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 Periclase refractory contains mainly CaO SiO₂ Al2O₃ MgO CaO SiO₂ Al2O₃ MgO ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which property of refractories is the most important for top section of the blast furnace? Resistance to abrasion Resistance to corrosion by slag Stability of volume at high temperature Resistance to slag peneration Resistance to abrasion Resistance to corrosion by slag Stability of volume at high temperature Resistance to slag peneration ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite chrome refractories Have better spalling resistance than chrome magnesite refractories 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 Are not at all resistant to the corrosive action of iron oxide Have better spalling resistance than chrome magnesite refractories 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 Are not at all resistant to the corrosive action of iron oxide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) is the most important property for the refractory bricks Used for furnace insulation Used in the roof of the furnace At the hearth bottom of the furnace on which stock is placed None of these Used for furnace insulation Used in the roof of the furnace At the hearth bottom of the furnace on which stock is placed None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is an acidic refractory? Dolomite Magnesite Chrome magnesite Fireclay Dolomite Magnesite Chrome magnesite Fireclay ANSWER DOWNLOAD EXAMIANS APP
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