Test specimen for determination of refractoriness under load (RUL) of – McqOptions

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1.	Test specimen for determination of refractoriness under load (RUL) of a refractory is heated in a$?
A.	Furnace employing neutral atmosphere
B.	Carbon resistance furnace
C.	Reducing atmosphere
D.	Furnace employing negative pressure
Answer» C. Reducing atmosphere

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