Multiple choice technology

The purpose of tumbler gears in lathe is to

  1. Give desired direction of movement to the lathe carriage

  2. Reduce spindle speed

  3. Cut threads

  4. Cut gears
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A Correct answer
Explanation

Tumbler gears are idler gears in the lathe gear train that reverse the direction of rotation without changing the speed, allowing the carriage to move in the opposite direction when needed.

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