The maximum dive time for a dive to 60 ft is ____ minutes.

The maximum dive time for a dive to 60 ft is ____ minutes.

• A. 60
• B. 30
• C. 40
• D. 50

Answer: (D)

No-decompression limits determine how long you can stay at a given depth without needing decompression stops on ascent. As depth increases, these limits get shorter because more dissolved nitrogen accumulates in the body. For a dive to 60 ft (about 18 m), the standard no-decompression limit is roughly 50 minutes. That means you can remain at that depth up to about fifty minutes and still ascend without stopping for decompression. If you exceed that time, decompression stops would be required to safely off-gas nitrogen. The other time options are longer or shorter than this depth’s published limit, so fifty minutes is the best match.

No-decompression limits determine how long you can stay at a given depth without needing decompression stops on ascent. As depth increases, these limits get shorter because more dissolved nitrogen accumulates in the body. For a dive to 60 ft (about 18 m), the standard no-decompression limit is roughly 50 minutes. That means you can remain at that depth up to about fifty minutes and still ascend without stopping for decompression. If you exceed that time, decompression stops would be required to safely off-gas nitrogen. The other time options are longer or shorter than this depth’s published limit, so fifty minutes is the best match.