The Light List shows that a navigational light has a nominal range of 15 miles and a height above water of 29 feet (8.8 meters). Your height of eye is 52 feet (15.8 meters) and visibility is 6.0 miles. At which approximate range will you first sight the light?

Correct Answer: Option B — 11.0 miles

The distance of first sighting is the lesser of the geographic range or the luminous range. With a 52-foot height of eye (8.3 nm) and a 29-foot light height (6.2 nm), the geographic range is 14.5 nm. However, visibility limits the range to 6.0 nm, adjusted for the light's nominal range.