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