Refractory Technology Addition of grog in fireclay brick during its manufacture is advantageous, because it results in 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 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 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories have very high Refractoriness Both B and C Wetting characteristics Thermal conductivity Refractoriness Both B and C Wetting characteristics Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under loads (RUL) is quite close to the fusion temperature (PCE) for __________ bricks. Fireclay Very low alumina Dolomite Silica Fireclay Very low alumina Dolomite Silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is a basic refractory? Fireclay None of these Chrome magnesite Silica Fireclay None of these Chrome magnesite Silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory bricks with lower permeability is produced by using Higher moulding pressure Higher firing temperature Finer grog size All of these Higher moulding pressure Higher firing temperature Finer grog size All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carborundum used for making crucibles for melting non-ferrous metals is chemically Silicon carbide Crystalline magnesia Zirconium sulphate Silicon nitride Silicon carbide Crystalline magnesia Zirconium sulphate Silicon nitride ANSWER DOWNLOAD EXAMIANS APP
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