Refractory Technology Outer combustion chamber of blast furnace stove is lined with __________ bricks. Fireclay Silica Zirconia Chrome magnesite Fireclay Silica Zirconia Chrome magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The highest melting pure oxide (m.p. > 3000°C) is Zirconia Beryllia Alumina Thoria Zirconia Beryllia Alumina Thoria ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal spalling mainly occurs during __________ of furnaces. Both A & B Warming up Neither A nor B Cooling down Both A & B Warming up Neither A nor B Cooling down ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ is the measure of the strength of refractory under the combined effect of temperature & load. Porosity Thermal conductivity Specific gravity RUL Porosity Thermal conductivity Specific gravity RUL ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High alumina refractory compared to fireclay bricks have High resistance to thermal shock and creep Low refractoriness Less resistance to slag attack Less load bearing capacity High resistance to thermal shock and creep Low refractoriness Less resistance to slag attack Less load bearing capacity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one expands on heating? Both A & B Silica bricks Fireclay bricks Neither A nor B Both A & B Silica bricks Fireclay bricks Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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