Refractory Technology Bauxite calcining rotary kilns are lined with __________ bricks. 85% alumina Fireclay Corundum Carbon 85% alumina Fireclay Corundum Carbon ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Insulating refractories should have Both A & B Neither A nor B High porosity Low thermal conductivity Both A & B Neither A nor B High porosity Low thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hot blast main (carrying air at 1000°C) in blast furnace are lined with __________ bricks. Magnesite Silica Fireclay Zirconia Magnesite Silica Fireclay Zirconia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Furnace atmosphere for softening temperature determination of refractories (in which segar cones are placed) should be Either A or B Neutral Neither A nor B Oxidising Either A or B Neutral Neither A nor B Oxidising ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractory blocks Are acidic in nature All of these Are used in the hearth of blast furnace Are wetted by molten iron Are acidic in nature All of these Are used in the hearth of blast furnace Are wetted by molten iron ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica upto 1470°C ? Tridymite Quartz Cristobalite None of these Tridymite Quartz Cristobalite None of these ANSWER DOWNLOAD EXAMIANS APP
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