1.

The impurities are burnt from which material in an open hearth furnace to produce steel?(a) Cast iron(b) Gray iron(c) Pig iron(d) Copper

Answer» Right answer is (c) Pig iron

The best I can explain: The materials such as high carbon content or other impurities which are present inside the pig iron are burnt in order to obtain steel.


Discussion

No Comment Found

Related InterviewSolutions