NAUI DIVE TABLES WORKSHEET
Version B
Name: _________________________________________________________________
1. What three questions should you ask yourself and answer before every dive?
2. What 4 questions should you ask yourself and answer after every dive?
3.
4.
5.
6.
What is the MDT at: 50’ _____ 70’_____ 90’ _____ 110’ _____
The end of dive letter group is determined by _______ and __________.
Total Nitrogen Time is the sum of _______ and _________.
A buddy team of new divers makes a dive to 80 feet for 30 minutes, what is their
end of dive letter group? ________
7. A buddy team of new divers makes a dive to 67 feet for 37 minutes, what is their
end of dive letter group? _________
8. A team of new divers makes a first dive to a depth or 110 feet in the ocean for an
ADT of 13 minutes. Following a surface interval of 1hour and 45 minutes they
plan another dive to 80 feet. For the second dive, their AMDT is ________
minutes, and their RNT is ________ minutes.
9. The dive team in question number 8 above makes the second dive to 80 feet for a
total of 12 minutes. At the end of the second dive, their letter group is ________.
10. A team of new divers makes a 37-minute dive to 70 feet in the ocean. Following a
surface interval of 5 hours, they then plan a dive to 60 feet. For the second dive
their RNT is ________ minutes and their AMDT is ________.
11. The dive team in number 10 above makes the second dive to 60 feet for 34
minutes. At the end of the second dive their letter group is ________.
12. A team of new divers makes a dive to 100 feet in the ocean for an ADT of 17
minutes. Following a surface interval of 3 hours they make a second dive to 80
feet for an ADT of 19 minutes. After a surface interval of 4 hours they plan a third
dive to 50 feet. For the third dive their RNT is ______ minutes and their AMDT
is ______ minutes.
13. The dive team in number 12 above makes the third dive to 50 feet for 50 minutes.
At the end of the third dive their letter group is ________.
14. A team of new divers makes a dive to 75 feet in the ocean for an ADT of 23
minutes. Following a surface interval of 2 hours they make a dive to 60 feet for an
ADT of 27 minutes. After sitting out for 1 hour and 15 minutes they plan a dive to
50 feet. For the third dive their RNT is ________ minutes and their AMDT is
________ minutes.
NAUI DIVE TABLES WORKSHEET
Version B
15. The dive team in number 14 above makes the third dive to 50 feet for 20 minutes.
Their end of dive letter group is ________.
16. The dive team in number 14 above actually made the third dive to 40 feet for 40
minutes. What is their end of dive letter group? __________
17. If you want to make a dive to 70 feet with an ADT of 35 minutes, your letter
group must be no greater than _____.
18. A team of new divers makes a dive to 110feet with an ADT of 20 minutes, what
decompression stop is required? Depth _____
Time _____
19. At the end of a series of dives you are a G diver. How long must you wait before
making a dive to 60 feet with an ADT of 35 minutes? __________
20. A team of new divers makes a dive to 85 feet in the ocean for an ADT of 23
minutes. If they wish to avoid stage decompression, how long must they wait
before doing a dive to 60 feet for 30 minutes? __________________
21. How long should you wait before flying after diving? _____
22. Using the NAUI Dive Tables, the maximum recommended ascent rate of ascent is
_____.
23. The maximum recommended depth for sport diving is _____ feet.
24. When determining the end of dive letter group after a long, cold, or strenuous
dive, the diver should _______________________________________________.
25. The NAUI dive tables are valid for dives up to an altitude of _______.
26. If a diver misses a mandatory decompression stop, that diver should
27. What 2 general practices should you employ with regard to the dive tables?
28. Who decides what safety margins you will use with regard to the dive tables?
29. Describe the protocols for safety stops on dives to the following depths:
A dive to 40 feet or shallower
A dive to a depth of 110 feet
30. If you dive within the limits of the dive tables or your computer it is impossible to
get bent.
True
False
31. According to NAUI, the minimum recommended Surface Interval time is ______.
We have reviewed the exam on (date) ___________, and I understand the correct
answers to the questions.
Student Name ____________________________________________________