Question 529 Rules of the Road

The correct answer is C) A pushing vessel and a vessel being pushed when connected in a composite unit. This is correct because the COLREGS (International Regulations for Preventing Collisions at Sea) define a "vessel restricted in her ability to maneuver" as a vessel that, from the nature of her work, is restricted in her ability to deviate from her course. A pushing vessel and a vessel being pushed when connected in a composite unit are not considered "restricted in their ability to maneuver" under the COLREGS. The other options are incorrect because a vessel servicing a navigation mark, a vessel transferring provisions while underway, and a vessel launching aircraft would all be considered "restricted in their ability to maneuver" under the COLREGS.