railway RRB JE (CBT I + CBT II) Mock Test 2024 Production Engineering (Manufacturing) Machining Processes and Machine Tools Different Machining Processes
A grindstone used in a grinding machine is of diameter 210 mm and is capable of being operated at 1200 rpm. What is the maximum grinding speed possible with this machine? (π = 22/7)
1
26.4 m/s
2
13.2 m/s
3
79.2 m/s
4
6.6 m/s