Refractory Technology Hot blast main (carrying air at 1000°C) in blast furnace are lined with __________ bricks. Fireclay Zirconia Silica Magnesite Fireclay Zirconia Silica Magnesite ANSWER DOWNLOAD EXAMIANS APP
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 Conversion of silica mineral to cristobalite is accompanied by reduction in its Specific gravity Neither A nor B Volume Both A & B Specific gravity Neither A nor B Volume Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The largest consumer of refractories is the __________ industry. Fertiliser Power Metallurgical Cement Fertiliser Power Metallurgical Cement ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following impurities reduces the refractoriness of magnesite bricks? Al2O₃ SiO₂ CaO All of these Al2O₃ SiO₂ CaO All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An indication of degree of firing in silica brick is its RUL Fusion point None of these Specific gravity RUL Fusion point None of these Specific gravity ANSWER DOWNLOAD EXAMIANS APP
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