Refractory Technology Carbon refractories have very high Refractoriness Wetting characteristics Thermal conductivity Both B and C Refractoriness Wetting characteristics Thermal conductivity Both B and C ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not a high alumina refractory? Mullite Bauxite Corrundum Dolomite Mullite Bauxite Corrundum Dolomite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Semi-silica bricks compared to silica bricks have Both A & B Less fusion point Better spalling resistance Neither A nor B Both A & B Less fusion point Better spalling resistance Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling resistance of a refractory can not be increased by Increasing its porosity Decreasing its thermal co-efficient of expansion Making it denser Using a coarser grog during its manufacture Increasing its porosity Decreasing its thermal co-efficient of expansion Making it denser Using a coarser grog during its manufacture ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion point of a basic refractory material is Always less than 1000°C Reduced by the addition of acid oxides Not affected by the addition of acid oxides Increased by the addition of acid oxides Always less than 1000°C Reduced by the addition of acid oxides Not affected by the addition of acid oxides Increased by the addition of acid oxides ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are never used in the Coke oven walls Lead blast furnace Zinc roaster Beehive oven Coke oven walls Lead blast furnace Zinc roaster Beehive oven ANSWER DOWNLOAD EXAMIANS APP
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