Question 47

The Correct Answer is B **Explanation of Option B (Correct Answer):** Option B, "A green star signal," is the correct answer because a green flare or star signal is generally recognized as a signal indicating **non-distress** or permission/intention (such as used in military or internal convoy communications), not a universal signal of distress under the International Regulations for Preventing Collisions at Sea (COLREGs), often referred to as the Navigation Rules. The recognized pyrotechnic distress signals are typically red (flares or rockets) or orange (smoke). **Explanation of Incorrect Options:** * **A) Red flares:** Red rocket parachute flares or hand-held flares are explicitly listed in Annex IV of COLREGs (Distress Signals) as internationally recognized visual distress signals. * **C) The repeated raising and lowering of outstretched arms:** This is a recognized non-pyrotechnic visual distress signal under Annex IV of COLREGs, intended to be used when other signaling equipment may be unavailable. * **D) Orange-colored smoke:** An orange smoke signal is explicitly listed in Annex IV of COLREGs as an internationally recognized distress signal, particularly useful during daylight hours.