On 27 April 1983, at 1105 DST (ZD +4), what will be the predicted height of tide at Falkner Island, CT?
Official USCG Answer & Rule Citation
Correct Answer: Option A — 5.3 feet (1.6 m)
Tide prediction requires interpolating between high and low water data from the Tide Tables. Using the Rule of Twelfths or the provided tidal curves for Falkner Island, the height at 1105 DST is determined to be 5.3 feet, accounting for the specific time interval from the nearest tide.
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