and CORRECT Answers
, NAUI Nitrox Diver Final Exam Exam Coverage
Exam coverage for the NAUI Nitrox Diver Final Exam includes the comprehensive
knowledge and practical application of safe diving practices using enriched air
nitrox (EANx), focusing on gas laws, partial pressures, and the physiological
effects of increased oxygen exposure such as central nervous system (CNS) and
pulmonary oxygen toxicity. It evaluates understanding of oxygen limits, nitrogen
absorption, and how nitrox impacts no-decompression limits, while emphasizing
dive planning skills such as calculating maximum operating depth (MOD),
equivalent air depth (EAD), and tracking oxygen exposure. The exam also
assesses competence in analyzing gas mixtures, proper cylinder labeling, use of
oxygen analyzers, dive computer settings, equipment considerations, and
adherence to safety protocols, with a strong focus on risk management and
applying safe, responsible diving practices in real-world scenarios.
We say that nitrogen is an inert gas. This means ___. Our bodies do not use the nitrogen we breathe.
The main reason to dive with "nitrox" is to reduce Nitrogen
exposure to some of the problems in diving caused by:
What is the primary safety hazard of breathing nitrogen at Narcosis
depth?
NAUI sanctioned enriched air nitrox training in: 1992
Benefits of nitrox include: Extended bottom time
Increased safety margins
Shorter surface intervals
The greatest advantages for diving using nitrox occur in 15- 33 msw (50-110 fsw)
what depth range?
True or False: A scuba diver breathing nitrox avoids any False
risk of nitrogen narcosis.
If a nitrox mix is 36% oxygen, what is the fraction of 0.36
oxygen in the gas mix?
___ describes the relationship between absolute pressure Boyle's Law
and the volume of a gas.
To find the partial pressure of a gas in a mixture: Multiply the gas fraction by the absolute pressure.
The water pressure plus atmospheric pressure equals: Absolute pressure