Refractory Technology Fireclay bricks are not used in the Beehive coke oven By-product coke oven walls Coke oven regenerators Combustion chamber of B.F. stoves Beehive coke oven By-product coke oven walls Coke oven regenerators Combustion chamber of B.F. stoves ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower part of hot metal mixer are lined with __________ bricks. Superduty fireclay Silica High alumina Carborundum Superduty fireclay Silica High alumina Carborundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology PCE value (Segar cone) of superduty refractories is more than 33, which is equivalent to a temperature of __________ °C. 1730 1630 1520 1670 1730 1630 1520 1670 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica refractories Have lower thermal conductivity than fireclay bricks All of these Can not be used in the dome of hot blast stoves Crack when subjected to sudden change of temperature Have lower thermal conductivity than fireclay bricks All of these Can not be used in the dome of hot blast stoves Crack when subjected to sudden change of temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion point of a basic refractory material is Not affected by the addition of acid oxides Increased by the addition of acid oxides Reduced by the addition of acid oxides Always less than 1000°C Not affected by the addition of acid oxides Increased by the addition of acid oxides Reduced by the addition of acid oxides Always less than 1000°C ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which form of silica has the highest specific gravity? Quartz Cristobalite Tridymite All of these Quartz Cristobalite Tridymite All of these ANSWER DOWNLOAD EXAMIANS APP
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