Refractory Technology Refractory bricks with lower permeability is produced by using Higher firing temperature All of these Higher moulding pressure Finer grog size Higher firing temperature All of these Higher moulding pressure Finer grog size ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 'Spinel', a refractory mineral is chemically represented as MgAl2O₃ MgAl2O₄ MgSO₄ MgAl2O₃.2H₂O MgAl2O₃ MgAl2O₄ MgSO₄ MgAl2O₃.2H₂O ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silicon carbide refractories are used in the Ceramic recuperators All of these Muffle furnace Zinc smelting furnace Ceramic recuperators All of these Muffle furnace Zinc smelting furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica refractories are not used in Coke oven walls Dome and upper portion of B.F. stoves Beehive coke ovens Open hearth furnace roof Coke oven walls Dome and upper portion of B.F. stoves Beehive coke ovens Open hearth furnace roof ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Graphite or carbon refractories Should be used in neutral or reducing atmosphere Are not resistant to corrosion by slag Exihibit wetting characteristics Exhibit high shrinkage on thermal treatment Should be used in neutral or reducing atmosphere Are not resistant to corrosion by slag Exihibit wetting characteristics Exhibit high shrinkage on thermal treatment ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High alumina refractory compared to fireclay bricks have 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 Less load bearing capacity ANSWER DOWNLOAD EXAMIANS APP
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