At 0000 you fix your position and change course to 270°T. At 0030 you again fix your position, and it is 0.5 mile east of your DR. Which statement is TRUE?

Correct Answer: Option D — The set is 090°, drift 1.0 knot.

After steaming on a 270 degree course for 30 minutes, a fix 0.5 miles east of the DR shows the vessel was set 0.5 miles east over that duration. Set is directed toward 090 degrees. With 0.5 miles of drift in 0.5 hours, the drift speed is 1.0 knot.