Refractory Technology Maximum alumina content in high alumina refractory can be as high as __________ percent. 30 90 50 70 30 90 50 70 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pyrometric cone equivalent (PCE) value (Segar cone) of 'superduty refractories' is more than 33 which corresponds to a temperature of __________ °C. 1630 1730 1670 1520 1630 1730 1670 1520 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Firing of refractory brick is done to All of these Dehydrate the dried refractory Develop stable mineral forms in them Form ceramic bonds necessary for development of high crushing strength in the finished product All of these Dehydrate the dried refractory Develop stable mineral forms in them Form ceramic bonds necessary for development of high crushing strength in the finished product ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal spalling mainly occurs during __________ of furnaces. Cooling down Neither A nor B Both A & B Warming up Cooling down Neither A nor B Both A & B Warming up ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chromite refractories are Neutral refractory Fired at a temperature of 600°C only Acidic refractory Basic refractory Neutral refractory Fired at a temperature of 600°C only Acidic refractory Basic refractory ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm² ) is __________ °C. >2000 500 1000 >1350 >2000 500 1000 >1350 ANSWER DOWNLOAD EXAMIANS APP
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