railway RRB JE (CBT I + CBT II) Mock Test 2024 Production Engineering (Manufacturing) Machining Processes and Machine Tools
Surface finish produced by electrochemical grinding on ‘Tungsten carbide’ can be expected to be of the order of ______ micron.
1
0.1 to 0.2
2
0.2 to 0.4
3
0.4 to 0.8
4
0.8 to 0.9