Segar cones are used for the determination of __________ of refractories. Resistance to slag attack Spalling resistance Electrical conductivity Softening temperature Resistance to slag attack Spalling resistance Electrical conductivity Softening temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Except __________ , all other refractories are bad conductors of electricity (i.e, have low electrical conductivity). Chromite Graphite Carborundum Fireclay Chromite Graphite Carborundum Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pure bauxite is the best raw material for the manufacture of high alumina refractories, in which maximum alumina content can be as high as __________ percent. 55 80 70 90 55 80 70 90 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which furnace consumes maximum refractory annually in an integrated steel plant? Blastfurnace L.D. converter Soaking pit Coke ovens Blastfurnace L.D. converter Soaking pit Coke ovens ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with __________ bricks. Silica Bakelite impregnated or fused periclase Fireclay Semi-silica Silica Bakelite impregnated or fused periclase Fireclay Semi-silica ANSWER DOWNLOAD EXAMIANS APP
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