Refractory Technology Rate of slag attack on refractories increases with rise in temperature due to the Increased thermal conductivity of brick Oxidising condition in the furnace None of these Decreased viscosity of slag Increased thermal conductivity of brick Oxidising condition in the furnace None of these Decreased viscosity of slag ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is required in an insulating refractory? Neither A nor B High thermal conductivity Low porosity Both A & B Neither A nor B High thermal conductivity Low porosity Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silliminite (Al2O₃.SiO₂) refractory, which is a neutral refractory, is not used in Crucibles Gas retorts Pottery furnace Glass melting furnace Crucibles Gas retorts Pottery furnace Glass melting furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not a high alumina refractory? Corrundum Dolomite Bauxite Mullite Corrundum Dolomite Bauxite Mullite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Dilatometer is used for the determination of __________ of refractories. Permanent linear change RUL Resistance to CO attack Modulus of rupture Permanent linear change RUL Resistance to CO attack Modulus of rupture ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with __________ bricks. Silica Fireclay Bakelite impregnated or fused periclase Semi-silica Silica Fireclay Bakelite impregnated or fused periclase Semi-silica ANSWER DOWNLOAD EXAMIANS APP
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