Refractory Technology Hollow refractory bricks are made by Pressing/machine moulding Extrusion Slip casting Hand moulding Pressing/machine moulding Extrusion Slip casting Hand moulding ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories Are not attacked by slags, as they are not wetted by melts Do not resist temperature fluctuations Do not burn/oxidise, when exposed to air on heating Have extremely low thermal & electrical conductivities Are not attacked by slags, as they are not wetted by melts Do not resist temperature fluctuations Do not burn/oxidise, when exposed to air on heating Have extremely low thermal & electrical conductivities ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of fireclay bricks is about __________ kgf/cm². 100-150 500-1000 200-400 50-100 100-150 500-1000 200-400 50-100 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory bricks with lower permeability is produced by using Finer grog size All of these Higher moulding pressure Higher firing temperature Finer grog size All of these Higher moulding pressure Higher firing temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Tar dolomite bricks are used in the All of these Electric furnaces Basic open hearth furnace Basic Bessemer converter All of these Electric furnaces Basic open hearth furnace Basic Bessemer converter ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pure oxide refractories are generally monocrystaliine in nature and are self bonded __________ bricks are generally used as moderator in nuclear reactors. Beryllia Carborundum Thoria Corundum Beryllia Carborundum Thoria Corundum ANSWER DOWNLOAD EXAMIANS APP
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