Question 5 ONC05 - Master or Mate of LT 200 GRT

The Correct Answer is C **Explanation for Option C (the nature of her work):** Option C, "the nature of her work," is the correct answer because it directly reflects the definition and status assigned to a vessel "restricted in her ability to maneuver" (RAM) under the International Regulations for Preventing Collisions at Sea (COLREGs), specifically Rule 3(g) and Rule 18. A vessel becomes RAM when it is engaged in an operation (such as dredging, surveying, submarine cable laying, replenishment at sea, etc.) that makes it impossible for her to deviate from her course and keep out of the way of another vessel. This restriction is due entirely to the functional requirements and demands of the work she is performing. **Explanation for Incorrect Options:** * **A) her draft:** A vessel restricted by her draft (a "constrained by draft" vessel, CBD) is a separate category under COLREGs (Rule 3(h) and Rule 18(d)) and is defined by the relationship between her draft and the available water depth and width, not by the nature of her work. While a CBD vessel is also severely restricted, the question specifically asks about a vessel "restricted in her ability to maneuver," whose definition hinges on the *work* being performed. * **B) some exceptional circumstances:** While exceptional circumstances could lead to a vessel being temporarily unable to maneuver (perhaps due to severe damage or steering failure), this situation is generally covered by Rule 2 (Responsibility) and the concept of "not under command" (NUC). A vessel "restricted in her ability to maneuver" is a formally defined operational status, not a general emergency state arising from exceptional circumstances. * **D) a danger of navigation:** This term is too broad. While dangers of navigation (like shoals or wrecks) might force a vessel to alter course, they do not intrinsically define the status of a RAM vessel. A RAM vessel's restriction is caused by the activity she is intentionally engaged in, not necessarily an external environmental danger.