Refractory Technology Presence of MgO in alumino-silicate refractories __________ its refractoriness. Increases Does not affect Either A or B; depends on its quantity Lowers Increases Does not affect Either A or B; depends on its quantity Lowers ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are used in the All of these Furnaces allowed to cool frequently Flues Chimney linings All of these Furnaces allowed to cool frequently Flues Chimney linings ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology To resist spalling tendency, a refractory should have All of these Low thermal co-efficient of expansion Greater diffusivity Low specific heat All of these Low thermal co-efficient of expansion Greater diffusivity Low specific heat ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Alumina-graphite bricks are used for lining the Neither A nor B Slide gate in teeming laddies Both A & B Continuous casting systems Neither A nor B Slide gate in teeming laddies Both A & B Continuous casting systems ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which brick undergoes maximum shrinkage on drying? Magnesite bricks Chromite bricks Fireclay bricks Tar bonded dolomite bricks Magnesite bricks Chromite bricks Fireclay bricks Tar bonded dolomite bricks 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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