Question

Which of the following statements about electric reduction furnace is not true?

(a) It is adopted at places where electric power can be cheaply generated

(b) Less amount of fluxing material is needed

(c) Less amount of slag is created

(d) The external supply of air is essential in this type of furnace

The question was posed to me in semester exam.

I would like to ask this question from Ferrous Metals in division Air Conditioning, Thermal Insulation, Stones & Ferrous Metals of Construction & Building Materials

Answer 1

The correct option is (d) The external supply of air is essential in this type of furnace

To explain: Electric reduction furnace is adopted at places where electric power can be cheaply generated. In this, less amount of fluxing material is needed and less amount of slag is formed. The external supply of air is not essential in this type of furnace.