6733Chemical EngineeringMedium
Pick out the wrong statement?
AInduction hardening and flame hardening techniques are also used for surface hardening
BLow carbon steel does not respond to the heat treatment for hardening of the material, hence it
CBoth annealing and normalising release the internal stresses of the material besides improving
DMartempering of a material is a hardening process
Correct answer
A. Induction hardening and flame hardening techniques are also used for surface hardening
Explanation
The correct answer is Induction hardening and flame hardening techniques are also used for surface hardening.