Question 752 Rules of the Road
90% to passBOTH INTERNATIONAL & INLAND At night you sight a vessel displaying a single green light. Which vessel have you sighted?
A
a vessel drifting
B
a small motorboat underway
C
a sailing vessel underway
D
a vessel at anchor
AI Explanation
The correct answer is C) a sailing vessel underway. According to the Navigation Rules, both International and Inland, a sailing vessel underway displays a single green light at night. This is to indicate the vessel's port (left) side. The other options are incorrect because: A) A drifting vessel would not display any navigation lights. B) A small motorboat underway would display a combination of red and green sidelights, not just a single green light. D) A vessel at anchor would display an all-round white anchor light, not a single green light.
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