Question 66 Deck Safety

The correct answer is C) emergency radio transmitters. EPIRB (Emergency Position-Indicating Radio Beacon), ELT (Emergency Locator Transmitter), and PLBS (Personal Locator Beacon) are all types of emergency radio transmitters that are designed to alert search and rescue authorities in the event of a distress situation. These devices transmit a distress signal on internationally recognized frequencies, which can be detected by satellite and ground-based systems, allowing for the rapid dispatch of rescue resources. The other options are incorrect because option A) refers to the receivers of these distress signals, not the transmitters themselves, and option B) is incorrect as these devices have not been replaced by the Global Maritime Distress and Safety System (GMDSS). Option D) describes visual signaling devices, which are different from the radio transmitters described in the question.