Refractory Technology Fireclay refractories Combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming fusible aluminates silicates etc All of these Are not resistant to the action of basic slags Shrink during firing Combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming fusible aluminates silicates etc All of these Are not resistant to the action of basic slags Shrink during firing ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite chrome bricks are used in the Soaking pits All of these Roof lining of basic open hearth & other basic furnaces Reheating furnaces Soaking pits All of these Roof lining of basic open hearth & other basic furnaces Reheating furnaces 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 Resistance to slag Refractoriness Spalling resistance Crushing strength Resistance to slag Refractoriness Spalling resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High alumina refractory compared to fireclay bricks have Less load bearing capacity Low refractoriness High resistance to thermal shock and creep Less resistance to slag attack Less load bearing capacity Low refractoriness High resistance to thermal shock and creep Less resistance to slag attack ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Most Cermets, which normally have high thermal conductivity and high thermal shock resistance, comprises of ceramic & metallic components of __________ percent respectively. 80 and 20 20 and 80 50 and 50 60 and 40 80 and 20 20 and 80 50 and 50 60 and 40 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness of a typical silica brick corresponds to Segar cone number, '32', which is equivalent to a temperature of __________ °C. 1710 1520 1915 1380 1710 1520 1915 1380 ANSWER DOWNLOAD EXAMIANS APP
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