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Remelting of pig iron with limestone and coke to manufacture cast iron is carried out in a ____________

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Remelting of pig iron with limestone and coke to manufacture cast iron is carried out in a ____________

(a) Flask

(b) Blast furnace

(c) Cupola furnace

(d) Ball mill

I have been asked this question in an interview.

The origin of the question is Ferrous Metals in section Air Conditioning, Thermal Insulation, Stones & Ferrous Metals of Construction & Building Materials

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Right choice is (c) Cupola furnace

Explanation: Remelting of pig iron with limestone and coke to manufacture cast iron is carried out in a cupola furnace. It has a smaller size than the blast furnace and its shape is cylindrical.

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