railway RRB JE (CBT I + CBT II) Mock Test 2024 Production Engineering (Manufacturing) Machining Processes and Machine Tools Machine Tools
Gearing ratio used for thread cutting on lathe machine is the ratio of
1
Speed of lead screw to speed of workpiece
2
Speed of workpiece to speed of lead screw
3
Lead of lead screw threads to lead of screw to be cut
4
Driven to driver