Refractory Technology Rotary kilns meant for calcination of limestone are lined with chrome magnesite in __________ zone. All of these Burning Cooling Preheating All of these Burning Cooling Preheating ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Bottom of basic open hearth furnace are constructed of Silicon carbide bricks Dead burnt magnesite ramming mass Semi-silica bricks Porous fireclay bricks Silicon carbide bricks Dead burnt magnesite ramming mass Semi-silica bricks Porous fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pure oxide refractories are generally monocrystaliine in nature and are self bonded __________ bricks are generally used as moderator in nuclear reactors. Corundum Beryllia Carborundum Thoria Corundum Beryllia Carborundum Thoria ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Except __________ , all other refractories are bad conductors of electricity (i.e, have low electrical conductivity). Graphite Carborundum Fireclay Chromite Graphite Carborundum Fireclay Chromite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay refractories Shrink during firing All of these 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 Shrink during firing All of these 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 Most Cermets, which normally have high thermal conductivity and high thermal shock resistance, comprises of ceramic & metallic components of __________ percent respectively. 80 and 20 60 and 40 20 and 80 50 and 50 80 and 20 60 and 40 20 and 80 50 and 50 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS