Question

The amount of carbon present in wrought iron is ___________

(a) 3% to 4%

(b) Trace to 0.08%

(c) 0.30% to 0.70%

(d) 2.2% to 4.5%

I got this question during an interview.

My question is from Properties of Steel and its Alloys in section Steel and its Alloys of Aerospace Materials & Processes

Answer 1

Correct choice is (b) Trace to 0.08%

For explanation: Iron and steel can be categorized based on the amount of carbon present. Wrought iron contains trace to 0.08% of carbon. Medium carbon steel contains 0.30% to 0.70% of carbon. Cast iron contains 2.2% to 4.5% of carbon.