Q
Refractoriness under load (RUL) is the most important property for the refractory bricks_________________?
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A
A. At the hearth bottom of the furnace on which stock is placed
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B
B. Used for furnace insulation
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C
C. Used in the roof of the furnace
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D
D. None of these
Correct Answer:
A. A. At the hearth bottom of the furnace on which stock is placed