A diver with a letter group of "F" making a dive to 60 ft has a residual nitrogen time of how many minutes?

To determine the residual nitrogen time for a diver with a letter group of "F" at 60 feet, it's essential to refer to the appropriate dive tables or computer algorithms that show how nitrogen is absorbed and released from the body based on various factors, including the depth and the letter group designation.

For a letter group of "F" and a dive to 60 feet, the tables indicate that the diver has a certain amount of residual nitrogen which affects their no-decompression limits for subsequent dives. In this case, the residual nitrogen time is specified as 35 minutes. This means that after the initial dive or exposure to pressure, the diver must wait at least 35 minutes before performing additional dives or ascending to a surface without risking decompression sickness.

Understanding residual nitrogen times is crucial for divers to manage their exposure to pressure and nitrogen in their bodies safely. This information is critical for planning dives and ensuring safety in underwater activities, as exceeding nitrogen limits without proper surface intervals can lead to serious health issues.