Question

What is the rate of melting of a low frequency induction furnace per kW rating?

(a) 2 – 3 kg/hr

(b) 2 – 3.5 kg/hr

(c) 3 – 4 kg/hr

(d) 3 – 4.5 kg/hr

The question was asked in an interview for internship.

My question is based upon Induction Furnace topic in division Metal Furnace and Practice of Casting-Forming-Welding II

Answer 1

Right answer is (b) 2 – 3.5 kg/hr

For explanation I would say: The rate of melting of a low frequency induction furnace is around 2 to 3.5 kg per hour per kilo watt rating of the furnace.