Consider the following statements In comparison to hot working, in cold working,
1. Higher forces are required
2. No heating is required
3. Less ductility is required
4. Better surface finish is obtained
Which of the statements given above are correct?
(a) 1, 2 and 3 (b) 2 and 4
(c) 1 and 3 (d) 2, 3 and 4