What is the standard meaning of a single line pull by the diver during descent or on the bottom?

• A. I am all right.
• B. Lower
• C. Ventilate
• D. Take up my slack

Answer: (A)

The main idea here is communication through a guideline. When a diver is descending or on the bottom, a quick single pull on the line is the standard way to tell the surface team that everything is okay and you’re not in distress. It’s used because it’s simple, immediate, and easy to recognize even in low visibility or noisy conditions, so the surface crew can proceed with the planned setup or respond to any other signals if needed. Other line signals exist for different messages, but a single pull is the clear, agreed-upon way to say “I’m all right.”