Refractory Technology Pyrometric cone equivalent (PCE) of a refractory is the measure of its Spalling resistance Resistance to carbon monoxide attack Fusion point Resistance to slag penetration Spalling resistance Resistance to carbon monoxide attack Fusion point Resistance to slag penetration ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hot metal runner in blast furnace are lined with __________ bricks. Magnesite Silica Fireclay Carborundum Magnesite Silica Fireclay Carborundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ceramic recuperators used for waste heat recovery from high temperature flue gas going out of the furnace is made of Fireclay Corrundum Siliceous fireclay Silicon carbide Fireclay Corrundum Siliceous fireclay Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories Do not burn/oxidise, when exposed to air on heating Have extremely low thermal & electrical conductivities Do not resist temperature fluctuations Are not attacked by slags, as they are not wetted by melts Do not burn/oxidise, when exposed to air on heating Have extremely low thermal & electrical conductivities Do not resist temperature fluctuations Are not attacked by slags, as they are not wetted by melts ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture? Chemically prepared foam Saw dust Sand Cork Chemically prepared foam Saw dust Sand Cork ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with __________ bricks. Fireclay Silica Bakelite impregnated or fused periclase Semi-silica Fireclay Silica Bakelite impregnated or fused periclase Semi-silica ANSWER DOWNLOAD EXAMIANS APP
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