Refractory Technology Zircon refractories have High spalling resistance All of these High RUL (1600°C) and refractoriness (> 2000°C) Low co-efficient of expansion High spalling resistance All of these High RUL (1600°C) and refractoriness (> 2000°C) Low co-efficient of expansion ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Insulating refractories should have Both A & B High porosity Neither A nor B Low thermal conductivity Both A & B High porosity Neither A nor B Low thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High porosity refractory bricks have All of these Better thermal spalling resistance Poor resistance to the peneration of molten slag, metal & flue gases Poor heat conductivity & low strength All of these Better thermal spalling resistance Poor resistance to the peneration of molten slag, metal & flue gases Poor heat conductivity & low strength ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory materials are never used in the construction of Pressure vessels Orton cones Ovens & retorts Segar cones Pressure vessels Orton cones Ovens & retorts Segar cones ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory bricks having lower porosity have Low heat capacity Low thermal conductivity Greater strength High insulating properties Low heat capacity Low thermal conductivity Greater strength High insulating properties 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 Corrundum Fireclay Siliceous fireclay Silicon carbide Corrundum Fireclay Siliceous fireclay Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
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