railway RRB JE (CBT I + CBT II) Mock Test 2024 Production Engineering (Manufacturing) Machining Processes and Machine Tools Different Machining Processes
The grooving is an operation of:
1
Reducing the diameter of a work piece over a very narrow surface
2
beveling the extreme end of a work piece
3
enlarging the end of a hole cylindrically
4
embossing a diamond shaped pattern on the surface of work piece