Refractory Technology Roof of a basic electric furnace is made of __________ bricks. Superduty fireclay Chromite Silica None of these Superduty fireclay Chromite Silica None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Beryllia (which is used in making crucibles for melting uranium & thorium) is superior to alumina in all respects for high temperature (> 1900°C ) use, except Cost Thermal conductivity Fusion point Electrical conductivity Cost Thermal conductivity Fusion point Electrical conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The highest melting pure oxide (m.p. > 3000°C) is Zirconia Thoria Alumina Beryllia Zirconia Thoria Alumina Beryllia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory bricks with lower permeability is produced by using Finer grog size All of these Higher firing temperature Higher moulding pressure Finer grog size All of these Higher firing temperature Higher moulding pressure ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Roof of a basic open hearth furnace is lined with __________ bricks. Magnesite Silica Fireclay Dolomite Magnesite Silica Fireclay Dolomite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following bricks should not be used, if the furnace is to be used intermit-tantly? Silicon carbide bricks Sillimanite Firebricks Silica bricks Silicon carbide bricks Sillimanite Firebricks Silica bricks ANSWER DOWNLOAD EXAMIANS APP
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