Refractory Technology Fusion temperature of pure silica (SiO₂) is __________ °C. 2570 2800 1715 1350 2570 2800 1715 1350 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Rate of slag attack on refractories increases with rise in temperature due to the Increased thermal conductivity of brick Decreased viscosity of slag Oxidising condition in the furnace None of these Increased thermal conductivity of brick Decreased viscosity of slag Oxidising condition in the furnace None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thoria is an expensive refractory material and is radioactive in nature. Thorium oxide is used in the manufacture of Crucibles used for melting of high purity metals Insulating bricks Muffles for muffle furnaces Segar cones Crucibles used for melting of high purity metals Insulating bricks Muffles for muffle furnaces Segar cones ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chrome magnesite is not used in the All of these Inner lining of L.D. converter Wear out lining of steel melting furnaces Aluminium melting furnaces All of these Inner lining of L.D. converter Wear out lining of steel melting furnaces Aluminium melting furnaces ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories are exclusively used in the Regenerators of coke oven Hearth of blast furnace Walls of coke oven Side wall of soaking pits Regenerators of coke oven Hearth of blast furnace Walls of coke oven Side wall of soaking pits ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase refractory contains mainly SiO₂ CaO MgO Al2O₃ SiO₂ CaO MgO Al2O₃ ANSWER DOWNLOAD EXAMIANS APP
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