PADI Divemaster Certification Practice Exam

Which type of signaling device must a divemaster know how to use effectively?

1. Only underwater cameras

2. Flares and throwables

3. Marine radios and signal tubes

4. Whistles, airhorns, and emergency beacons

The correct answer is: Whistles, airhorns, and emergency beacons

The correct answer is focused on the importance of audible and visible signaling devices for diver safety and communication. Whistles, airhorns, and emergency beacons are essential tools that a divemaster must be proficient in using, as they are designed to alert others in case of emergencies or to signal for assistance. Understanding how to effectively use these devices can significantly enhance safety during dive operations. Whistles and airhorns produce loud sounds that can carry over long distances, making them effective for attracting attention even in noisy environments, such as near boats or when there are strong currents. Emergency beacons, on the other hand, provide a visual signal that can be seen from afar, especially in case of situations where divers may be out of sight or in distress. The other choices, while they include signaling devices, do not encompass the comprehensive range of tools that a divemaster needs to manage emergency situations effectively. While underwater cameras and other devices may have their place, they are not critical for the immediate safety and communication required during a dive.