Refractory Technology Furnace atmosphere for softening temperature determination of refractories (in which segar cones are placed) should be Neither A nor B Either A or B Oxidising Neutral Neither A nor B Either A or B Oxidising Neutral ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite refractories have low resistance to Both B and C Attack by basic slag Disintegration on sudden change of temperature Abrasion Both B and C Attack by basic slag Disintegration on sudden change of temperature Abrasion ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Highest melting (m.p = 3070°C) oxide refractory is Thoria Zirconia Alumina Magnesia Thoria Zirconia Alumina Magnesia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories used in/for __________ should have low thermal conductivity. Coke ovens Insulation Muffle furnaces Regenerators Coke ovens Insulation Muffle furnaces Regenerators ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Addition of grog in fireclay brick during its manufacture is advantageous, because it results in Less addition of water to get a workable plasticity & lesser time required for drying the raw refractories and hence increased rate of production All of these High strength & thermal spalling resistance Less shrinkage in heating, decreased apparent porosity & increased specific gravity Less addition of water to get a workable plasticity & lesser time required for drying the raw refractories and hence increased rate of production All of these High strength & thermal spalling resistance Less shrinkage in heating, decreased apparent porosity & increased specific gravity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chrome magnesite bricks are Having higher RUL than silica bricks Acidic in nature Neutral in nature Made by mixing 30% chromite and 70% periclase Having higher RUL than silica bricks Acidic in nature Neutral in nature Made by mixing 30% chromite and 70% periclase ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS