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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