Question 525 Rules of the Road

The correct answer is A) Either vessel. In a meeting situation, where two vessels are approaching each other, both the stand-on vessel and the give-way vessel are permitted to sound the danger signal (five or more short, rapid blasts on the whistle) if they perceive a risk of collision. This is outlined in the International Regulations for Preventing Collisions at Sea (COLREGS) and the corresponding Inland Navigation Rules. The other options are incorrect because: B) Neither vessel cannot sound the danger signal if a risk of collision is perceived, C) the stand-on vessel is not the only one allowed to sound the danger signal, and D) the give-way vessel is not the only one allowed to sound the danger signal.