Refractory Technology Crushing strength of a refractory Decreases with rise in service temperature Is unaffected with change in service temperature Decreases with increase in porosity Increases with rise in service temperature Decreases with rise in service temperature Is unaffected with change in service temperature Decreases with increase in porosity Increases with rise in service temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ is not a single oxiderefractory. Zirconia Magnesia Silicon carbide None of these Zirconia Magnesia Silicon carbide None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are never used in the Beehive oven Zinc roaster Lead blast furnace Coke oven walls Beehive oven Zinc roaster Lead blast furnace Coke oven walls ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one contains maximum percentage of Al2O₃ ? Sillimanite Aluminous firebrick Magnesite Firebrick Sillimanite Aluminous firebrick Magnesite Firebrick ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks is not used for lining the Bottom of hot metal mixer Roof of open hearth furnace Cupola Gas producer Bottom of hot metal mixer Roof of open hearth furnace Cupola Gas producer ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Zirconia refractory Does not react with basic slags Has poor electrical conductivity at high temperature Can not be used as an insulator Is produced from baddeleyite Does not react with basic slags Has poor electrical conductivity at high temperature Can not be used as an insulator Is produced from baddeleyite ANSWER DOWNLOAD EXAMIANS APP
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