Test piece for determination of RUL of a refractory is heated in a/an____________________?
Correct answer: D. Electric furnace
- A. Oxidising atmosphere
- B. Reducing atmosphere
- C. Neutral atmosphere
- D. Electric furnace
Explanation
Refractoriness under load is determined by heating a loaded test piece at a controlled rate in an electric furnace until specified deformation occurs. The test is therefore associated with an electric furnace rather than a particular combustion atmosphere.
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