Refractory Technology Spalling of a refractory means its Resistancce to compressive loads Softening Resistance to chemical action of gases and molten fluxes Fracture due to uneven expansion at high temperature Resistancce to compressive loads Softening Resistance to chemical action of gases and molten fluxes Fracture due to uneven expansion at high temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not a high alumina refractory? Corrundum Mullite Bauxite Dolomite Corrundum Mullite Bauxite Dolomite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Quartz is Transformed to crystoballite on heating above 1470°C Converted to tridymite on firing between 870 to 1470°C Stable form of silica upto 870°C All of these Transformed to crystoballite on heating above 1470°C Converted to tridymite on firing between 870 to 1470°C Stable form of silica upto 870°C All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pyrometric cone equivalent (PCE) of a refractory is the measure of its Fusion point Resistance to carbon monoxide attack Spalling resistance Resistance to slag penetration Fusion point Resistance to carbon monoxide attack Spalling resistance Resistance to slag penetration ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not an acidic refractory? Silica High alumina refractory Fireclay Carbon black Silica High alumina refractory Fireclay Carbon black ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Furnace atmosphere for softening temperature determination of refractories (in which segar cones are placed) should be Neither A nor B Either A or B Oxidising Neutral Neither A nor B Either A or B Oxidising Neutral ANSWER DOWNLOAD EXAMIANS APP
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