Refractory Technology Thermal diffusivity of a refractory brick is high, when its __________ is high. Specific heat Density None of these Thermal conductivity Specific heat Density None of these Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The linear thermal expansion of __________ bricks upto 1000 °C is very low of the order of ≤ 0.5 percent. Magnesite Silica Fireclay Corundum Magnesite Silica Fireclay Corundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite bricks are used in those parts of furnaces, which are Subjected to temperature fluctuation Subjected to high load Required to resist corrosive basic slag None of these Subjected to temperature fluctuation Subjected to high load Required to resist corrosive basic slag None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which property of refractories is the most important for top section of the blast furnace? Stability of volume at high temperature Resistance to corrosion by slag Resistance to slag peneration Resistance to abrasion Stability of volume at high temperature Resistance to corrosion by slag Resistance to slag peneration Resistance to abrasion ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An ideal refractory should have high None of these Shrinkage ability Fusion point Spalling rate None of these Shrinkage ability Fusion point Spalling rate ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ramming masses are used for Both A & B Obtaining monolithic working faces Neither A nor B Repairing construction of various furnace parts Both A & B Obtaining monolithic working faces Neither A nor B Repairing construction of various furnace parts ANSWER DOWNLOAD EXAMIANS APP
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