Refractory Technology Which of the following bricks has the most close values of RUL and PCE? High alumina bricks Fireclay bricks Tar dolomite bricks Silica bricks High alumina bricks Fireclay bricks Tar dolomite bricks Silica bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite chrome refractories Are not at all resistant to the corrosive action of iron oxide Have very low (50 kg/cm² ) cold crushing strength (C.C.S.), and can not be used in metalcase form Have very low thermal co-efficient of expansion Have better spalling resistance than chrome magnesite refractories Are not at all resistant to the corrosive action of iron oxide Have very low (50 kg/cm² ) cold crushing strength (C.C.S.), and can not be used in metalcase form Have very low thermal co-efficient of expansion Have better spalling resistance than chrome magnesite refractories ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of silica bricks varies from __________ percent. 20 to 30 45 to 60 5 to 10 60 to 75 20 to 30 45 to 60 5 to 10 60 to 75 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories used in/for __________ should have low thermal conductivity. Regenerators Insulation Muffle furnaces Coke ovens Regenerators Insulation Muffle furnaces Coke ovens ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Outer combustion chamber of blast furnace stove is lined with __________ bricks. Fireclay Zirconia Silica Chrome magnesite Fireclay Zirconia Silica Chrome magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology SiO₂ percentage in firebrick is about >94 80-85 35-40 55-60 >94 80-85 35-40 55-60 ANSWER DOWNLOAD EXAMIANS APP
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