Question 41 ONC01 - Master/Chief Mate Unlimited Tonnage

The Correct Answer is A **Explanation for A (The vessel's searchlight):** Option A is correct based on Rule 36 (Signals to attract attention) of the International Regulations for Preventing Collisions at Sea (COLREGs). Rule 36 explicitly states: "If necessary to attract the attention of another vessel, any vessel may make light or sound signals that cannot be mistaken for any signal authorized elsewhere in these Rules, or may direct the beam of her searchlight in the direction of the danger, in such a way as not to embarrass any vessel." Directing a searchlight is a standard, authorized method for attracting attention, provided it does not interfere with the navigation of the other vessel. **Explanation of Incorrect Options:** * **B) A red star shell:** Red star shells (or rocket flares) are specifically listed in Annex IV of COLREGs as internationally recognized **distress signals**. Using them outside of a distress situation is prohibited and confusing, as they signify grave and imminent danger. * **C) A burning barrel:** A signal consisting of flames on the vessel (like a burning barrel) is also listed in Annex IV of COLREGs as an internationally recognized **distress signal**. Using it for simple attention-getting is illegal and potentially dangerous. * **D) An orange smoke signal:** Orange smoke signals are another item explicitly listed in Annex IV of COLREGs as internationally recognized **distress signals**. They are reserved for signaling distress and emergency, not routine attention-getting.