NAUI Nitrox Diver Final Exam EXAM ELABORATIONS
QUESTIONS AND VERIFIED ANSWERS 2025 UPDATE |
100% SOLVED
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 nitrogen partial pressure (PN2) in EAN35 at a depth of 26 msw (85
fsw)? - (ANSWER)2.3 ata
What is the oxygen partial pressure (PO2) of EAN38 at 27 msw (87 fsw)? -
(ANSWER)1.4 ata
At what depth in the ocean is the absolute pressure 6.4 ata? - (ANSWER)54 msw
(178 fsw)
QUESTIONS AND VERIFIED ANSWERS 2025 UPDATE |
100% SOLVED
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 nitrogen partial pressure (PN2) in EAN35 at a depth of 26 msw (85
fsw)? - (ANSWER)2.3 ata
What is the oxygen partial pressure (PO2) of EAN38 at 27 msw (87 fsw)? -
(ANSWER)1.4 ata
At what depth in the ocean is the absolute pressure 6.4 ata? - (ANSWER)54 msw
(178 fsw)
