Question 362Navigation General70% to pass
What is the approximate geographic range of Fenwick Island Light, Delaware, if your height of eye is 42 feet (12.8 meters)? Refer to "Reprints from the LIGHT LISTS AND COAST PILOTS".
AI Explanation
The correct answer is D) 18.3 nm.
The geographic range of a light is determined by the formula: Range (in nm) = 2.23 x √(height of eye in feet), as specified in the "Reprints from the LIGHT LISTS AND COAST PILOTS". With a height of eye of 42 feet, the calculated range is 2.23 x √42 = 18.3 nm.
The other options are incorrect because they do not match the calculated range of 18.3 nm. Option A (10.3 nm) and C (13.1 nm) are too low, while option B (15.4 nm) is also incorrect.
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