Refractory Technology Magnesite refractories are generally not used in the Electric furnace walls Steel melting furnace Burning zone of cement kilns Open hearth furnace Electric furnace walls Steel melting furnace Burning zone of cement kilns Open hearth furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica bricks have low spalling resistance below 600°C, due to its Low refractoriness High co-efficient of expansion upto this temperature High thermal diffusivity Very high thermal conductivity Low refractoriness High co-efficient of expansion upto this temperature High thermal diffusivity Very high thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories have very high Wetting characteristics Thermal conductivity Both B and C Refractoriness Wetting characteristics Thermal conductivity Both B and C Refractoriness ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not a basic refractory? Magnesite Chrome magnesite Dolomite Silicon carbide Magnesite Chrome magnesite Dolomite Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm² ) is __________ °C. 500 >2000 1000 >1350 500 >2000 1000 >1350 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following impurities reduces the refractoriness of magnesite bricks? CaO All of these Al2O₃ SiO₂ CaO All of these Al2O₃ SiO₂ ANSWER DOWNLOAD EXAMIANS APP
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