Refractory Technology The highest melting pure oxide (m.p. > 3000°C) is Thoria Zirconia Alumina Beryllia Thoria Zirconia Alumina Beryllia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An ideal refractory should have high Fusion point Spalling rate Shrinkage ability None of these Fusion point Spalling rate Shrinkage ability None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not a neutral refractory? Chromite Graphite Magnesite Silicon carbide Chromite Graphite Magnesite Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology SiO₂ percentage in firebrick is about 80-85 35-40 55-60 >94 80-85 35-40 55-60 >94 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ramming masses are used for Repairing construction of various furnace parts Obtaining monolithic working faces Neither A nor B Both A & B Repairing construction of various furnace parts Obtaining monolithic working faces Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is an acidic refractory? Fireclay Magnesite Chrome magnesite Dolomite Fireclay Magnesite Chrome magnesite Dolomite ANSWER DOWNLOAD EXAMIANS APP
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