Question 710Navigation General

70% to pass

You are underway on course 050°T and your maximum speed is 12 knots. The eye of a hurricane bears 120°T, 110 miles from your position. The hurricane is moving towards 285°T at 25 knots. If you maneuver at 12 knots to avoid the hurricane, what could be the maximum CPA?

A 77 miles
B 82 miles
C 87 miles
D 93 miles
AI Explanation

The correct answer is A) 77 miles. To determine the maximum CPA (Closest Point of Approach), we need to consider the relative motion between your vessel and the hurricane. Given the information provided, we can calculate the relative speed and bearing of the hurricane with respect to your vessel. The hurricane is moving at 25 knots towards 285°T, while your vessel is moving at 12 knots towards 050°T. Using the vector calculations, the relative speed and bearing of the hurricane can be determined, which allows us to calculate the maximum CPA of 77 miles. The other options are incorrect because they do not accurately reflect the relative motion and the resulting maximum CPA based on the given information.

Related Questions
Q@q.QuestionNumber:When possible, a DR plot should always be started from where? Q@q.QuestionNumber:The radar control used to reduce sea return at close ranges is the _____________... Q@q.QuestionNumber:In illustration D044NG below, what type of buoy is indicated by the letter A? ... Q@q.QuestionNumber:The equation of time is 8m 00s. The mean Sun is ahead of the apparent Sun. If yo... Q@q.QuestionNumber:The climate of the eastern Gulf coast _______________.

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