Refractory Technology An indication of degree of firing in silica brick is its Specific gravity Fusion point RUL None of these Specific gravity Fusion point RUL None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Addition of zircon to silica refractory brick improves its Neither A nor B Neither A nor B Resistance to slag attack Crushing strength Neither A nor B Neither A nor B Resistance to slag attack Crushing strength ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Dry mix hydraulic compositions of refractory aggregates with suitable bonding materials are called refractory Cements None of these Castables Mortars Cements None of these Castables Mortars ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The highest melting pure oxide (m.p. > 3000°C) is Alumina Beryllia Thoria Zirconia Alumina Beryllia Thoria Zirconia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica refractories are not used in Open hearth furnace roof Beehive coke ovens Coke oven walls Dome and upper portion of B.F. stoves Open hearth furnace roof Beehive coke ovens Coke oven walls Dome and upper portion of B.F. stoves ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carborundum used for making crucibles for melting non-ferrous metals is chemically Zirconium sulphate Crystalline magnesia Silicon nitride Silicon carbide Zirconium sulphate Crystalline magnesia Silicon nitride Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
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