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Recreational Dive Planner (RDP) Flashcards

7 cards from real PADI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Recreational Dive Planner (RDP) flashcards as text

  1. What is the maximum depth limit for recreational dives planned using the PADI RDP?

    Answer: 130 feet / 40 meters

    The PADI RDP is designed for recreational dives to a maximum of 130 feet (40 meters).

  2. When planning a dive to 70 feet, which RDP depth column should you use if 70 feet is not listed?

    Answer: The next deeper depth column

    When your planned depth falls between listed depths, always use the next deeper depth column to plan conservatively.

  3. A diver plans a repetitive dive to 50 feet and finds an RNT of 47 minutes with an NDL of 100 minutes. What is the maximum Actual Bottom Time (ABT) for this dive?

    Answer: 53 minutes

    Maximum ABT = NDL minus RNT, so 100 − 47 = 53 minutes.

  4. Which of the following best describes a 'no-decompression limit' (NDL) as shown in Table 1 of the RDP?

    Answer: The maximum time at a given depth before mandatory decompression stops are required

    The NDL is the maximum bottom time at a given depth that keeps a diver within the no-decompression range.

  5. Why does the RDP use the deepest depth reached during a dive for planning purposes, even if most of the dive was shallower?

    Answer: Because nitrogen absorption is greatest at the deepest point, and planning for worst-case protects the diver

    Nitrogen dissolves into tissues faster at greater pressure, so the RDP uses the deepest point as a conservative planning baseline.

  6. How does a safety stop differ from a required decompression stop in recreational diving?

    Answer: A safety stop is a precautionary 3-5 minute pause at 15 feet; a decompression stop is mandatory and required to avoid DCS

    Safety stops are a precautionary best practice at 15 feet for 3–5 minutes, while decompression stops are mandatory and signal the diver exceeded no-decompression limits.

  7. On the RDP, what happens to the no-decompression limit as depth increases?

    Answer: It decreases because nitrogen absorption is faster at greater depths

    Greater depth means higher pressure and faster nitrogen absorption, so the NDL gets shorter at greater depths.