Refractory Technology An ideal refractory should have high Spalling rate Fusion point Shrinkage ability None of these Spalling rate Fusion point Shrinkage ability None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology SiO₂ percentage in firebrick is about >94 80-85 35-40 55-60 >94 80-85 35-40 55-60 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silicon carbide refractories are used in the Ceramic recuperators Muffle furnace All of these Zinc smelting furnace Ceramic recuperators Muffle furnace All of these Zinc smelting furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite chrome bricks are used in the Roof lining of basic open hearth & other basic furnaces All of these Reheating furnaces Soaking pits Roof lining of basic open hearth & other basic furnaces All of these Reheating furnaces Soaking pits ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Addition of grog in fireclay brick during its manufacture is advantageous, because it results in High strength & thermal spalling resistance Less shrinkage in heating, decreased apparent porosity & increased specific gravity All of these 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 Less shrinkage in heating, decreased apparent porosity & increased specific gravity All of these Less addition of water to get a workable plasticity & lesser time required for drying the raw refractories and hence increased rate of production ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories are dried in the Tunnel kilns Rotary kilns Sun None of these Tunnel kilns Rotary kilns Sun None of these ANSWER DOWNLOAD EXAMIANS APP
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