Refractory Technology Which is not an acidic refractory? Carbon black Silica High alumina refractory Fireclay Carbon black Silica High alumina refractory Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal spalling mainly occurs during __________ of furnaces. Warming up Both A & B Neither A nor B Cooling down Warming up Both A & B Neither A nor B Cooling down ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories have very high Wetting characteristics Refractoriness Both B and C Thermal conductivity Wetting characteristics Refractoriness Both B and C Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following consumes the maximum tonnage of refractories annually in an integrated steel plant? Ceheating furnace Rotary lime kiln L.D. converter Soaking pits Ceheating furnace Rotary lime kiln L.D. converter Soaking pits ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Graphite or carbon refractories Exihibit wetting characteristics Are not resistant to corrosion by slag Should be used in neutral or reducing atmosphere Exhibit high shrinkage on thermal treatment Exihibit wetting characteristics Are not resistant to corrosion by slag Should be used in neutral or reducing atmosphere Exhibit high shrinkage on thermal treatment ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite refractories are used for the construction of those furnaces, which are Not subjected to fluctuation in temperature Used for raising & maintaining high temperature Both (b) and © Not required to resist the corrosive action of basic slag Not subjected to fluctuation in temperature Used for raising & maintaining high temperature Both (b) and © Not required to resist the corrosive action of basic slag ANSWER DOWNLOAD EXAMIANS APP
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