NAUI Nitrox Diver MIDTERM Exam 70 REAL EXAM
QUESTIONS WITH 100% RATED CORRECT ANSWERS
(ACCURATELY PASSED) 2025 LATEST UPDATED GET A+
the ______ in the air you are breathing limits the time you can stay at depth -
(ANSWER)nitrogen
in the early twentieth century, a quantitative model for nitrogen loading and dive tables were
developed by - (ANSWER)John Scott Haldane
we say that nitrogen is an inert gas. this means - (ANSWER)our bodies do not use the nitrogen
we breathe
credit for developing and introducing nitrox diving techniques for standard scuba goes to -
(ANSWER)Dr. Morgan Wells
NAUI sanctioned enriched air nitrox training in - (ANSWER)1992
two benefits of diving with nitrox are - (ANSWER)longer dive times and shorter surface
intervals
what does the "x" stand for in the term EANx? - (ANSWER)the percentage of oxygen in the
mix
in 1878, Paul Bert established that_____, liberated as bubbles following sudden decompression
was the cause of decompression sickeness - (ANSWER)nitrogen
nitrox is a _____ breathing gas - (ANSWER)mid-range
, nitrox provides the greatest advantages for dives in the _____ depth range - (ANSWER)15-33
m (50-110 ft)
as a gas is heated in a rigid closed container its pressure will - (ANSWER)increase
"if one quantity of gas will dissolve at one atmosphere of pressure, then three quantities of gas
will dissolve at three atmospheres." this statement refers to which law? - (ANSWER)Henry's
Law
atmospheric pressure can be measured in many ways. what is one atmosphere in millimeters of
mercury? - (ANSWER)760 mmHg
the ____ of a specific gas in a mix is the portion of the total pressure exerted by that gas -
(ANSWER)partial pressure
what is the absolute pressure at 17 msw (56 fsw)? - (ANSWER)2.7 ata
what is the oxygen partial pressure in EAN35 at a depth of 26 msw (85 fsw)? - (ANSWER)1.3
ata
if the oxygen partial pressure in your mix is 1.3 ata at a depth of 37 msw (122 fsw), what is the
fraction of oxygen in the mix? - (ANSWER)0.28
what is the partial pressure of oxygen in air at a depth of 21 msw (69 fsw)? - (ANSWER)0.65
ata
the symptoms of nitrogen narcosis parallel those often seen in - (ANSWER)alcohol intoxication
QUESTIONS WITH 100% RATED CORRECT ANSWERS
(ACCURATELY PASSED) 2025 LATEST UPDATED GET A+
the ______ in the air you are breathing limits the time you can stay at depth -
(ANSWER)nitrogen
in the early twentieth century, a quantitative model for nitrogen loading and dive tables were
developed by - (ANSWER)John Scott Haldane
we say that nitrogen is an inert gas. this means - (ANSWER)our bodies do not use the nitrogen
we breathe
credit for developing and introducing nitrox diving techniques for standard scuba goes to -
(ANSWER)Dr. Morgan Wells
NAUI sanctioned enriched air nitrox training in - (ANSWER)1992
two benefits of diving with nitrox are - (ANSWER)longer dive times and shorter surface
intervals
what does the "x" stand for in the term EANx? - (ANSWER)the percentage of oxygen in the
mix
in 1878, Paul Bert established that_____, liberated as bubbles following sudden decompression
was the cause of decompression sickeness - (ANSWER)nitrogen
nitrox is a _____ breathing gas - (ANSWER)mid-range
, nitrox provides the greatest advantages for dives in the _____ depth range - (ANSWER)15-33
m (50-110 ft)
as a gas is heated in a rigid closed container its pressure will - (ANSWER)increase
"if one quantity of gas will dissolve at one atmosphere of pressure, then three quantities of gas
will dissolve at three atmospheres." this statement refers to which law? - (ANSWER)Henry's
Law
atmospheric pressure can be measured in many ways. what is one atmosphere in millimeters of
mercury? - (ANSWER)760 mmHg
the ____ of a specific gas in a mix is the portion of the total pressure exerted by that gas -
(ANSWER)partial pressure
what is the absolute pressure at 17 msw (56 fsw)? - (ANSWER)2.7 ata
what is the oxygen partial pressure in EAN35 at a depth of 26 msw (85 fsw)? - (ANSWER)1.3
ata
if the oxygen partial pressure in your mix is 1.3 ata at a depth of 37 msw (122 fsw), what is the
fraction of oxygen in the mix? - (ANSWER)0.28
what is the partial pressure of oxygen in air at a depth of 21 msw (69 fsw)? - (ANSWER)0.65
ata
the symptoms of nitrogen narcosis parallel those often seen in - (ANSWER)alcohol intoxication
