Question 5 MODU01 - Offshore Installation Manager

The Correct Answer is C **Explanation for Option C (Correct):** The definition of a "vessel restricted in her ability to maneuver" (RAM) is explicitly defined in Rule 3(g) of the International Regulations for Preventing Collisions at Sea (COLREGs). According to this rule, such a vessel is one which, **from the nature of her work**, is restricted in her ability 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, underwater operations, launching/recovering aircraft, or mine clearance operations. The restriction stems directly from the ongoing work activity. **Explanation of Incorrect Options:** * **A) her draft:** A vessel restricted by her draft (a 'deep-draft vessel') is a separate category defined in Rule 3(h) and is subject to specific rules (e.g., Rule 18(d)), but she is **not** a vessel "restricted in her ability to maneuver." Her inability to deviate from her course is due to her deep draft relative to the available depth, not the nature of her work. * **B) some exceptional circumstances:** While a vessel might face exceptional circumstances (like an engine failure or steering gear breakdown), this would render her "not under command" (NUC), defined in Rule 3(f). A NUC vessel, like a RAM vessel, is unable to keep out of the way, but the reason is a casualty or mechanical failure, not the deliberate nature of her work. * **D) a danger of navigation:** This is a broad term that could apply to many situations (e.g., a shoal, a wreck, or adverse weather). While a vessel might alter course to avoid a danger, this is a standard maneuvering requirement (Rule 2) and does not categorize the vessel as "restricted in her ability to maneuver" under COLREGs.