Refractory Technology Machine moulding of dry mixture of refractories requires a pressure of the order of __________ kg/cm². 1000 500 100 10 1000 500 100 10 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not an acidic refractory? Silica Fireclay High alumina refractory Carbon black Silica Fireclay High alumina refractory Carbon black ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silliminite (Al2O₃.SiO₂) refractory, which is a neutral refractory, is not used in Glass melting furnace Crucibles Pottery furnace Gas retorts Glass melting furnace Crucibles Pottery furnace Gas retorts ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal diffusivity of a refractory brick is high, when its __________ is high. Density Thermal conductivity None of these Specific heat Density Thermal conductivity None of these Specific heat ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase refractory contains mainly Al2O₃ CaO MgO SiO₂ Al2O₃ CaO MgO SiO₂ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Crushing strength of a refractory Decreases with rise in service temperature Increases with rise in service temperature Decreases with increase in porosity Is unaffected with change in service temperature Decreases with rise in service temperature Increases with rise in service temperature Decreases with increase in porosity Is unaffected with change in service temperature ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS