Dive Planning and Management Flashcards

Which factor should be evaluated when planning a dive in an area with known boat traffic?

Answer: Entry/exit points away from traffic lanes and use of a dive flag

Planning entry/exit away from boat traffic lanes and displaying a dive flag protects divers from vessel strike while on the surface.

What is the significance of the 'no-decompression limit' (NDL) in dive planning?

Answer: It is the maximum time at a given depth that allows a direct ascent without mandatory decompression stops

The NDL is the maximum bottom time at a specific depth that allows a diver to ascend directly to the surface without mandatory decompression stops.

During dive planning for a boat dive, why is it important to know the anchoring or mooring situation at the site?

Answer: It determines where divers can safely enter and exit and avoids entanglement hazards

Knowing the anchor or mooring setup helps identify safe entry/exit locations, avoid anchor lines as hazards, and plan navigation routes underwater.

A diver is planning to dive at 80 feet (24 meters). Using the RDP, what information does the diver need to determine the adjusted no-decompression limit for a repetitive dive?

Answer: The pressure group letter after the surface interval and the planned depth of the repetitive dive

For a repetitive dive, the diver must find their pressure group after the surface interval, then use that letter and the planned depth to look up the adjusted NDL on the RDP.

Which statement best describes the concept of 'dive leadership' in group dive planning?

Answer: One person takes responsibility for pre-dive planning, briefing, in-water supervision, and emergency coordination

Effective dive leadership means one qualified individual owns the entire process from planning through emergency readiness, ensuring accountability and group safety.

What is the primary reason divers plan a turn-around point based on air supply rather than time?

Answer: Air consumption rates vary by individual, depth, and exertion, making tank pressure a more reliable indicator

Because consumption rates vary widely between divers and conditions, monitoring actual tank pressure provides a direct, accurate measure of remaining breathable air.

When organizing a dive for a mixed-experience group, how should the dive plan accommodate novice divers?

Answer: Plan depth, bottom time, and conditions to the limits of the least experienced diver

The dive plan must be designed around the least experienced diver's skill level, certification limits, and comfort to ensure the safety of the entire group.