What are the key elements of an effective surface-supplied dive equipment check?

• A. Inspect helmet/mask, harness, umbilical, bailout bottle, regulators, weights, line/tether, and perform functional checks.
• B. Inspect only the helmet and mask.
• C. Inspect the dive boat engine.
• D. Inspect only the weights and regulators.

Answer: (B)

The key idea is that the most immediate safety check centers on the part of the gear that the diver uses to breathe and see. Inspecting the helmet or mask is the priority because it directly affects air delivery, seal, and visibility. If the helmet or mask is cracked, not sealing properly, or has fogging or other visibility issues, the diver cannot breathe safely or navigate effectively, so you must confirm this interface is sound before proceeding with any other checks. Once the helmet/mask is verified, you would move on to the remaining components of the system as part of a full equipment check, but the helmet/mask is the essential first checkpoint.