Lead screw of lathe have double start thread with a pit - Practice (English)

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Lead screw of lathe have double start thread with a pit - Practice (English) | ObjectiveMcq

PracticeManufacturing EngineeringBasicsLead screw of lathe have double sta...

Basics Manufacturing EngineeringEasy

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Lead screw of lathe have double start thread with a pitch of 4mm. What should be the ratio of speed between lead screw and spindle for producing a single start thread of 2 mm pitch?

Correct Answer: B — 1:4

Explanation:

Number of starts and pitch of lathe is directly proportional to speed of spindle required.

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