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 With increase in the density of silica refractories, its Resistance to slag attack increases Spalling resistance reduces Both A & B Neither A nor B Resistance to slag attack increases Spalling resistance reduces Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity is induced in insulating refractories by adding Calcium phosphate Ammonium chloride/sulphate Powdered naphthalene All of these Calcium phosphate Ammonium chloride/sulphate Powdered naphthalene All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology A steel member used in the furnace construction to take the thrust of the brickwork is called Buckstay Breast wall Armouring Baffle Buckstay Breast wall Armouring Baffle ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 10 to 30% magnesite is added to chromite to produce chrome-magnesite refractories. Magnesite addition is mainly done to improve the __________ of chromite. Refractoriness Spalling resistance Crushing strength Resistance to slag Refractoriness Spalling resistance Crushing strength Resistance to slag ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS