Question 445Rules of the Road90% to pass
INTERNATIONAL ONLY Two power-driven vessels are crossing within one half mile of each other as shown in illustration D042RR below. Vessel "A" sounds one short blast of the whistle. What action should vessel "B" take?

AI Explanation
The correct answer is D) Maintain course and speed.
This is the correct answer because according to the International Regulations for Preventing Collisions at Sea (COLREGS), when two power-driven vessels are crossing, the vessel that has the other on its own starboard side (Vessel "B" in this case) is the stand-on vessel and must maintain its course and speed. Vessel "A" is the give-way vessel and must take action to avoid a collision by altering course to starboard.
The other options are incorrect because they would go against the COLREGS rules for a crossing situation. Sounding a signal or altering course or speed is the responsibility of the give-way vessel, not the stand-on vessel.
Related Questions
#443 INTERNATIONAL ONLY A power-driven vessel leaving a quay or wharf must sound what signal? #444 INTERNATIONAL ONLY You are on vessel "A" as shown in illustration D032RR below. Vessel "B" sounds two short blasts. What action should you take? #446 INTERNATIONAL ONLY Which is TRUE when your vessel is moving from a berth alongside a quay (wharf)? #447 INTERNATIONAL ONLY Power-driven vessels "A" and "B" are meeting on a river as shown in illustration D041RR below and will pass 1/4 mile apart. Which action should the vessels take?#448 INTERNATIONAL ONLY Your vessel is backing out of a slip in a harbor and you can see that other vessels are approaching. You should sound which of the following signals?