Refractory Technology Presence of MgO in alumino-silicate refractories __________ its refractoriness. Either A or B; depends on its quantity Lowers Increases Does not affect Either A or B; depends on its quantity Lowers Increases Does not affect ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pure oxide refractories are generally monocrystaliine in nature and are self bonded __________ bricks are generally used as moderator in nuclear reactors. Carborundum Beryllia Corundum Thoria Carborundum Beryllia Corundum Thoria ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Segar cones are used for the determination of __________ of refractories. Electrical conductivity Resistance to slag attack Spalling resistance Softening temperature Electrical conductivity Resistance to slag attack Spalling resistance Softening temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal spalling mainly occurs during __________ of furnaces. Neither A nor B Both A & B Cooling down Warming up Neither A nor B Both A & B Cooling down Warming up ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hot blast main (carrying air at 1000°C) in blast furnace are lined with __________ bricks. Magnesite Fireclay Zirconia Silica Magnesite Fireclay Zirconia Silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Bauxite calcining rotary kilns are lined with __________ bricks. Carbon 85% alumina Corundum Fireclay Carbon 85% alumina Corundum Fireclay ANSWER DOWNLOAD EXAMIANS APP
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