🔍 Key Concepts

• International lifesaving signals used between ship and survivors • Differences between visual motion signals and pyrotechnic (flare) signals • Which signals normally mean "I see you and will help" versus "I need help"

💭 Think About

• Think about which signal would be easy for an aircraft or ship to make repeatedly toward people in the water or in a liferaft • Ask yourself: which of these signals is most often described in training as the response from the rescuing unit rather than the distress party? • Consider whether a specific color of flare is commonly associated with acknowledging distress, or with something else like location marking or general signaling

✅ Before You Answer

• Verify which option is described in standard lifesaving signal tables as the acknowledgment "You are seen – assistance will be given" • Check whether vertical motion (up-and-down movement) is part of the official description and with what object (flag, light, or flare) • Confirm whether a green star signal is normally classified as a distress/acknowledgment signal or has a different typical meaning under SOLAS/pyrotechnic signaling rules