Refractory Technology Mullite is chemically represented by Al2O₃ . 2SiO₂ 3Al2O₃ . 2SiO₂ 2Al2O₃ . 3SiO₂ Al2O₃ . SiO₂ Al2O₃ . 2SiO₂ 3Al2O₃ . 2SiO₂ 2Al2O₃ . 3SiO₂ Al2O₃ . SiO₂ 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
Refractory Technology Which form of silica has the highest specific gravity? Tridymite Cristobalite Quartz All of these Tridymite Cristobalite Quartz All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory materials are never used in the construction of Pressure vessels Ovens & retorts Orton cones Segar cones Pressure vessels Ovens & retorts Orton cones Segar cones ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness/fusion points of 'superduty' refractories is __________ °C. > 1730 > 2000 1630-1670 1520-1630 > 1730 > 2000 1630-1670 1520-1630 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite refractories are used for the construction of those furnaces, which are Used for raising & maintaining high temperature Not required to resist the corrosive action of basic slag Both (b) and © Not subjected to fluctuation in temperature Used for raising & maintaining high temperature Not required to resist the corrosive action of basic slag Both (b) and © Not subjected to fluctuation in temperature ANSWER DOWNLOAD EXAMIANS APP
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