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 Firing temperature of magnesite bricks is about __________ °C. 800-1000 1600-1800 1000-1200 2400-2600 800-1000 1600-1800 1000-1200 2400-2600 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silliminite (Al2O₃.SiO₂) refractory, which is a neutral refractory, is not used in Gas retorts Crucibles Glass melting furnace Pottery furnace Gas retorts Crucibles Glass melting furnace Pottery furnace ANSWER DOWNLOAD EXAMIANS APP
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 High strength & thermal spalling resistance 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 Less shrinkage in heating, decreased apparent porosity & increased specific gravity High strength & thermal spalling resistance 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 Periclase refractory contains mainly Al2O₃ CaO SiO₂ MgO Al2O₃ CaO SiO₂ MgO ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which refractory must have controlled atmosphere (temperature and humidity) for its safe storage? Mullite bricks Tar bonded dolomite bricks Magnesite bricks Fireclay bricks Mullite bricks Tar bonded dolomite bricks Magnesite bricks Fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
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