How much is the thermal efficiency of a direct arc furnace?(a) 50%(b) 60%(c) 70%(d) 80%I got this question at a job interview.This is a very interesting question from Direct Arc Furnace in chapter Metal Furnace and Practice of Casting-Forming-Welding II

How much is the thermal efficiency of a direct arc furnace?(a) 50%(b)

1.	How much is the thermal efficiency of a direct arc furnace?(a) 50%(b) 60%(c) 70%(d) 80%I got this question at a job interview.This is a very interesting question from Direct Arc Furnace in chapter Metal Furnace and Practice of Casting-Forming-Welding II
Answer» The correct option is (C) 70% To EXPLAIN: In a direct arc furnace, the analysis of the melt can be accurately calculated and its efficiency can go as HIGH as up to 70%.

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How much is the thermal efficiency of a direct arc furnace?(a) 50%(b) 60%(c) 70%(d) 80%I got this question at a job interview.This is a very interesting question from Direct Arc Furnace in chapter Metal Furnace and Practice of Casting-Forming-Welding II

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