Refractory Technology Which form of silica has the highest specific gravity? All of these Cristobalite Tridymite Quartz All of these Cristobalite Tridymite Quartz ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica upto 1470°C ? None of these Tridymite Cristobalite Quartz None of these Tridymite Cristobalite Quartz ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hot face insulating linings of high purity alumina fused mullite are used, where Highly reducing conditions are involved Presence of iron or silica is harmful All of these Very high temperatures are involved Highly reducing conditions are involved Presence of iron or silica is harmful All of these Very high temperatures are involved ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower part of hot metal mixer are lined with __________ bricks. Superduty fireclay Silica High alumina Carborundum Superduty fireclay Silica High alumina Carborundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not a high alumina refractory? Bauxite Corrundum Mullite Dolomite Bauxite Corrundum Mullite Dolomite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with __________ bricks. Fireclay Bakelite impregnated or fused periclase Silica Semi-silica Fireclay Bakelite impregnated or fused periclase Silica Semi-silica ANSWER DOWNLOAD EXAMIANS APP
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