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 Siliceous fireclay Fireclay Silicon carbide Corrundum Siliceous fireclay Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories subjected to alternate cycles of heating & cooling are liable to loose their resistance to Thermal spalling Slag attack CO attack Fusion under load Thermal spalling Slag attack CO attack Fusion under load ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Addition of grog in fireclay brick during its manufacture is advantageous, because it results in Less shrinkage in heating, decreased apparent porosity & increased specific gravity All of these 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 Less shrinkage in heating, decreased apparent porosity & increased specific gravity All of these 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 Pyrometric cone equivalent (PCE) value (Segar cone) of 'superduty refractories' is more than 33 which corresponds to a temperature of __________ °C. 1630 1520 1670 1730 1630 1520 1670 1730 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The main raw material for manufacture of silicon carbide refractories is Periclase Carborundum Corrundum Bauxite Periclase Carborundum Corrundum Bauxite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is a basic refractory? Chrome magnesite Fireclay None of these Silica Chrome magnesite Fireclay None of these Silica ANSWER DOWNLOAD EXAMIANS APP
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