General Studies · Metrology and Measurements
While measuring the diameter of a circular rod with an outside micrometer (having a pitch of 0.5 mm and 50 thimble divisions), 18 major divisions and one minor division are visible on the barrel, and the 19th thimble division coincides with the datum line. What is the diameter of the rod?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 118.11 mm
- 29.69 mm
- 39.59 mm
- 418.69 mm✓
Correct answer
18.69 mm
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