Furnace atmosphere for softening temperature determination of refracto – McqOptions

MCQOPTIONS

1.	Furnace atmosphere for softening temperature determination of refractories (in which segar cones are placed) should be
A.	oxidising
B.	neutral
C.	either (a) or (b)
D.	neither (a) nor (b)
Answer» D. neither (a) nor (b)

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