railway RRB JE (CBT I + CBT II) Mock Test 2024 Production Engineering (Manufacturing) Machining Processes and Machine Tools Different Machining Processes
Which of the following codings of a grinding wheel is correct?
1
WA 60 K 7 V
2
K WA 60 V 7
3
V 7 60 K WA
4
60 7 K V WA