Refractory Technology Magnesite refractories have low resistance to Disintegration on sudden change of temperature Attack by basic slag Both B and C Abrasion Disintegration on sudden change of temperature Attack by basic slag Both B and C Abrasion ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm² ) is __________ °C. 500 >2000 >1350 1000 500 >2000 >1350 1000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Mullite is chemically represented by Al2O₃ . 2SiO₂ 2Al2O₃ . 3SiO₂ Al2O₃ . SiO₂ 3Al2O₃ . 2SiO₂ Al2O₃ . 2SiO₂ 2Al2O₃ . 3SiO₂ Al2O₃ . SiO₂ 3Al2O₃ . 2SiO₂ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Test piece for determination of RUL of a refractory is heated in a/an Electric furnace Reducing atmosphere Neutral atmosphere Oxidising atmosphere Electric furnace Reducing atmosphere Neutral atmosphere Oxidising atmosphere ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Alumina-graphite bricks are used for lining the Slide gate in teeming laddies Neither A nor B Both A & B Continuous casting systems Slide gate in teeming laddies Neither A nor B Both A & B Continuous casting systems ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are not used in the Combustion chamber of B.F. stoves Beehive coke oven Coke oven regenerators By-product coke oven walls Combustion chamber of B.F. stoves Beehive coke oven Coke oven regenerators By-product coke oven walls ANSWER DOWNLOAD EXAMIANS APP
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