Question 1826Navigation General

70% to pass

You take a bearing of 043° and 169° of two objects. What bearing of a third object will give the best fix?

A 073°
B 192°
C 309°
D 356°
AI Explanation

The correct answer is C) 309°. To obtain the best fix, the third bearing should be perpendicular to the first two bearings. The bearing of 043° and 169° creates an angle of 126°. The third bearing should be at an angle of 90° to this, which is 309°. The other options are incorrect because they do not provide a bearing that is perpendicular to the first two. A) 073° and D) 356° are not perpendicular, while B) 192° is 180° off from the optimal solution.

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Official Resources
USCG Navigation Rules (COLREGS) 33 CFR Navigation Rules USCG National Maritime Center
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