Question 538 Rules of the Road
90% to passBOTH INTERNATIONAL & INLAND Which light(s) must a sailing vessel of over 20 meters in length while underway exhibit?
A
stern light
B
white masthead light
C
red light over a green light at the masthead
D
combined lantern
AI Explanation
The correct answer is A) stern light. According to the International Regulations for Preventing Collisions at Sea (COLREGS), a sailing vessel over 20 meters in length while underway must exhibit a stern light. This is required by Rule 21(c) of the COLREGS, which states that a sailing vessel shall exhibit a stern light. The other options are incorrect as they do not fully meet the COLREGS requirements for a sailing vessel over 20 meters in length. For example, a white masthead light (option B) or a combined lantern (option D) would not be sufficient on its own.
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