Refractory Technology Grog Contains both alumina and silica Is a non-plastic material Iscrushed firebrick All of these Contains both alumina and silica Is a non-plastic material Iscrushed firebrick All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Electrical resistor bars are made of Alumina Silicon carbide Zirconia Graphite Alumina Silicon carbide Zirconia Graphite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ceramic recuperators used for waste heat recovery from high temperature flue gas going out of the furnace is made of Silicon carbide Corrundum Fireclay Siliceous fireclay Silicon carbide Corrundum Fireclay Siliceous fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Addition of grog in fireclay brick during its manufacture is advantageous, because it results in 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 All of these Less shrinkage in heating, decreased apparent porosity & increased specific gravity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pure bauxite is the best raw material for the manufacture of high alumina refractories, in which maximum alumina content can be as high as __________ percent. 90 70 55 80 90 70 55 80 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal diffusivity of a refractory brick is high, when its __________ is high. Specific heat None of these Thermal conductivity Density Specific heat None of these Thermal conductivity Density ANSWER DOWNLOAD EXAMIANS APP
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