2. Refractoriness under load (RUE) is the most important property for the refractory bricks
o used in the roof of the furnace
o at the hearth bottom of the furnace on which stock is placed
o used for furnace insulation
o none of these
Ans: B
o used in the roof of the furnace
o at the hearth bottom of the furnace on which stock is placed
o used for furnace insulation
o none of these
Ans: B
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