Refractory Technology Carborundum used for making crucibles for melting non-ferrous metals is chemically Silicon nitride Crystalline magnesia Zirconium sulphate Silicon carbide Silicon nitride Crystalline magnesia Zirconium sulphate Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one contains minimum percentage of SiO₂? Firebrick Sillimanite Semi-silica Aluminous firebrick Firebrick Sillimanite Semi-silica Aluminous firebrick ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Dilatometer is used for the determination of __________ of refractories. Resistance to CO attack RUL Permanent linear change Modulus of rupture Resistance to CO attack RUL Permanent linear change Modulus of rupture ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Segar cones are used for the determination of __________ of refractories. Resistance to slag attack Electrical conductivity Spalling resistance Softening temperature Resistance to slag attack Electrical conductivity Spalling resistance Softening temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology RUL of refractories depends on the Chemical composition All of these Presence of impurities like iron & alkali Physical structure Chemical composition All of these Presence of impurities like iron & alkali Physical structure ANSWER DOWNLOAD EXAMIANS APP
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