Recreational Dive Planner

These practice questions are for SCUBA divers that want to practice using the PADI Recreational Dive Planner imperial tables (RDP). You will need a RDP to complete the problems.

Practice your Recreational Dive Planner skills often. The RDP practice questions are self-scoring and explanations are provided to help you gain a better understanding of how to use it.

Created by: Project Scuba
What is your age?
Under 18 Years Old
18 to 24 Years Old
25 to 30 Years Old
31 to 40 Years Old
41 to 50 Years Old
51 to 60 Years Old
Over 60 Years Old
What is your gender?
Male
Female
1. What is the No Decompression Level (NDL) for a dive to 70 feet?
40 minutes
30 minutes
55 minutes
35 minutes
2. What is the No Decompression Level (NDL) for a dive to 52 feet?
40 minutes
49 minutes
55 minutes
16 minutes
3. Which of these requires a safety stop?
A dive to 40 feet at 74 minutes
A dive to 70 feet at 33 minutes
A dive to 90 feet at 21 minutes
A dive to 60 feet at 52 minutes
4. Which of these requires a safety stop?
A dive to 35 feet at 139 minutes
A dive to 90 feet at 19 minutes
A dive to 100 feet at 3 minutes
A dive to 60 feet at 44 minutes
5. A dive to 60 feet for 37 minutes yields what pressure group?
P
O
N
M
6. A dive to 41 feet for 50 minutes yields what pressure group?
P
R
Q
S
7. A dive to 83 feet for 17 minutes yields what pressure group?
H
K
I
J
8. A dive to 52 feet for 45 minutes yields what pressure group?
S
T
R
U
9. After your first dive, you are in pressure group M. What will your new pressure group be after a 33 minute surface interval?
J
G
F
D
10. After your first dive, you are in pressure group R. What will your new pressure group be after a 1 hour 15 minute surface interval?
B
D
F
E
11. After your first dive, you are in pressure group K. What will your new pressure group be after a 40 minute surface interval?
G
E
D
C
12. After your first dive, you are in pressure group V. What will your new pressure group be after a 2 hour 30 minute surface interval?
M
K
F
B
13. A diver in pressure group S will be in what pressure group after a 52 minute surface interval?
H
L
D
G
14. A diver in pressure group U will be in what new pressure group after a 1 hour 21 minute surface interval?
J
G
A
E
15. Use Table 3. You have completed a dive and had a surface interval. You are now in pressure group G. What is your Residual Nitrogen Time (RNT) if you attempt a 2nd dive to 50 feet?
54 minutes
21 minutes
34 minutes
26 minutes
16. Use Table 3. You have completed a dive and had a surface interval. You are now in pressure group L. What is your Residual Nitrogen Time (RNT) if you attempt a 2nd dive to 70 feet?
14
26
33
22
17. Use Table 3. You have completed a dive and had a surface interval. You are now in pressure group T. What is your Residual Nitrogen Time (RNT) if you attempt a 2nd dive to 42 feet?
91
17
49
63
18. Use Table 3. You are in pressure group H after a surface interval. You are planning a dive to 60 feet. What is your adjusted no stop limit (no decompression limit)?
23
32
25
30
19. Use Table 3. You are in pressure group D after a surface interval. You are planning a dive to 73 feet. What is your adjusted no stop limit (no decompression limit)?
17
13
19
11
20. Use Table 3. After a surface interval you are in pressure group N. You are planning a dive to 88 feet. What is your adjusted no stop limit (no decompression limit)?
22
3
19
5
21. Find the final pressure group. First dive: 40 ft for 60 minutes Surface interval: 1:00 Second dive: 40 feet for 40 minutes
R
Q
P
O
22. Find the final pressure group. First dive: 58 ft for 26 minutes Surface interval: 45 minutes Second dive: 47 feet for 40 minutes
T
Q
R
S
23. Find the final pressure group. First dive: 85 ft for 12 minutes Surface interval: 1:30 Second dive: 65 feet for 20 minutes
N
J
K
P
24. Find the final pressure group. First dive: 52 ft for 35 minutes Surface interval: 50 minutes Second dive: 48 feet for 50 minutes
V
W
U
X
25. Find the final pressure group. First dive: 32 ft for 42 minutes Surface interval: 40 minutes Second dive: 34 feet for 60 minutes
R
Q
P
O
26. Find the final pressure group. After a surface interval, you are in pressure group G. Second dive: 80 feet for 15 minutes
R
U
S
T
27. Find the final pressure group. After a surface interval, you are in pressure group K. Second dive: 100 feet for 5 minutes
O
N
P
Exceeds the NDL - Do not attempt.
28. Find the final pressure group. First dive: 98 ft for 15 min. Surface interval: 1:00 Second dive: 75 feet for 18 min. Surface interval: 1:00 Third dive: 45 feet for 50 min.
V
W
T
U
29. Find the final pressure group. First dive: 67 ft for 26 min. Surface interval: 1:20 Second dive: 65 feet for 25 min. Surface interval: 1:30 Third dive: 37 feet for 59 min.
S
P
R
Q
30. Use the back of the RDP to answer the question. If you exceed your No Decompression Limit (NDL) by 2 minutes, what should you do?
surface immediately
continue diving
do a decompression stop at 30 feet for 15 minutes
do a decompression stop at 15 feet for 8 minutes
31. Use the back of the RDP to answer the question. You have completed a series of 10 dives over 3 days. What is your minimum surface interval before flying home?
12 hours
18 hours
24 hours
6 hours
32. Use the back of the RDP to answer the question. You are planning a dive to 40 feet in cold water. How deep should you calculate your dive?
40 feet
45 feet
50 feet
55 feet
33. Use the back of the RDP to answer the question. What is the maximum ascent rate?
30 feet per minute
40 feet per minute
60 feet per minute
140 feet per minute
34. Use the back of the RDP to answer the question. You have exceeded your No Decompression Limit (NDL) by 7 minutes. What should you do?
call 911 on your underwater phone
breathe 100 percent oxygen
conduct a decompression stop at 15 feet for 15 minutes
surface immediately
35. Use the back of the RDP to answer the question. What altitude requires the use of special procedures?
1000 feet
800 feet
500 feet
200 feet
36. Use the back of the RDP to answer the question. Your ending pressure group after a second dive is a Y. You should wait a minimum of ____ hours between the rest of your dives.
1
2
3
6
37. Find the minimum surface interval. First Dive: 59 feet for 40 min. Second Dive: 40 feet for 50 min.
10 minutes
7 minutes
4 minutes
11 minutes
38. Find the minimum surface interval. First Dive: 75 feet for 21 min. Second Dive: 49 feet for 45 min.
10 minutes
16 minutes
8 minutes
5 minutes
39. Find the minimum surface interval. First Dive: 57 feet for 35 min. Second Dive: 37 feet for 60 min.
6 minutes
12 minutes
No surface interval needed.
3 minutes
40. Find the minimum surface interval. First Dive: 100 feet for 17 min. Second Dive: 60 feet for 30 min.
16 minutes
11 minutes
14 minutes
9 minutes

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