Refractory Technology Chrome magnesite bricks are Neutral in nature Made by mixing 30% chromite and 70% periclase Acidic in nature Having higher RUL than silica bricks Neutral in nature Made by mixing 30% chromite and 70% periclase Acidic in nature Having higher RUL than silica bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity is induced in insulating refractories by adding Calcium phosphate All of these Powdered naphthalene Ammonium chloride/sulphate Calcium phosphate All of these Powdered naphthalene Ammonium chloride/sulphate ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Firing temperature of magnesite bricks is about __________ °C. 2400-2600 800-1000 1000-1200 1600-1800 2400-2600 800-1000 1000-1200 1600-1800 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Permeability of bricks is a measure of the Melting point Expansion during heating Refractoriness Rate at which a fluid will pass through the pores Melting point Expansion during heating Refractoriness Rate at which a fluid will pass through the pores ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Except __________ , all other refractories are bad conductors of electricity (i.e, have low electrical conductivity). Graphite Carborundum Chromite Fireclay Graphite Carborundum Chromite Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is required in an insulating refractory? Low porosity Both A & B Neither A nor B High thermal conductivity Low porosity Both A & B Neither A nor B High thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
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