Refractory Technology Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm² ) is __________ °C. 1000 500 >2000 >1350 1000 500 >2000 >1350 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay refractories Shrink during firing Are not resistant to the action of basic slags Combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming fusible aluminates silicates etc All of these Shrink during firing Are not resistant to the action of basic slags Combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming fusible aluminates silicates etc All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chemically, mullite refractories is 3Al2O₃.2SiO₂ ZrSO₄ ThO₂ Al2O₃ 3Al2O₃.2SiO₂ ZrSO₄ ThO₂ Al2O₃ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Zirconia refractory Can not be used as an insulator Does not react with basic slags Is produced from baddeleyite Has poor electrical conductivity at high temperature Can not be used as an insulator Does not react with basic slags Is produced from baddeleyite Has poor electrical conductivity at high temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 'Spinel', a refractory mineral is chemically represented as MgAl2O₄ MgSO₄ MgAl2O₃ MgAl2O₃.2H₂O MgAl2O₄ MgSO₄ MgAl2O₃ MgAl2O₃.2H₂O ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hot metal runner in blast furnace are lined with __________ bricks. Magnesite Silica Carborundum Fireclay Magnesite Silica Carborundum Fireclay ANSWER DOWNLOAD EXAMIANS APP
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