Refractory Technology Refractory castables are used for Patch work All of these Minimising the number of joints in the structure Producing monolithic linings Patch work All of these Minimising the number of joints in the structure Producing monolithic linings ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ bricks should not be used in oxidising atmosphere. Tar dolomite Silica Fireclay Carbon Tar dolomite Silica Fireclay Carbon ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Machine moulding of dry mixture of refractories requires a pressure of the order of __________ kg/cm². 500 1000 100 10 500 1000 100 10 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ is not a single oxiderefractory. Silicon carbide None of these Magnesia Zirconia Silicon carbide None of these Magnesia Zirconia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thoria is an expensive refractory material and is radioactive in nature. Thorium oxide is used in the manufacture of Crucibles used for melting of high purity metals Insulating bricks Segar cones Muffles for muffle furnaces Crucibles used for melting of high purity metals Insulating bricks Segar cones Muffles for muffle furnaces ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories 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 Are not attacked by slags, as they are not wetted by melts ANSWER DOWNLOAD EXAMIANS APP
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