Refractory Technology The linear thermal expansion of __________ bricks upto 1000 °C is very low of the order of ≤ 0.5 percent. Silica Fireclay Corundum Magnesite Silica Fireclay Corundum Magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following consumes the maximum tonnage of refractories annually in an integrated steel plant? Rotary lime kiln L.D. converter Soaking pits Ceheating furnace Rotary lime kiln L.D. converter Soaking pits Ceheating furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Addition of grog in fireclay brick during its manufacture is advantageous, because it results in Less shrinkage in heating, decreased apparent porosity & increased specific gravity Less addition of water to get a workable plasticity & lesser time required for drying the raw refractories and hence increased rate of production High strength & thermal spalling resistance All of these Less shrinkage in heating, decreased apparent porosity & increased specific gravity Less addition of water to get a workable plasticity & lesser time required for drying the raw refractories and hence increased rate of production High strength & thermal spalling resistance All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Machine moulding of dry mixture of refractories requires a pressure of the order of __________ kg/cm². 100 10 500 1000 100 10 500 1000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling tendency of refractories is reduced by increasing its Strength Specific gravity Porosity Thermal conductivity Strength Specific gravity Porosity Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase is MgCO₃ ZrSO₄ Crystalline form of MgO Amorphous magnesite MgCO₃ ZrSO₄ Crystalline form of MgO Amorphous magnesite ANSWER DOWNLOAD EXAMIANS APP
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