Refractory Technology Magnesite bricks have poor resistance to attack by __________ slag. Basic Acid None of these Lime Basic Acid None of these Lime ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one expands on heating? Both A & B Neither A nor B Silica bricks Fireclay bricks Both A & B Neither A nor B Silica bricks Fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which property is important for bricks used in the combustion chamber & dome of blast furnace stoves? High resistance to spalling High strength and density All of these High refractoriness High resistance to spalling High strength and density All of these High refractoriness ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not a high alumina refractory material? Diaspore Periclase Kyanite Sillimanite Diaspore Periclase Kyanite Sillimanite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion point of a basic refractory material is Increased by the addition of acid oxides Not affected by the addition of acid oxides Always less than 1000°C Reduced by the addition of acid oxides Increased by the addition of acid oxides Not affected by the addition of acid oxides Always less than 1000°C Reduced by the addition of acid oxides ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling tendency of refractories is reduced by increasing its Specific gravity Porosity Strength Thermal conductivity Specific gravity Porosity Strength Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS