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The electric furnace used in the electric process to manufacture steel is lined with _________ material.

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The electric furnace used in the electric process to manufacture steel is lined with _________ material.

(a) Basic refractory

(b) Basic non-refractory

(c) Acidic refractory

(d) Acidic non-refractory

The question was posed to me during an interview for a job.

My enquiry is from Steel topic in portion Steel, Timber, Mortar, Plastics, Non-Ferrous Metals and Alloys of Construction & Building Materials

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Correct choice is (a) Basic refractory

Best explanation: The electric furnace used in the electric process to manufacture steel is lined with basic refractory material. It is either rectangular or circular in shape and is made of steel plates. In the electric process, electricity is used to heat and melt the metal.

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