What is the range of efficiency of cupola?(a) 20% to 40%(b) 30% to 50%(c) 40% to 60%(d) 50% to 70%I got this question in exam.Enquiry is from Zones and Efficiency of Cupola in chapter Metal Furnace and Practice of Casting-Forming-Welding II

What is the range of efficiency of cupola?(a) 20% to 40%(b) 30% to 50%

1.	What is the range of efficiency of cupola?(a) 20% to 40%(b) 30% to 50%(c) 40% to 60%(d) 50% to 70%I got this question in exam.Enquiry is from Zones and Efficiency of Cupola in chapter Metal Furnace and Practice of Casting-Forming-Welding II
Answer» The correct choice is (b) 30% to 50% To ELABORATE: The EFFICIENCY of cupola is decided by factors LIKE heat USED in preheating, heat used in coke, heat used in oxidation and heat in the air blast. The efficiency of a cupola varies from 30% to 50%.

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What is the range of efficiency of cupola?(a) 20% to 40%(b) 30% to 50%(c) 40% to 60%(d) 50% to 70%I got this question in exam.Enquiry is from Zones and Efficiency of Cupola in chapter Metal Furnace and Practice of Casting-Forming-Welding II

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