What does the 3-2 line pull from the diver to the tender indicate?

• A. Less air.
• B. Breathing on the EBS.
• C. Stop and search where you are.
• D. Send me a slate.

Answer: (B)

Line signals are a quick, nonverbal way divers and tenders communicate status underwater. A 3-2 line pull is a predefined signal that the diver is now breathing from the emergency breathing system (EBS) rather than the primary gas supply. This tells the tender that the main regulator/gas isn’t being used at the moment and the diver has switched to bailout gas, so the team should monitor EBS pressure, ensure the bailout gas is delivering properly, and be prepared to support or adjust the dive plan as needed. Other signals described in the options don’t match this pattern or purpose: they wouldn’t indicate a switch to the EBS, which is why the correct interpretation is breathing on the EBS.