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 measurement of 2 inches. Adding the 0.625 inch reading results in a total of 2.625 inches. Since 0.625 is the decimal equivalent of 5/8, the total measurement is 2 5/8 inches, a standard calculation for precision maritime measurements.
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