Question 573Rules of the Road90% to pass
BOTH INTERNATIONAL & INLAND When anchoring a 20-meter vessel at night, which light(s) must you show?
AI Explanation
The correct answer is A) one all-round white light.
According to the International Regulations for Preventing Collisions at Sea (COLREGS) and the Inland Navigation Rules, a vessel at anchor must display an all-round white light where it can best be seen. This is the required lighting configuration for a 20-meter vessel at anchor, both in international and inland waters.
The other options are incorrect because: B) displaying a stern light in addition to the all-round white light is not required for a vessel at anchor; C) a flare-up light is not a required light for a vessel at anchor; and D) displaying two all-round white lights is not the correct configuration for a 20-meter vessel at anchor.
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