Refractory Technology 'Spinel', a refractory mineral is chemically represented as MgAl2O₃ MgSO₄ MgAl2O₃.2H₂O MgAl2O₄ MgAl2O₃ MgSO₄ MgAl2O₃.2H₂O MgAl2O₄ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silicon carbide refractories are used in the Muffle furnace Ceramic recuperators All of these Zinc smelting furnace Muffle furnace Ceramic recuperators All of these Zinc smelting furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chromite refractories are Acidic refractory Neutral refractory Fired at a temperature of 600°C only Basic refractory Acidic refractory Neutral refractory Fired at a temperature of 600°C only Basic refractory ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling tendency of refractories is reduced by increasing its Porosity Strength Thermal conductivity Specific gravity Porosity Strength Thermal conductivity Specific gravity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory bricks with lower permeability is produced by using Higher moulding pressure All of these Higher firing temperature Finer grog size Higher moulding pressure All of these Higher firing temperature Finer grog size ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An ideal refractory should have high Shrinkage ability None of these Fusion point Spalling rate Shrinkage ability None of these Fusion point Spalling rate ANSWER DOWNLOAD EXAMIANS APP
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