Refractory Technology 'Spinel', a refractory mineral is chemically represented as MgAl2O₄ MgAl2O₃ MgAl2O₃.2H₂O MgSO₄ MgAl2O₄ MgAl2O₃ MgAl2O₃.2H₂O MgSO₄ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The linear thermal expansion of __________ bricks upto 1000 °C is very low of the order of ≤ 0.5 percent. Fireclay Corundum Silica Magnesite Fireclay Corundum Silica Magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not a neutral refractory? Silicon carbide Magnesite Graphite Chromite Silicon carbide Magnesite Graphite Chromite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion temperature of pure silica (SiO₂) is __________ °C. 2800 2570 1715 1350 2800 2570 1715 1350 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm² ) is __________ °C. 1000 500 >1350 >2000 1000 500 >1350 >2000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High density refractory bricks have lower Slag penetration resistance Spalling resistance Thermal conductivity Fusion point Slag penetration resistance Spalling resistance Thermal conductivity Fusion point ANSWER DOWNLOAD EXAMIANS APP
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