2. Solved Papers
  3. Uttarakhand PMT

Uttarakhand PMT Uttarakhand PMT Solved Paper-2004

  • question_answer
    Railway wagon axles are made by heating iron rods embedded in charcoal powder. This process is known as:

    A)  tempering  

    B)  anneling

    C)  sherardising

    D)  case hardening

    Correct Answer: D

    Solution :

     In case hardening technique, iron rods embedded in charcol powder are heated repeatedly and thus, this technique is used in making axles of railway wagon.


You need to login to perform this action.
You will be redirected in 3 sec spinner