What is the decompression gas volume for Dive Profile A?

The decompression gas volume for Dive Profile A is determined based on several factors, including the depth, time spent at that depth, and the ascent profile of the dive. In this scenario, option C, which states that the decompression gas volume is 15.3 cubic feet, aligns with typical calculations made during decompression diving.

When assessing the required volume of gas for decompression, divers must account for the additional gas needed to manage the rise to the surface at controlled rates to avoid decompression sickness. These calculations often involve predetermined tables or dive computer algorithms that factor in the specific ascent profiles, which generally dictate how much gas is needed at various depths and times.

In this context, 15.3 cubic feet is a reasonable figure that possibly corresponds to the data derived from the dive profile’s specifics. It demonstrates an understanding of how to properly manage gas volumes to ensure a safe ascent, which is a crucial aspect of decompression diving practice. This figure may take into consideration the necessary reserves for any unplanned emergencies, hence providing a buffer to ensure the diver has adequate gas for a safe ascent and any necessary stops.