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PADI Dive Planning & Dive Tables Flashcards

6 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 6 PADI Dive Planning & Dive Tables flashcards as text

  1. What is the primary advantage of using a dive computer over the RDP tables for dive planning?

    Answer: Dive computers calculate multi-level profiles in real time, extending bottom time safely

    Dive computers track actual depth changes continuously and calculate nitrogen loading for multi-level profiles, often allowing more bottom time than the conservative table method.

  2. In PADI's system, what does 'planning the dive and diving the plan' mean?

    Answer: Decide all dive parameters before entering the water and stick to them underwater

    This PADI principle means all decisions about depth, time, and objectives should be made before the dive and followed to ensure safety.

  3. What is the 'rule of thirds' commonly applied to gas planning in recreational diving?

    Answer: Use one-third of air going out, one-third returning, reserve one-third for emergencies

    The rule of thirds is a gas management principle where one-third is used on the outbound leg, one-third for the return, and one-third held as a reserve.

  4. According to PADI guidelines, at what tank pressure should a recreational diver typically signal 'turn the dive'?

    Answer: 1,000 psi (approximately 70 bar)

    Most PADI courses recommend turning the dive at 500 psi (35 bar) as a minimum reserve, though many divers and instructors use 500–700 psi to surface safely.

  5. Why should divers avoid breath-holding during ascent according to PADI training?

    Answer: Expanding air in the lungs can cause lung overexpansion injury (arterial gas embolism)

    As pressure decreases during ascent, air in the lungs expands; holding the breath traps expanding air and can cause a life-threatening lung overexpansion injury.

  6. What is the purpose of the 'S-drill' (Save-a-dive Kit check / pre-dive safety check) taught in PADI courses?

    Answer: To verify all equipment is functioning correctly before entering the water

    The PADI pre-dive safety check (BWRAF — BCD, Weights, Releases, Air, Final OK) ensures all gear is assembled and working before the dive begins.