Refractory Technology Silica refractories are not used in Coke oven walls Beehive coke ovens Dome and upper portion of B.F. stoves Open hearth furnace roof Coke oven walls Beehive coke ovens Dome and upper portion of B.F. stoves Open hearth furnace roof 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 Electrical conductivity Fusion point Cost Thermal conductivity Electrical conductivity Fusion point Cost Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of a refractory does not depend upon its Texture Firing temperature Shape Composition Texture Firing temperature Shape Composition ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion point of a basic refractory material is Increased by the addition of acid oxides Always less than 1000°C Not affected by the addition of acid oxides Reduced by the addition of acid oxides Increased by the addition of acid oxides Always less than 1000°C Not affected by the addition of acid oxides Reduced by the addition of acid oxides ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ is not a single oxiderefractory. None of these Magnesia Silicon carbide Zirconia None of these Magnesia Silicon carbide Zirconia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Rotary kilns meant for calcination of limestone are lined with chrome magnesite in __________ zone. Cooling Preheating All of these Burning Cooling Preheating All of these Burning ANSWER DOWNLOAD EXAMIANS APP
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