Regarding dive planning with RGBM tables, which statement is correct?

Regarding dive planning with RGBM tables, which statement is correct?

• A. True
• B. False
• C. For any given dive you will use only one of the RGBM tables, and you must use the appropriate one
• D. RGBM tables replace the need to plan depth or time

Answer: (C)

In RGBM planning, you choose the specific table that matches the gas you’ll be breathing and the dive profile, and you apply that single table for the dive. That table’s limits and required stops are built for that gas mix and exposure scenario, so using it consistently ensures the decompression assessment reflects the actual breathing gas and conditions. Mixing different RGBM tables or switching between them mid-dive would break the model’s assumptions, leading to unreliable results, which is why you stick to the appropriate one for the dive. Remember, RGBM tables are tools to plan depth and time and mandatory stops, not substitutes for your planning process; you still must use the table to determine when to stop, how deep you go, and how long you stay. The other statements aren’t correct because they imply you might rely on multiple tables or that the tables remove the need to plan depth or time, which isn’t true.

In RGBM planning, you choose the specific table that matches the gas you’ll be breathing and the dive profile, and you apply that single table for the dive. That table’s limits and required stops are built for that gas mix and exposure scenario, so using it consistently ensures the decompression assessment reflects the actual breathing gas and conditions. Mixing different RGBM tables or switching between them mid-dive would break the model’s assumptions, leading to unreliable results, which is why you stick to the appropriate one for the dive. Remember, RGBM tables are tools to plan depth and time and mandatory stops, not substitutes for your planning process; you still must use the table to determine when to stop, how deep you go, and how long you stay. The other statements aren’t correct because they imply you might rely on multiple tables or that the tables remove the need to plan depth or time, which isn’t true.