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
According to the PADI RDP, what happens if a diver exceeds the no-decompression limit (NDL)?
Answer: The dive becomes a decompression dive requiring a mandatory stop
Exceeding the NDL turns the dive into a decompression dive, requiring a mandatory decompression stop that recreational divers are not trained for.
In PADI multi-level dive planning, why is it important to start at the deepest depth?
Answer: Deeper depths consume the NDL faster, so planning deep-to-shallow is safest
Starting at the deepest point and ascending gradually is the safest profile because it minimizes nitrogen absorption by moving to shallower depths over time.
What does 'actual bottom time' refer to when using the PADI RDP?
Answer: Total elapsed time from descent to beginning the ascent
Actual bottom time is the total time from the start of descent until the diver begins the final ascent.
When using the PADI RDP for a repetitive dive, what is Total Bottom Time (TBT)?
Answer: Residual Nitrogen Time plus Actual Bottom Time
Total Bottom Time equals Residual Nitrogen Time (RNT) added to the Actual Bottom Time (ABT) of the repetitive dive.
Which condition would cause a diver to automatically start at pressure group Z on the RDP?
Answer: No conditions — Z is the maximum limit and requires a long surface interval
Pressure group Z represents the maximum residual nitrogen level; a diver reaching this group must wait until they drop to a lower group before diving again.
According to PADI, what is the recommended maximum ascent rate during a recreational dive?
Answer: 18 meters (60 feet) per minute or slower
PADI recommends ascending no faster than 18 meters (60 feet) per minute to allow safe nitrogen off-gassing and reduce DCS risk.