Refractory Technology Except __________ , all other refractories are bad conductors of electricity (i.e, have low electrical conductivity). Fireclay Chromite Graphite Carborundum Fireclay Chromite Graphite Carborundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower part of hot metal mixer are lined with __________ bricks. Silica Superduty fireclay High alumina Carborundum Silica Superduty fireclay High alumina Carborundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of refractories depends upon its Texture Firing temperature All of these Composition Texture Firing temperature All of these Composition ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling tendency of refractories is reduced by increasing its Porosity Thermal conductivity Strength Specific gravity Porosity Thermal conductivity Strength Specific gravity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of ordinary fireclay brick is about 950 kg/cm² . On exposure to a temperature of about 1500°C, its crushing strength may come down to as low as __________ kg/cm² . 150 65 250 450 150 65 250 450 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Highest melting (m.p = 3070°C) oxide refractory is Alumina Thoria Zirconia Magnesia Alumina Thoria Zirconia Magnesia ANSWER DOWNLOAD EXAMIANS APP
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