Question 5 ONC04 - Mate of LT 500-1600 GRT

The Correct Answer is C **Why option C ("the nature of her work") is correct:** Rule 3(g) of the International Regulations for Preventing Collisions at Sea (COLREGs), which applies to both international and inland waters (where adopted), defines a "vessel restricted in her ability to maneuver" as a vessel which, from the *nature of her work*, is restricted in her ability to maneuver as required by these Rules and is therefore unable to keep out of the way of another vessel. This category includes vessels engaged in activities such as dredging, surveying, submarine cable laying, replenishment, or launching/recovery of aircraft. The inability to maneuver is a direct consequence of the specific operational duties the vessel is performing. **Why the other options are incorrect:** * **A) her draft:** This definition describes a "vessel constrained by her draft" (Rule 3(h)), not a "vessel restricted in her ability to maneuver." A vessel constrained by her draft is unable to deviate from her course due to her deep draft relative to the available navigable depth. While both are stand-on vessels in certain situations, they are distinct categories defined by different physical limitations or operational requirements. * **B) some exceptional circumstances:** While exceptional circumstances can lead to a vessel being unable to maneuver (e.g., machinery breakdown, rendering it "not under command" under Rule 3(f)), this is not the *definition* of a vessel "restricted in her ability to maneuver." The latter is a defined operational status based on the *nature of her work*, not an emergency status. * **D) a danger of navigation:** This phrase is too general. While dangers of navigation might necessitate course changes or reduced speed, they do not intrinsically define the operational status of a vessel "restricted in her ability to maneuver." That status is based on the specific work being undertaken.