What is the primary purpose of the Global Maritime Distress and Safety System (GMDSS)?

• A. To monitor weather data
• B. To control engine systems
• C. To provide global distress and safety communications
• D. To manage vessel traffic

Answer: (C)

The primary purpose of GMDSS is to provide global distress and safety communications for ships and coast stations. It uses a mix of satellite and terrestrial radio systems to automatically alert rescue authorities, transmit the vessel’s identity and position, and enable two‑way safety or urgent communications. This redundancy and worldwide reach ensure that a ship in distress can quickly summon help and coordinate with shore-based rescue services no matter where it is.

Weather data monitoring and weather warnings can be part of maritime safety information, but that’s not the system’s main function. Engine control is handled by the vessel’s own systems, not GMDSS. Managing vessel traffic is the role of other systems like Vessel Traffic Services, not GMDSS.