Which of the following is a recommended practice when venting the BCD and dry suit?

Venting both the buoyancy control device (BCD) and the dry suit together is a recommended practice because it helps to maintain optimal buoyancy control, especially during ascent. By venting the BCD, a diver can reduce their overall buoyancy, while venting the dry suit allows for proper air pressure adjustment in the suit, ensuring that the diver does not experience uncomfortable squeezing or pneumatic pressure changes as they ascend.

This combined venting technique enables better overall management of buoyancy throughout the dive, enhancing safety and comfort. By managing air in both the BCD and the dry suit simultaneously, divers can achieve a more controlled and gradual ascent, reducing the risks associated with rapid ascents or uncontrolled buoyancy changes. This approach is particularly important in varying water conditions and environments, ensuring proper buoyancy is maintained throughout the dive.