Q1: If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced, is called

ANS:C - White or forge pig

Pig iron is an intermediate product of the iron industry. Pig iron has a very high carbon content, typically 3.5 "4.5%, along with silica and other constituents of dross, which makes it very brittle, and not useful directly as a material except for limited applications.