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Physics Medium Uploaded: 09 Jul 2026

In a micrometer screw gauge, the ratchet is used to:

  • A Measure mass
  • B Prevent over-tightening
  • C Read the main scale
  • D Convert mm into cm
Correct Answer: Option B — Prevent over-tightening
Explanation:
The ratchet prevents excessive tightening by producing a click when the micrometer is ready to read.
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Submitted by: PaperMCQs
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