Refractory Technology Fireclay refractories have Tendency to expand unduly high during firing Poor thermal spalling resistance Very high cost Low co-efficient of thermal expansion Tendency to expand unduly high during firing Poor thermal spalling resistance Very high cost Low co-efficient of thermal expansion ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Outer combustion chamber of blast furnace stove is lined with __________ bricks. Chrome magnesite Silica Zirconia Fireclay Chrome magnesite Silica Zirconia Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 'Super refractories' are made from pure Carbides Oxides Borides Nitrides Carbides Oxides Borides Nitrides ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum water percentage in refractory mix meant for hand moulding may be as high as __________ percent. 7-12 2-3 14-20 5-7 7-12 2-3 14-20 5-7 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is an acidic refractory? Magnesite Chrome magnesite Fireclay Dolomite Magnesite Chrome magnesite Fireclay Dolomite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling tendency of refractories is reduced by increasing its Specific gravity Porosity Thermal conductivity Strength Specific gravity Porosity Thermal conductivity Strength ANSWER DOWNLOAD EXAMIANS APP
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