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The lead screw of a lathe has threads

This question belongs to Mechanical Engineering Manufacturing And Production Technology
Manufacturing and Production Technology
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The lead screw of a lathe has _________ threads.

Answer & Solution
Correct Answer: Option A
A single-start thread has one continuous thread running along the body of the screw A trapezoidal thread is used in the leadscrew of lathe machine. It has a 30 degree included angle. Stronger at the root. Easy to manufacture compared to square thread.
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