engineering recuitment UKPSC Polytechnic Lecturer Mock Test 2024 Production Engineering (Manufacturing) Machining Processes and Machine Tools Different Machining Processes
A drill bit of diameter 25 mm has cutting speed of 15.7 m/min. What is the speed of rotation of drill?
1
200 RPM
2
500 RPM
3
400 RPM
4
314 RPM