Question 693Rules of the Road90% to pass
BOTH INTERNATIONAL & INLAND What shape will a vessel 30 meters in length aground display?
AI Explanation
The correct answer is D) three black balls in a vertical line.
This is the correct answer because according to the International Regulations for Preventing Collisions at Sea (COLREGS), a vessel 30 meters or more in length when aground must display three black balls in a vertical line. This signal indicates that the vessel is aground and unable to maneuver.
The other answer choices are incorrect because a cylinder is the shape for a vessel at anchor, two black balls indicate a vessel restricted in its ability to maneuver, and a single black ball is the shape for a vessel not under command.
Related Questions
#691 BOTH INTERNATIONAL & INLAND Which vessel would exhibit sidelights when underway and not making way?#692 BOTH INTERNATIONAL & INLAND The lights displayed in illustration D044RR below would be shown by a vessel described by which of the following? #694 BOTH INTERNATIONAL & INLAND A white masthead light shows through an arc of how many degrees? #695 BOTH INTERNATIONAL & INLAND Which signal would a vessel aground show during daylight? #696 BOTH INTERNATIONAL & INLAND Which vessel must exhibit three white masthead lights in a vertical line?