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The smelting zone of the furnace is called as _________

(a) Tuyere

(b) Inwall

(c) Bosh

(d) Hearth

I have been asked this question in an international level competition.

I want to ask this question from Sintering and Compacting, Pig Iron and its Manufacture topic in division Testing of Materials, Foundry & Powder Metallurgy of Engineering Material & Metallurgy

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The correct answer is (c) Bosh

Explanation: The Bosh is the smelting zone and the hottest part of the furnace. It extends upwards from the tuyere level and has an outward slope of 20 degrees with a height of about 3.6 meters.

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