Arc and Gas Welding MCQ with Answers

Arc and Gas Welding MCQ with Answers

11) Which type of hardening used eddy current in the metal bar?

Answer is:

Induction hardening

12) Which type of hardening used for cam shaft production?

Answer is:

Induction hardening

13) Which one is the heat treatment process?

Answer is:

Annealing

14) Which quenching media applied in the flame hardening process?

Answer is:

Water spray

15) What is the purpose of hardening?

Answer is:

Increase strength