railway RRB JE (CBT I + CBT II) Mock Test 2024 Production Engineering (Manufacturing) Machining Processes and Machine Tools Metal Cutting Processes
A 150 mm long, 12.5 mm diameter stainless steel rod is being reduced to a diameter of 12 mm by turning operation. The lathe spindle rotates at N = 400 rpm. Calculate the cutting speed.
1
16 m/min
2
20 m/min
3
15.7 m/min
4
31.4 m/min