Refractory Technology Chemically, mullite refractories is 3Al2O₃.2SiO₂ ZrSO₄ Al2O₃ ThO₂ 3Al2O₃.2SiO₂ ZrSO₄ Al2O₃ ThO₂ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ bricks should not be used in oxidising atmosphere. Tar dolomite Fireclay Carbon Silica Tar dolomite Fireclay Carbon Silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum shrinkage in volume occurring during burning/firing of dried refractories may be as high as __________ percent. 30 15 20 10 30 15 20 10 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Conversion of silica mineral to cristobalite is accompanied by reduction in its Neither A nor B Volume Both A & B Specific gravity Neither A nor B Volume Both A & B Specific gravity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are used in the Chimney linings Furnaces allowed to cool frequently All of these Flues Chimney linings Furnaces allowed to cool frequently All of these Flues ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Firing temperature of magnesite bricks is about __________ °C. 1000-1200 2400-2600 800-1000 1600-1800 1000-1200 2400-2600 800-1000 1600-1800 ANSWER DOWNLOAD EXAMIANS APP
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