NAUI Nitrox Diver Final Exam With
Solutions 100% Correct
What is the absolute pressure at 34 msw (111 fsw)? 4.4 ata
What is the nitrogen partial pressure (PN2) in EAN35 at a depth of 26 msw (85 fsw)? 2.3
ata
What is the oxygen partial pressure (PO2) of EAN38 at 27 msw (87 fsw)? 1.4 ata
At what depth in the ocean is the absolute pressure 6.4 ata? 54 msw (178 fsw)
If the PO2 at 30 msw (98 fsw) is 1.4 atmospheres, what is the oxygen fraction of the breathing
mixture? 0.35
What is the partial pressure of nitrogen in air at 40 msw (130 fsw)? 3.9 ata
True or False. Narcosis is reduced significantly when diving with enriched air nitrox.
False
, NAUI Nitrox Diver Final Exam With
Solutions 100% Correct
The mechanisms of nitrogen narcosis are thought to be similar to: Anesthesia
Oxygen is used by the body in: Metabolism
The term used for low oxygen in the body is: Hypoxia
Breathing high partial pressures of oxygen can cause: Convulsions
The accepted oxygen partial pressure exposure limit for recreational nitrox diving is: 1.4
ata
At the first signs or symptoms of oxygen toxicity, a diver should: Terminate the dive.
Historically, what are the two standard nitrox mixes? 32% oxygen and 36% oxygen
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)? EAN38
Solutions 100% Correct
What is the absolute pressure at 34 msw (111 fsw)? 4.4 ata
What is the nitrogen partial pressure (PN2) in EAN35 at a depth of 26 msw (85 fsw)? 2.3
ata
What is the oxygen partial pressure (PO2) of EAN38 at 27 msw (87 fsw)? 1.4 ata
At what depth in the ocean is the absolute pressure 6.4 ata? 54 msw (178 fsw)
If the PO2 at 30 msw (98 fsw) is 1.4 atmospheres, what is the oxygen fraction of the breathing
mixture? 0.35
What is the partial pressure of nitrogen in air at 40 msw (130 fsw)? 3.9 ata
True or False. Narcosis is reduced significantly when diving with enriched air nitrox.
False
, NAUI Nitrox Diver Final Exam With
Solutions 100% Correct
The mechanisms of nitrogen narcosis are thought to be similar to: Anesthesia
Oxygen is used by the body in: Metabolism
The term used for low oxygen in the body is: Hypoxia
Breathing high partial pressures of oxygen can cause: Convulsions
The accepted oxygen partial pressure exposure limit for recreational nitrox diving is: 1.4
ata
At the first signs or symptoms of oxygen toxicity, a diver should: Terminate the dive.
Historically, what are the two standard nitrox mixes? 32% oxygen and 36% oxygen
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)? EAN38
