Refractory Technology 'Super refractories' are made from pure Nitrides Carbides Borides Oxides Nitrides Carbides Borides Oxides ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory bricks with lower permeability is produced by using Higher moulding pressure All of these Higher firing temperature Finer grog size Higher moulding pressure All of these Higher firing temperature Finer grog size ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High alumina refractories are used in the Dome of blast furnace stoves Glass melting furnaces All of these Electric arc furnace roof Dome of blast furnace stoves Glass melting furnaces All of these Electric arc furnace roof ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology SiO₂ percentage in firebrick is about 80-85 55-60 >94 35-40 80-85 55-60 >94 35-40 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay refractories have Poor thermal spalling resistance Very high cost Tendency to expand unduly high during firing Low co-efficient of thermal expansion Poor thermal spalling resistance Very high cost Tendency to expand unduly high during firing Low co-efficient of thermal expansion ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories used in/for __________ should have low thermal conductivity. Muffle furnaces Regenerators Insulation Coke ovens Muffle furnaces Regenerators Insulation Coke ovens ANSWER DOWNLOAD EXAMIANS APP
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