NAUI Nitrox Diver Questions with 100%
Correct Answers
the ______ in the air you are breathing limits the time you can stay at depth
nitrogen
in the early twentieth century, a quantitative model for nitrogen loading and dive tables
were developed by
John Scott Haldane
we say that nitrogen is an inert gas. this means
our bodies do not use the nitrogen we breathe
credit for developing and introducing nitrox diving techniques for standard scuba goes
to
Dr. Morgan Wells
NAUI sanctioned enriched air nitrox training in
1992
two benefits of diving with nitrox are
longer dive times and shorter surface intervals
what does the "x" stand for in the term EANx?
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
nitrogen
, nitrox is a _____ breathing gas
mid-range
nitrox provides the greatest advantages for dives in the _____ depth range
15-33 m (50-110 ft)
as a gas is heated in a rigid closed container its pressure will
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?
Henry's Law
atmospheric pressure can be measured in many ways. what is one atmosphere in
millimeters of mercury?
760 mmHg
the ____ of a specific gas in a mix is the portion of the total pressure exerted by that gas
partial pressure
what is the absolute pressure at 17 msw (56 fsw)?
2.7 ata
what is the oxygen partial pressure in EAN35 at a depth of 26 msw (85 fsw)?
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?
Correct Answers
the ______ in the air you are breathing limits the time you can stay at depth
nitrogen
in the early twentieth century, a quantitative model for nitrogen loading and dive tables
were developed by
John Scott Haldane
we say that nitrogen is an inert gas. this means
our bodies do not use the nitrogen we breathe
credit for developing and introducing nitrox diving techniques for standard scuba goes
to
Dr. Morgan Wells
NAUI sanctioned enriched air nitrox training in
1992
two benefits of diving with nitrox are
longer dive times and shorter surface intervals
what does the "x" stand for in the term EANx?
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
nitrogen
, nitrox is a _____ breathing gas
mid-range
nitrox provides the greatest advantages for dives in the _____ depth range
15-33 m (50-110 ft)
as a gas is heated in a rigid closed container its pressure will
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?
Henry's Law
atmospheric pressure can be measured in many ways. what is one atmosphere in
millimeters of mercury?
760 mmHg
the ____ of a specific gas in a mix is the portion of the total pressure exerted by that gas
partial pressure
what is the absolute pressure at 17 msw (56 fsw)?
2.7 ata
what is the oxygen partial pressure in EAN35 at a depth of 26 msw (85 fsw)?
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?
