Refractory Technology Which is a neutral refractory? Magnesite chrome Magnesia Silica Graphite Magnesite chrome Magnesia Silica Graphite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay refractories Combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming fusible aluminates silicates etc Are not resistant to the action of basic slags All of these Shrink during firing Combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming fusible aluminates silicates etc Are not resistant to the action of basic slags All of these Shrink during firing ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which property is important for bricks used in the combustion chamber & dome of blast furnace stoves? High strength and density High refractoriness All of these High resistance to spalling High strength and density High refractoriness All of these High resistance to spalling ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chromite refractories are Acidic refractory Fired at a temperature of 600°C only Basic refractory Neutral refractory Acidic refractory Fired at a temperature of 600°C only Basic refractory Neutral refractory ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High thermal conductivity of a refractory material is not important, when it is to be used in the Muffle furnace Blast furnace Recuperators Coke oven regenarators Muffle furnace Blast furnace Recuperators Coke oven regenarators ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica upto 1470°C ? Cristobalite Quartz Tridymite None of these Cristobalite Quartz Tridymite None of these ANSWER DOWNLOAD EXAMIANS APP
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