Question 1004Navigation General

70% to pass

You are enroute to assist vessel A. Vessel A is underway at 5.5 knots on course 033°T, and bears 248°T at 64 miles from you. What is the time to intercept if you make 13 knots?

A 3h 59m
B 4h 36m
C 4h 55m
D 3h 44m
AI Explanation

The correct answer is D) 3h 44m. To determine the time to intercept, we need to calculate the distance to the vessel and the relative speed between the two vessels. Given that vessel A is bearing 248°T at 64 miles, and you are making 13 knots, we can use the formula: Time to intercept = Distance / Relative Speed. The relative speed is the difference between your speed (13 knots) and the speed of vessel A (5.5 knots), which is 7.5 knots. The distance to vessel A is 64 miles. Plugging these values into the formula, we get: Time to intercept = 64 miles / 7.5 knots = 3h 44m. The other options are incorrect because they do not accurately calculate the time to intercept based on the given information.

Related Questions
Q@q.QuestionNumber:The drift and set of tidal, river, and ocean currents refer to the _____________... Q@q.QuestionNumber:Port side daymarks may be _______________. Q@q.QuestionNumber:A plane perpendicular to the polar axis will never form what line on the Earth's... Q@q.QuestionNumber:A great circle crosses the equator at 134°E. It will also cross the equator at w... Q@q.QuestionNumber:By convention, the north seeking ends of a compass' magnets are colored ________...

Ready to test your knowledge?

Take a Navigation General Practice Exam
Official Resources
USCG Navigation Rules (COLREGS) 33 CFR Navigation Rules USCG National Maritime Center
← Previous All Questions Next →

Want to practice with timed exams?

Download Coast Guard Exams for the full exam experience.

Get the App