Question 94 Rules of the Road

The correct answer is B) She must be a power-driven vessel. The term "constrained by her draft" refers to a vessel that is restricted in her ability to maneuver due to her draft, or the depth of the vessel in the water. This designation applies only to power-driven vessels, as they are the ones that can be constrained by their draft when navigating in shallow waters or restricted channels. Other vessel types, such as those being towed (option A) or vessels that are not under command (option C), are not considered "constrained by draft." The other options are incorrect because they do not accurately describe the definition of a vessel "constrained by her draft" under the International Regulations for Preventing Collisions at Sea (COLREGS).