Refractory Technology Zircon refractories have High RUL (1600°C) and refractoriness (> 2000°C) All of these High spalling resistance Low co-efficient of expansion High RUL (1600°C) and refractoriness (> 2000°C) All of these High spalling resistance Low co-efficient of expansion ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 'Spinel', a refractory mineral is chemically represented as MgAl2O₃ MgSO₄ MgAl2O₃.2H₂O MgAl2O₄ MgAl2O₃ MgSO₄ MgAl2O₃.2H₂O MgAl2O₄ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the alumina content in firebricks, its fusion point (refractoriness) Decreases linearly Decreases Increases Remains unchanged Decreases linearly Decreases Increases Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Furnace atmosphere for softening temperature determination of refractories (in which segar cones are placed) should be Either A or B Oxidising Neutral Neither A nor B Either A or B Oxidising Neutral Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are not used in the Beehive coke oven By-product coke oven walls Coke oven regenerators Combustion chamber of B.F. stoves Beehive coke oven By-product coke oven walls Coke oven regenerators Combustion chamber of B.F. stoves ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cermets are combination of ceramic and metallic materials due to which they have high strength & resistance to high temperature. Cermets are used in the Nuclear reactors, missiles & space crafts Insulation of high temperature furnaces Hearth of the blast furnace Roof of electric furnaces Nuclear reactors, missiles & space crafts Insulation of high temperature furnaces Hearth of the blast furnace Roof of electric furnaces ANSWER DOWNLOAD EXAMIANS APP
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