Boat Crewman Practice Test

In a man overboard situation, you want a ring buoy that a person in the water can quickly grab and hold onto, while also being easy to spot. A 30-inch ring buoy provides enough surface area to support an adult and give a secure grip even if they’re tired or tangled in clothing. It’s large enough to be seen from a distance, aiding rescuers in locating the person. Smaller rings, like 18 inches, are often too small for reliable grasp under stress; 24 inches is common for general use but may not offer the same grip security for MOB; 36 inches is bulky and harder to throw and maneuver. So the 30-inch size is the best balance for man overboard emergencies.