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 Hot metal runner in blast furnace are lined with __________ bricks. Silica Carborundum Magnesite Fireclay Silica Carborundum Magnesite Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which property of refractories is the most important for top section of the blast furnace? Resistance to corrosion by slag Stability of volume at high temperature Resistance to slag peneration Resistance to abrasion Resistance to corrosion by slag Stability of volume at high temperature Resistance to slag peneration Resistance to abrasion ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica bricks have low spalling resistance below 600°C, due to its High thermal diffusivity Very high thermal conductivity High co-efficient of expansion upto this temperature Low refractoriness High thermal diffusivity Very high thermal conductivity High co-efficient of expansion upto this temperature Low refractoriness ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are not used in the Coke oven regenerators By-product coke oven walls Combustion chamber of B.F. stoves Beehive coke oven Coke oven regenerators By-product coke oven walls Combustion chamber of B.F. stoves Beehive coke oven ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm² ) is __________ °C. >1350 500 1000 >2000 >1350 500 1000 >2000 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS