Refractory Technology Except __________ , all other refractories are bad conductors of electricity (i.e, have low electrical conductivity). Fireclay Carborundum Chromite Graphite Fireclay Carborundum Chromite Graphite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Mullite is chemically represented by 3Al2O₃ . 2SiO₂ Al2O₃ . SiO₂ 2Al2O₃ . 3SiO₂ Al2O₃ . 2SiO₂ 3Al2O₃ . 2SiO₂ Al2O₃ . SiO₂ 2Al2O₃ . 3SiO₂ Al2O₃ . 2SiO₂ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which property of refractories is the most important for top section of the blast furnace? Resistance to corrosion by slag Resistance to abrasion Stability of volume at high temperature Resistance to slag peneration Resistance to corrosion by slag Resistance to abrasion Stability of volume at high temperature Resistance to slag peneration ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite bricks have poor resistance to attack by __________ slag. Basic None of these Acid Lime Basic None of these Acid Lime ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chromite refractories are used in Both A & B Bottom of soaking pits Neither A nor B Between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other Both A & B Bottom of soaking pits Neither A nor B Between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 'Spinel', a refractory mineral is chemically represented as MgAl2O₃.2H₂O MgAl2O₄ MgAl2O₃ MgSO₄ MgAl2O₃.2H₂O MgAl2O₄ MgAl2O₃ MgSO₄ ANSWER DOWNLOAD EXAMIANS APP
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