Refractory Technology Conversion of silica mineral to cristobalite is accompanied by reduction in its Neither A nor B Specific gravity Volume Both A & B Neither A nor B Specific gravity Volume Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories used in/for __________ should have low thermal conductivity. Insulation Muffle furnaces Regenerators Coke ovens Insulation Muffle furnaces Regenerators Coke ovens ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm² ) is __________ °C. 500 >2000 >1350 1000 500 >2000 >1350 1000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories are exclusively used in the Side wall of soaking pits Hearth of blast furnace Walls of coke oven Regenerators of coke oven Side wall of soaking pits Hearth of blast furnace Walls of coke oven Regenerators of coke oven ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Zircon refractories have High RUL (1600°C) and refractoriness (> 2000°C) Low co-efficient of expansion High spalling resistance All of these High RUL (1600°C) and refractoriness (> 2000°C) Low co-efficient of expansion High spalling resistance All of these 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 Hearth of the blast furnace Nuclear reactors, missiles & space crafts Roof of electric furnaces Insulation of high temperature furnaces Hearth of the blast furnace Nuclear reactors, missiles & space crafts Roof of electric furnaces Insulation of high temperature furnaces ANSWER DOWNLOAD EXAMIANS APP
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