Refractory Technology Which of the following bricks has the most close values of RUL and PCE? Tar dolomite bricks High alumina bricks Fireclay bricks Silica bricks Tar dolomite bricks High alumina bricks Fireclay bricks Silica bricks 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 Washing action of metal Both A & B Corrosion by layer of slag Neither A nor B Washing action of metal Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With decrease in porosity, the __________ of the refractories decreases. None of these Strength Spalling resistance Thermal conductivity None of these Strength Spalling resistance Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology RUL of refractories depends on the All of these Presence of impurities like iron & alkali Chemical composition Physical structure All of these Presence of impurities like iron & alkali Chemical composition Physical structure ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one contains maximum percentage of Al2O₃ ? Sillimanite Aluminous firebrick Magnesite Firebrick Sillimanite Aluminous firebrick Magnesite Firebrick ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chromite refractories are used in Neither A nor B Both A & B Bottom of soaking pits Between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other Neither A nor B Both A & B Bottom of soaking pits Between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other ANSWER DOWNLOAD EXAMIANS APP
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