Refractory Technology Vacuum steel degassing units are lined with Graphite blocks Silica bricks High alumina bricks Low duty firebricks Graphite blocks Silica bricks High alumina bricks Low duty firebricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum shrinkage in volume occurring during burning/firing of dried refractories may be as high as __________ percent. 15 10 20 30 15 10 20 30 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm² ) is __________ °C. >2000 500 1000 >1350 >2000 500 1000 >1350 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 'Super refractories' are made from pure Oxides Carbides Nitrides Borides Oxides Carbides Nitrides Borides ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Graphite or carbon refractories Are not resistant to corrosion by slag Should be used in neutral or reducing atmosphere Exihibit wetting characteristics Exhibit high shrinkage on thermal treatment Are not resistant to corrosion by slag Should be used in neutral or reducing atmosphere Exihibit wetting characteristics Exhibit high shrinkage on thermal treatment ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ramming masses are used for Both A & B Neither A nor B Repairing construction of various furnace parts Obtaining monolithic working faces Both A & B Neither A nor B Repairing construction of various furnace parts Obtaining monolithic working faces ANSWER DOWNLOAD EXAMIANS APP
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