Which is the iron ore processed in blast furnaces?
(a) Hematite
(b) Magnesia
(c) Alumina
(d) Silica
This question was posed to me by my school principal while I was bunking the class.
Query is from Sintering and Compacting, Pig Iron and its Manufacture topic in division Testing of Materials, Foundry & Powder Metallurgy of Engineering Material & Metallurgy