When there are small differences between the heights of two successive high tides or two low tides, in a tidal day, the tides are called __________.
Official USCG Answer & Rule Citation
Correct Answer: Option B — semidiurnal
Under USCG National Maritime Center examination standards, the accepted correct answer is: semidiurnal.
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.