A reading of 0.625 inch on a micrometer with a 2 to 3 inch range would be equal to __________.
Official USCG Answer & Rule Citation
Correct Answer: Option A — 2 5/8 inches
A micrometer with a 2 to 3 inch range has a base setting of 2 inches. Adding the reading of 0.625 inches results in 2.625 inches. Since 0.625 is equivalent to the fraction 5/8, the total measurement is 2 5/8 inches, a standard fractional conversion for machinist tools.
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