Refractory Technology Graphite or carbon refractories Are not resistant to corrosion by slag Exihibit wetting characteristics Exhibit high shrinkage on thermal treatment Should be used in neutral or reducing atmosphere Are not resistant to corrosion by slag Exihibit wetting characteristics Exhibit high shrinkage on thermal treatment Should be used in neutral or reducing atmosphere 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. Corundum Thoria Beryllia Carborundum Corundum Thoria Beryllia Carborundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Zircon refractories have High spalling resistance High RUL (1600°C) and refractoriness (> 2000°C) Low co-efficient of expansion All of these High spalling resistance High RUL (1600°C) and refractoriness (> 2000°C) Low co-efficient of expansion All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Outer combustion chamber of blast furnace stove is lined with __________ bricks. Fireclay Chrome magnesite Zirconia Silica Fireclay Chrome magnesite Zirconia Silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ferromagnetic ceramic material is not used in the Magnetic switches Transformers Television sets Thermal insulation Magnetic switches Transformers Television sets Thermal insulation ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Zirconia refractory Has poor electrical conductivity at high temperature Does not react with basic slags Can not be used as an insulator Is produced from baddeleyite Has poor electrical conductivity at high temperature Does not react with basic slags Can not be used as an insulator Is produced from baddeleyite ANSWER DOWNLOAD EXAMIANS APP
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