PADI PADI Dive Planning & Dive Tables 1 — Questions and Answers
Question 1: What does the acronym RDP stand for in PADI dive planning?
- Recreational Dive Planner (Correct answer)
- Regulated Depth Planner
- Rebreather Dive Protocol
- Repetitive Dive Procedure
Correct answer: Recreational Dive Planner
RDP stands for Recreational Dive Planner, the tool PADI uses to plan no-decompression dives.
Question 2: On the PADI RDP table, what does the letter group at the end of a dive represent?
- The diver's residual nitrogen level (Correct answer)
- The diver's maximum depth reached
- The bottom time of the dive
- The surface interval required
Correct answer: The diver's residual nitrogen level
The letter group indicates the diver's residual nitrogen level after a dive, used to plan repetitive dives.
Question 3: What is the minimum surface interval a diver must observe before flying after recreational diving according to PADI guidelines?
- 12 hours (Correct answer)
- 4 hours
- 24 hours
- 6 hours
Correct answer: 12 hours
PADI recommends a minimum surface interval of 12 hours before flying after recreational diving.
Question 4: Which PADI planning tool replaced the traditional paper RDP tables with an electronic format?
- eRDPml (Correct answer)
- PADI Dive App
- DiVeSoft
- DAN Dive Planner
Correct answer: eRDPml
The eRDPml (electronic Recreational Dive Planner with multi-level capability) is the electronic version of the PADI dive planning tables.
Question 5: When planning a repetitive dive using the RDP, what must a diver calculate before determining the new no-decompression limit?
- Residual Nitrogen Time (RNT) (Correct answer)
- Maximum Operating Depth
- Surface Air Consumption rate
- Pressure Group at the start
Correct answer: Residual Nitrogen Time (RNT)
Residual Nitrogen Time (RNT) accounts for leftover nitrogen from the previous dive and must be added to actual bottom time.
Question 6: What is the purpose of the 'safety stop' recommended by PADI during ascent?
- To reduce residual nitrogen and lower DCS risk (Correct answer)
- To equalize pressure in the ears
- To allow the dive computer to reset
- To signal the boat for pickup
Correct answer: To reduce residual nitrogen and lower DCS risk
A safety stop at 15 feet (5 meters) for 3 minutes allows off-gassing of nitrogen, reducing the risk of decompression sickness.
PADI PADI Dive Planning & Dive Tables 1
What does the acronym RDP stand for in PADI dive planning?