Your vessel is on a course of 034°T at 17 knots. At 0551 a light bears 056.5°T, and at 0623 the light bears 079°T. At what time and at what distance off will your vessel be when abeam of the light?

Correct Answer: Option D — 0646, 6.4 miles

For a vessel on course 034 degrees at 17 knots with bearings changing symmetrically, the 32-minute run between 0551 and 0623 equals the time to abeam, establishing abeam at 0646 with a distance off of 6.4 miles.