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What is the minimum capacity of an open hearth furnace in steel foundries?(a) 5 tons(b) 4 tons(c) 6 tons(d) 3 tons |
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Answer» The correct choice is (a) 5 tons Easy explanation: Open hearth process was primarily used only for steel making, it was later brought to use in steel foundries. The minimum capacity of open hearth furnace in steel foundries is 5 tons. |
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