Refractory Technology __________ nozzles are used in continuous casting of steel, Thoria Zircon Carborundum Beryllia Thoria Zircon Carborundum Beryllia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite refractories have low resistance to Disintegration on sudden change of temperature Attack by basic slag Abrasion Both B and C Disintegration on sudden change of temperature Attack by basic slag Abrasion Both B and C ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Roof of a basic open hearth furnace is lined with __________ bricks. Silica Magnesite Dolomite Fireclay Silica Magnesite Dolomite Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Beryllia (which is used in making crucibles for melting uranium & thorium) is superior to alumina in all respects for high temperature (> 1900°C ) use, except Thermal conductivity Fusion point Electrical conductivity Cost Thermal conductivity Fusion point Electrical conductivity Cost ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 'Spinel', a refractory mineral is chemically represented as MgAl2O₃.2H₂O MgSO₄ MgAl2O₃ MgAl2O₄ MgAl2O₃.2H₂O MgSO₄ MgAl2O₃ MgAl2O₄ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With decrease in porosity, the __________ of the refractories decreases. Spalling resistance Strength Thermal conductivity None of these Spalling resistance Strength Thermal conductivity None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS