Question 41 ONC04 - Mate of LT 500-1600 GRT

The Correct Answer is A **Explanation for A (The vessel's searchlight):** Option A is correct based on Rule 36 of the International Regulations for Preventing Collisions at Sea (COLREGs), which applies to both international and inland waters (where adopted). Rule 36 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 beam specifically to attract attention (without blinding the other vessel) is an authorized, non-distress means of attracting attention. **Explanation for B (A red star shell):** A red star shell is a recognized signal of **distress** under Annex IV of COLREGs. Using a distress signal when not in distress is prohibited and illegal, and it is not intended merely to "attract attention" in a routine manner. **Explanation for C (A burning barrel):** A flame or fire on board, such as a burning barrel, is a signal indicating **distress** (specifically, "a flame on the vessel (as from burning tar or oil, etc.)"). This is not an appropriate signal for attracting attention outside of an emergency. **Explanation for D (An orange smoke signal):** An orange smoke signal is a visual signal recognized under Annex IV of COLREGs as indicating **distress**. It is used exclusively when the vessel is in grave and imminent danger and requires assistance, not for general attention-seeking.