Question 5 MODU02 - Barge Supervisor

The Correct Answer is C **Explanation for C (the nature of her work):** The definition of a "vessel restricted in her ability to maneuver" (RAM) is explicitly provided in Rule 3(g) of the International Regulations for Preventing Collisions at Sea (COLREGs) and the Inland Rules. A vessel is classified as RAM when, **from the nature of her work**, she is unable to maneuver as required by the rules and is therefore unable to keep out of the way of another vessel. Examples include vessels engaged in dredging, surveying, submarine cable laying, replenishment, or towing operations that severely restrict their movement. This operational constraint is the defining characteristic of a RAM vessel. **Why the other options are incorrect:** * **A) her draft:** A vessel that is restricted in her ability to maneuver solely due to her draft (a deep-draft vessel) is classified specifically as a "vessel constrained by her draft" (CBD) under Rule 3(h). While both RAM and CBD vessels have special status, they are distinct classifications under the rules. A CBD vessel is unable to deviate from her course only due to the depth and width of the navigable water; she is not a RAM vessel. * **B) some exceptional circumstances:** While exceptional circumstances could lead to a vessel being unable to maneuver (e.g., machinery breakdown), this vessel would typically be classified as a "vessel not under command" (NUC) under Rule 3(f). The inability to maneuver for a RAM vessel is predictable and inherent to the planned operation, not due to an unexpected "exceptional circumstance." * **D) a danger of navigation:** This phrase is too general. While a RAM vessel may encounter dangers, the reason she is unable to keep out of the way is the operational constraint imposed by her work, not merely the existence of a hazard. Furthermore, "danger of navigation" is often used in the context of general prudence or risk assessment, not as the specific defining criterion for a vessel classification under COLREGs.