USCG Exam Practice · Tides and currents — predictions and corrections
Spring tides, which have the greatest tidal range, occur near which lunar phase?
- AFirst and last quarter moon
- BNew and full moon✓ correct
- CWaxing gibbous and waning gibbous moon
- DAny phase when the moon is at perigee
Why B is correct
Bowditch Ch. 9 §902 states that spring tides occur near new and full moon and have the greatest range, while neap tides occur near first and last quarter moon and have the smallest range.
Cited:Bowditch Ch. 9 §902
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