Refractory Technology Refractory bricks with lower permeability is produced by using Finer grog size Higher moulding pressure Higher firing temperature All of these Finer grog size Higher moulding pressure Higher firing temperature All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Except __________ , all other refractories are bad conductors of electricity (i.e, have low electrical conductivity). Graphite Chromite Fireclay Carborundum Graphite Chromite Fireclay Carborundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is required in an insulating refractory? High thermal conductivity Neither A nor B Both A & B Low porosity High thermal conductivity Neither A nor B Both A & B Low porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness of a typical silica brick corresponds to Segar cone number, '32', which is equivalent to a temperature of __________ °C. 1380 1710 1520 1915 1380 1710 1520 1915 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Firing of refractory brick is done to Develop stable mineral forms in them Form ceramic bonds necessary for development of high crushing strength in the finished product Dehydrate the dried refractory All of these Develop stable mineral forms in them Form ceramic bonds necessary for development of high crushing strength in the finished product Dehydrate the dried refractory All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the alumina content, the refractoriness of high alumina refractories Decreases Remains same May increase or decrease Increases Decreases Remains same May increase or decrease Increases ANSWER DOWNLOAD EXAMIANS APP
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