Refractory Technology Crushing strength of a refractory Increases with rise in service temperature Decreases with increase in porosity Decreases with rise in service temperature Is unaffected with change in service temperature Increases with rise in service temperature Decreases with increase in porosity Decreases with rise in service temperature Is unaffected with change in service temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ nozzles are used in continuous casting of steel, Zircon Carborundum Beryllia Thoria Zircon Carborundum Beryllia Thoria ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ bricks should not be used in oxidising atmosphere. Silica Carbon Fireclay Tar dolomite Silica Carbon Fireclay Tar dolomite ANSWER DOWNLOAD EXAMIANS APP
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 Which is a neutral refractory? Magnesite chrome Graphite Magnesia Silica Magnesite chrome Graphite Magnesia Silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Conversion of silica mineral to cristobalite is accompanied by reduction in its Neither A nor B Volume Specific gravity Both A & B Neither A nor B Volume Specific gravity Both A & B ANSWER DOWNLOAD EXAMIANS APP
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