Refractory Technology Which is a neutral refractory? Magnesia Graphite Magnesite chrome Silica Magnesia Graphite Magnesite chrome Silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of refractories depends upon its Texture Composition Firing temperature All of these Texture Composition Firing temperature All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of fireclay bricks is about __________ kgf/cm². 50-100 100-150 200-400 500-1000 50-100 100-150 200-400 500-1000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Addition of grog in fireclay brick during its manufacture is advantageous, because it results in All of these High strength & thermal spalling resistance 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 All of these High strength & thermal spalling resistance 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 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 Maximum alumina content in high alumina refractory can be as high as __________ percent. 50 70 30 90 50 70 30 90 ANSWER DOWNLOAD EXAMIANS APP
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