Refractory Technology Insulating refractories should have Both A & B Low thermal conductivity Neither A nor B High porosity Both A & B Low thermal conductivity Neither A nor B High porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following impurities reduces the refractoriness of magnesite bricks? SiO₂ Al2O₃ CaO All of these SiO₂ Al2O₃ CaO All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) is the most important property for the refractory bricks At the hearth bottom of the furnace on which stock is placed Used in the roof of the furnace None of these Used for furnace insulation At the hearth bottom of the furnace on which stock is placed Used in the roof of the furnace None of these Used for furnace insulation ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An ideal refractory should have high Fusion point Shrinkage ability Spalling rate None of these Fusion point Shrinkage ability Spalling rate None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks is not used for lining the Roof of open hearth furnace Gas producer Bottom of hot metal mixer Cupola Roof of open hearth furnace Gas producer Bottom of hot metal mixer Cupola ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity is induced in insulating refractories by adding Ammonium chloride/sulphate Powdered naphthalene All of these Calcium phosphate Ammonium chloride/sulphate Powdered naphthalene All of these Calcium phosphate ANSWER DOWNLOAD EXAMIANS APP
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