Question 655 Rules of the Road

The correct answer is B) a rigid replica of the International Code flag "A". This is because the International Regulations for Preventing Collisions at Sea (COLREGS) Rule 27(d) states that when it is impracticable for a small vessel engaged in diving operations to display the shapes required by Rule 27(a), they may display a rigid replica of the International Code flag "A" (which indicates a diver-down flag). The other options are incorrect because they do not match the COLREGS regulations for a small vessel engaged in diving operations. Option A (three black balls) is the shape for a vessel restricted in its ability to maneuver, Option C (two red balls) is for a vessel not under command, and Option D (a black cylinder) is for a vessel engaged in dredging or underwater operations.