What should jumpers do with their nose cannulas prior to exit?

• A. Leave them plugged
• B. Unplug them and secure hoses
• C. Remove them completely
• D. Adjust for altitude

Answer: (B)

Jumpers should unplug their nose cannulas and secure the hoses prior to exit to ensure that they do not obstruct the jump or become a hazard during freefall. Unplugging the cannulas allows jumpers to have a clearer airway and prevents potential complications that could arise from being plugged in during the jump. Securing the hoses is critical, as it prevents them from flapping around during the jump, which might be distracting or lead to entanglement.

Leaving the cannulas plugged or adjusting them for altitude wouldn't be appropriate, as these actions do not prepare the jumper for a safe exit and proper deployment of parachutes. Removing them completely could also be problematic, particularly if jumpers need to use supplemental oxygen at high altitudes. Therefore, the correct procedure focuses on unplugging and securing to ensure maximum safety and functionality during the jump.