Refractory Technology Fireclay bricks is not used for lining the Gas producer Roof of open hearth furnace Cupola Bottom of hot metal mixer Gas producer Roof of open hearth furnace Cupola Bottom of hot metal mixer ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Colour of fireclay bricks is Black Light buff to reddish buff None of these Yellow Black Light buff to reddish buff None of these Yellow ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Semi-silica bricks compared to silica bricks have Better spalling resistance Both A & B Less fusion point Neither A nor B Better spalling resistance Both A & B Less fusion point Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite refractories have low resistance to Attack by basic slag Both B and C Disintegration on sudden change of temperature Abrasion Attack by basic slag Both B and C Disintegration on sudden change of temperature Abrasion ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of fireclay refractories is __________ percent. 25-35 35-50 43961 44129 25-35 35-50 43961 44129 ANSWER DOWNLOAD EXAMIANS APP
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