Refractory Technology Firing temperature of magnesite bricks is about __________ °C. 1600-1800 1000-1200 2400-2600 800-1000 1600-1800 1000-1200 2400-2600 800-1000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica between 1470°C and the melting point 1713°C ? Quartz Tridymite Cristobalite None of these Quartz Tridymite Cristobalite None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Zircon refractories have High spalling resistance All of these Low co-efficient of expansion High RUL (1600°C) and refractoriness (> 2000°C) High spalling resistance All of these Low co-efficient of expansion High RUL (1600°C) and refractoriness (> 2000°C) ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Outer combustion chamber of blast furnace stove is lined with __________ bricks. Chrome magnesite Silica Zirconia Fireclay Chrome magnesite Silica Zirconia Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following impurities reduces the refractoriness of magnesite bricks? SiO₂ All of these Al2O₃ CaO SiO₂ All of these Al2O₃ CaO ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite bricks have poor resistance to attack by __________ slag. None of these Lime Basic Acid None of these Lime Basic Acid ANSWER DOWNLOAD EXAMIANS APP
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