Multiple choice

In a metering outside micrometer, the distance moved on spindle during one rotation of thimble is

  1. 0.5 mm

  2. 1 mm

  3. 0.1 mm

  4. none of these
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A Correct answer
Explanation

In a standard metric micrometer, the pitch of the spindle screw is 0.5 mm, meaning one full rotation of the thimble advances the spindle by 0.5 mm.

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