The main reason to dive with "nitrox" is to reduce exposure to some of the problems in diving caused by: - ANSWER Nitrogen
We say that nitrogen is an inert gas. This means_____. - ANSWER Our bodies do not use the nitrogen we breathe.
What is the primary safety hazard of breathing nitrogen at ...
NAUI Nitrox Diver Final Exam
ACCURATE 100%
The main reason to dive with "nitrox" is to reduce exposure to some of the problems in diving caused by:
- ANSWER Nitrogen
We say that nitrogen is an inert gas. This means_____. - ANSWER Our bodies do not use the nitrogen we
breathe.
What is the primary safety hazard of breathing nitrogen at depth? - ANSWER Narcosis
NAUI sanctioned enriched air nitrox training in: - ANSWER 1992
Benefits of nitrox include: - ANSWER Extended bottom time
Increased safety margins
Shorter surface intervals
The greatest advantages for diving using nitrox occur in what depth range? - ANSWER 15- 33 msw (50-
110 fsw)
True or False: A scuba diver breathing nitrox avoids any risk of nitrogen narcosis. - ANSWER False
If a nitrox mix is 36% oxygen, what is the fraction of oxygen in the gas mix? - ANSWER 0.36
_____ describes the relationship between absolute pressure and the volume of a gas. - ANSWER Boyle's
Law
, To find the partial pressure of a gas in a mixture: - ANSWER Multiply the gas fraction by the absolute
pressure.
The water pressure plus atmospheric pressure equals: - ANSWER Absolute pressure
What is the absolute pressure at 34 msw (111 fsw)? - ANSWER 4.4 ata
What is the "best mix" to use for an oxygen partial pressure limit of 1.4 ata on a dive to 27 msw (90 fsw)?
- ANSWER EAN38
Standard NAUI Dive Tables can be used for altitudes up to about: - ANSWER 300 meters (1000 feet)
NAUI RGBM sea level Dive Tables can be used for altitudes up to: - ANSWER 610 meters (2000 feet)
The NAUI EAN32 and EAN36 Dive Tables have a tolerance of _____ of the tables' value. - ANSWER +/- 1%
Using the NAUI EAN32 Dive Tables, a diver makes a dive to 33 msw (110 fsw) for 20 minutes. After a
surface interval of 2 hours, the diver makes a second dive, also on EAN32 to a depth of 20 msw (65 fsw).
What is the diver's maximum dive time for the second dive? - ANSWER 36 minutes
If the same diver in question 30 were using NAUI RGBM EAN32 Dive Tables, what would be his maximum
dive time for the second dive? - ANSWER 60 minutes
NAUI Nitrox Dive Tables and NAUI RGBM Nitrox Dive Tables are available for: - ANSWER EAN32 and
EAN36
When diving with nitrox, the equivalent air depth (EAD) is: - ANSWER Shallower than actual depth
Calculate the equivalent air depth for a 29 msw (95 fsw) dive using EAN36. - ANSWER 22 msw (71 fsw)
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