Heat Treatment MCQ - Machinist(Set-1) with Answers

Heat Treatment MCQ - Machinist(Set-1) with Answers

31) Which one of the following is the purpose of tempering a hardened steel component ?

Answer is:

To increase toughness

32) While normalizing the steel should be cooled

Answer is:

In still air to room temperature

While normalizing the steel should be cooled

33) The process of increasing carbon percentage on the surface of Low-carbon steel is known as

Answer is:

Carburizing

34) The process of producing a component with tough and ductile core and a hard outer surface is known as

Answer is:

Case Hardening

The process of producing a component with tough and ductile core and a hard outer surface is known as

35) The process of heating steel to about 40 Degree Centigrade above the upper critical temperature and cooling it in still air to room temperature is known as

Answer is:

Normalizing

The process of heating steel to about 40 Degree Centigrade above the upper critical temperature and cooling it in still air to room temperature is known as