Question 742 Rules of the Road

The correct answer is A) a vessel engaged in diving operations. According to the International Regulations for Preventing Collisions at Sea (COLREGS) and the Inland Navigation Rules, a vessel engaged in diving operations is required to exhibit an all-round flashing yellow light. This light signals to other vessels in the area that the diving vessel is restricted in its ability to maneuver and that extra caution should be taken when approaching or passing the vessel. The other options are incorrect because they do not require an all-round flashing yellow light. B) an air-cushion vessel in the non-displacement mode, C) a vessel towing a submerged object, and D) a vessel not under command have different light requirements specified in the COLREGS and Inland Navigation Rules.