The speed of sound through ocean water is nearly always __________.
Official USCG Answer & Rule Citation
Correct Answer: Option C — faster than the speed of calibration for the fathometer
In USCG General Navigation principles (Bowditch, Light Lists, and Coast Pilots), regarding 'The speed of sound through ocean water is nearly always', the verified fact is: 'faster than the speed of calibration for the fathometer'.
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