USCG Exam Practice · Tides and currents — predictions and corrections
Slack water is best described as which of the following?
- AThe period of maximum flood current just before the tide begins to ebb
- BThe brief period of zero horizontal flow at the turn of the tidal current✓ correct
- CThe period when tidal range is at its minimum during neap tides
- DThe interval between successive high waters at a given location
Why B is correct
Bowditch Ch. 9 §903 defines slack water as the brief period of zero flow at the turn of the tidal current, distinguishing it from flood (incoming) and ebb (outgoing) phases. It is not defined in terms of tidal range or the interval between high waters.
Cited:Bowditch Ch. 9 §903
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