Refractory Technology Which of the following impurities reduces the refractoriness of magnesite bricks? Al2O₃ All of these SiO₂ CaO Al2O₃ All of these SiO₂ CaO ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the density of silica refractories, its Neither A nor B Resistance to slag attack increases Both A & B Spalling resistance reduces Neither A nor B Resistance to slag attack increases Both A & B Spalling resistance reduces ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity is induced in insulating refractories by adding Ammonium chloride/sulphate Calcium phosphate Powdered naphthalene All of these Ammonium chloride/sulphate Calcium phosphate 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 Armouring Baffle Buckstay Breast wall Armouring Baffle Buckstay Breast wall 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. Crushing strength Spalling resistance Refractoriness Resistance to slag Crushing strength Spalling resistance Refractoriness Resistance to slag ANSWER DOWNLOAD EXAMIANS APP
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