Refractory Technology Fireclay refractories All of these Shrink during firing Are not resistant to the action of basic slags Combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming fusible aluminates silicates etc All of these Shrink during firing Are not resistant to the action of basic slags Combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming fusible aluminates silicates etc ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion temperature of pure silica (SiO₂) is __________ °C. 1715 1350 2800 2570 1715 1350 2800 2570 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Zircon refractories have 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 High RUL (1600°C) and refractoriness (> 2000°C) All of these 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
Refractory Technology Which is not a basic refractory? Dolomite Silicon carbide Chrome magnesite Magnesite Dolomite Silicon carbide Chrome magnesite Magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not a high alumina refractory material? Diaspore Sillimanite Periclase Kyanite Diaspore Sillimanite Periclase Kyanite ANSWER DOWNLOAD EXAMIANS APP
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