Refractory Technology Firing of refractory brick is done to Form ceramic bonds necessary for development of high crushing strength in the finished product All of these Develop stable mineral forms in them Dehydrate the dried refractory Form ceramic bonds necessary for development of high crushing strength in the finished product All of these Develop stable mineral forms in them Dehydrate the dried refractory ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the Both A & B Corrosion by layer of slag Washing action of metal Neither A nor B Both A & B Corrosion by layer of slag Washing action of metal Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Rate of slag attack on refractories increases with rise in temperature due to the Increased thermal conductivity of brick Oxidising condition in the furnace Decreased viscosity of slag None of these Increased thermal conductivity of brick Oxidising condition in the furnace Decreased viscosity of slag None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Vacuum steel degassing units are lined with High alumina bricks Low duty firebricks Silica bricks Graphite blocks High alumina bricks Low duty firebricks Silica bricks Graphite blocks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 'Spinel', a refractory mineral is chemically represented as MgSO₄ MgAl2O₃.2H₂O MgAl2O₃ MgAl2O₄ MgSO₄ MgAl2O₃.2H₂O MgAl2O₃ MgAl2O₄ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With decrease in porosity, the __________ of the refractories decreases. Strength Spalling resistance Thermal conductivity None of these Strength Spalling resistance Thermal conductivity None of these ANSWER DOWNLOAD EXAMIANS APP
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