Furnace atmosphere for softening temperature determination of refractories (in w

Question

Furnace atmosphere for softening temperature determination of refractories (in which segar cones are placed) should be

Options:

A . oxidising

B . neutral

C . either (a) or (b)

D . neither (a) nor (b)

Answer: Option C
Answer: (c).either (a) or (b)

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