Refractory Technology Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with __________ bricks. Silica Semi-silica Bakelite impregnated or fused periclase Fireclay Silica Semi-silica Bakelite impregnated or fused periclase Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not a natural insulating material? Diatomaceous earth/kieselgur Vermiculite None of these Asbestos Diatomaceous earth/kieselgur Vermiculite None of these Asbestos ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite refractories have low resistance to Both B and C Disintegration on sudden change of temperature Attack by basic slag Abrasion Both B and C Disintegration on sudden change of temperature Attack by basic slag Abrasion ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Segar cones are used for the determination of __________ of refractories. Spalling resistance Resistance to slag attack Softening temperature Electrical conductivity Spalling resistance Resistance to slag attack Softening temperature Electrical conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is a neutral refractory? Magnesia Silica Magnesite chrome Graphite Magnesia Silica Magnesite chrome Graphite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With decrease in porosity, the __________ of the refractories decreases. Spalling resistance Thermal conductivity Strength None of these Spalling resistance Thermal conductivity Strength None of these ANSWER DOWNLOAD EXAMIANS APP
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