Refractory Technology Highest melting (m.p = 3070°C) oxide refractory is Magnesia Thoria Alumina Zirconia Magnesia Thoria Alumina Zirconia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of refractories depends upon its All of these Texture Firing temperature Composition All of these Texture Firing temperature Composition ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High density refractory bricks have lower Thermal conductivity Spalling resistance Fusion point Slag penetration resistance Thermal conductivity Spalling resistance Fusion point Slag penetration resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay refractories All of these Combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming fusible aluminates silicates etc Shrink during firing Are not resistant to the action of basic slags All of these Combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming fusible aluminates silicates etc Shrink during firing Are not resistant to the action of basic slags ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Skull is not formed on the carbon blocks in the hearth of a blast furnace, when it becomes cold, becaus of its High crushing strength Non-wetting characteristic High thermal conductivity None of these High crushing strength Non-wetting characteristic High thermal conductivity None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ nozzles are used in continuous casting of steel, Beryllia Thoria Zircon Carborundum Beryllia Thoria Zircon Carborundum ANSWER DOWNLOAD EXAMIANS APP
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