Refractory Technology Resistance to slag attack of a refractory Depends on the nature of slag & refractory Decreases, if defective joints & cracks exist in the refractory All of these Decreases at higher temperature Depends on the nature of slag & refractory Decreases, if defective joints & cracks exist in the refractory All of these Decreases at higher temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories subjected to alternate cycles of heating & cooling are liable to loose their resistance to Slag attack Thermal spalling Fusion under load CO attack Slag attack Thermal spalling Fusion under load CO attack ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory materials are never used in the construction of Ovens & retorts Segar cones Pressure vessels Orton cones Ovens & retorts Segar cones Pressure vessels Orton cones ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with __________ bricks. Bakelite impregnated or fused periclase Fireclay Silica Semi-silica Bakelite impregnated or fused periclase Fireclay Silica Semi-silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of fireclay bricks is about __________ kgf/cm². 200-400 100-150 50-100 500-1000 200-400 100-150 50-100 500-1000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ferromagnetic ceramic material is not used in the Thermal insulation Magnetic switches Transformers Television sets Thermal insulation Magnetic switches Transformers Television sets ANSWER DOWNLOAD EXAMIANS APP
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