Question 572Rules of the Road90% to pass
BOTH INTERNATIONAL & INLAND The arc of visibility for sidelights is from right ahead to what degree?
AI Explanation
The correct answer is D) 22.5° abaft the beam.
The arc of visibility for sidelights on both international and inland vessels is from right ahead to 22.5° abaft the beam. This is specified in the navigation rules, which require sidelights to be visible from right ahead to 22.5° abaft the beam on the respective side of the vessel. The other options are incorrect because the arc of visibility does not extend to 135° abaft the beam (A), is not exactly abeam (B), and does not extend 22.5° forward of the beam (C).
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