Refractory Technology Alumina-graphite bricks are used for lining the Neither A nor B Continuous casting systems Both A & B Slide gate in teeming laddies Neither A nor B Continuous casting systems Both A & B Slide gate in teeming laddies ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following impurities reduces the refractoriness of magnesite bricks? CaO SiO₂ All of these Al2O₃ CaO SiO₂ All of these Al2O₃ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the Corrosion by layer of slag Neither A nor B Both A & B Washing action of metal Corrosion by layer of slag Neither A nor B Both A & B Washing action of metal ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of fireclay bricks is about __________ kgf/cm². 50-100 100-150 500-1000 200-400 50-100 100-150 500-1000 200-400 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The main raw material for manufacture of silicon carbide refractories is Corrundum Bauxite Periclase Carborundum Corrundum Bauxite Periclase Carborundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With decrease in porosity, the __________ of the refractories decreases. Thermal conductivity None of these Spalling resistance Strength Thermal conductivity None of these Spalling resistance Strength ANSWER DOWNLOAD EXAMIANS APP
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