Refractory Technology An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture? Sand Saw dust Cork Chemically prepared foam Sand Saw dust Cork Chemically prepared foam ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An ideal refractory should have high Shrinkage ability Fusion point None of these Spalling rate Shrinkage ability Fusion point None of these Spalling rate ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hot blast main (carrying air at 1000°C) in blast furnace are lined with __________ bricks. Zirconia Fireclay Silica Magnesite Zirconia Fireclay Silica Magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the Neither A nor B Both A & B Corrosion by layer of slag Washing action of metal Neither A nor B Both A & B Corrosion by layer of slag Washing action of metal ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which furnace consumes maximum refractory annually in an integrated steel plant? Soaking pit Coke ovens Blastfurnace L.D. converter Soaking pit Coke ovens Blastfurnace L.D. converter ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pyrometric cone equivalent (PCE) of a refractory is the measure of its Fusion point Resistance to slag penetration Resistance to carbon monoxide attack Spalling resistance Fusion point Resistance to slag penetration Resistance to carbon monoxide attack Spalling resistance ANSWER DOWNLOAD EXAMIANS APP
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