NAUI Nitrox Diver Exams (Latest 2024/ 2025
Updates STUDY BUNDLE PACKAGE) Questions
and Verified Answers| 100% Correct| Grade A
the ______ in the air you are breathing limits the time you can stay at depth -
ANSWERnitrogen
in the early twentieth century, a quantitative model for nitrogen loading and dive
tables were developed by - ANSWERJohn Scott Haldane
we say that nitrogen is an inert gas. this means - ANSWERour bodies do not use the
nitrogen we breathe
credit for developing and introducing nitrox diving techniques for standard scuba
goes to - ANSWERDr. Morgan Wells
NAUI sanctioned enriched air nitrox training in - ANSWER1992
two benefits of diving with nitrox are - ANSWERlonger dive times and shorter surface
intervals
what does the "x" stand for in the term EANx? - ANSWERthe percentage of oxygen in
the mix
in 1878, Paul Bert established that_____, liberated as bubbles following sudden
decompression was the cause of decompression sickeness - ANSWERnitrogen
nitrox is a _____ breathing gas - ANSWERmid-range
nitrox provides the greatest advantages for dives in the _____ depth range -
ANSWER15-33 m (50-110 ft)
as a gas is heated in a rigid closed container its pressure will - ANSWERincrease
"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? - ANSWERHenry's Law
atmospheric pressure can be measured in many ways. what is one atmosphere in
millimeters of mercury? - ANSWER760 mmHg
the ____ of a specific gas in a mix is the portion of the total pressure exerted by that
gas - ANSWERpartial pressure
what is the absolute pressure at 17 msw (56 fsw)? - ANSWER2.7 ata
, what is the oxygen partial pressure in EAN35 at a depth of 26 msw (85 fsw)? -
ANSWER1.3 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? - ANSWER0.28
what is the partial pressure of oxygen in air at a depth of 21 msw (69 fsw)? -
ANSWER0.65 ata
the symptoms of nitrogen narcosis parallel those often seen in - ANSWERalcohol
intoxication
____ law states: "at a constant temperature, the volume of a gas varies inversely
with absolute pressure, while the density of a gas varies directly with absolute
pressure." - ANSWERBoyle's
each 10 meters (33 feet) that you descend in the ocean adds another atmosphere of
pressure to the one atmosphere of surface pressure - ANSWERtrue
a diver suffering from nitrogen narcosis will always be aware that he is impaired -
ANSWERfalse
the mechanisms of nitrogen narcosis are thought to be similar to -
ANSWERanesthesia
the controlled release of pressure during ascent from a scuba dive is -
ANSWERdecompression
which gas in air is essential to sustain life? - ANSWERoxygen
the primary waste product from the metabolism of oxygen is - ANSWERcarbon
dioxide
for most people, symptoms of hypoxia begin to appear when the PO2 - ANSWERfalls
below about 0.16 ata
pulmonary oxygen toxicity results from - ANSWERprolonged exposure to elevated
oxygen partial pressures
one of the factors that can increase susceptibility to CNS oxygen toxicity is -
ANSWERheavy exercise and carbon dioxide buildup
the acronym used to remember signs and symptoms of oxygen toxicity is -
ANSWERConVENTID
the recommended maximum PO2 for enriched air nitrox diving is - ANSWER1.4 ata
Updates STUDY BUNDLE PACKAGE) Questions
and Verified Answers| 100% Correct| Grade A
the ______ in the air you are breathing limits the time you can stay at depth -
ANSWERnitrogen
in the early twentieth century, a quantitative model for nitrogen loading and dive
tables were developed by - ANSWERJohn Scott Haldane
we say that nitrogen is an inert gas. this means - ANSWERour bodies do not use the
nitrogen we breathe
credit for developing and introducing nitrox diving techniques for standard scuba
goes to - ANSWERDr. Morgan Wells
NAUI sanctioned enriched air nitrox training in - ANSWER1992
two benefits of diving with nitrox are - ANSWERlonger dive times and shorter surface
intervals
what does the "x" stand for in the term EANx? - ANSWERthe percentage of oxygen in
the mix
in 1878, Paul Bert established that_____, liberated as bubbles following sudden
decompression was the cause of decompression sickeness - ANSWERnitrogen
nitrox is a _____ breathing gas - ANSWERmid-range
nitrox provides the greatest advantages for dives in the _____ depth range -
ANSWER15-33 m (50-110 ft)
as a gas is heated in a rigid closed container its pressure will - ANSWERincrease
"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? - ANSWERHenry's Law
atmospheric pressure can be measured in many ways. what is one atmosphere in
millimeters of mercury? - ANSWER760 mmHg
the ____ of a specific gas in a mix is the portion of the total pressure exerted by that
gas - ANSWERpartial pressure
what is the absolute pressure at 17 msw (56 fsw)? - ANSWER2.7 ata
, what is the oxygen partial pressure in EAN35 at a depth of 26 msw (85 fsw)? -
ANSWER1.3 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? - ANSWER0.28
what is the partial pressure of oxygen in air at a depth of 21 msw (69 fsw)? -
ANSWER0.65 ata
the symptoms of nitrogen narcosis parallel those often seen in - ANSWERalcohol
intoxication
____ law states: "at a constant temperature, the volume of a gas varies inversely
with absolute pressure, while the density of a gas varies directly with absolute
pressure." - ANSWERBoyle's
each 10 meters (33 feet) that you descend in the ocean adds another atmosphere of
pressure to the one atmosphere of surface pressure - ANSWERtrue
a diver suffering from nitrogen narcosis will always be aware that he is impaired -
ANSWERfalse
the mechanisms of nitrogen narcosis are thought to be similar to -
ANSWERanesthesia
the controlled release of pressure during ascent from a scuba dive is -
ANSWERdecompression
which gas in air is essential to sustain life? - ANSWERoxygen
the primary waste product from the metabolism of oxygen is - ANSWERcarbon
dioxide
for most people, symptoms of hypoxia begin to appear when the PO2 - ANSWERfalls
below about 0.16 ata
pulmonary oxygen toxicity results from - ANSWERprolonged exposure to elevated
oxygen partial pressures
one of the factors that can increase susceptibility to CNS oxygen toxicity is -
ANSWERheavy exercise and carbon dioxide buildup
the acronym used to remember signs and symptoms of oxygen toxicity is -
ANSWERConVENTID
the recommended maximum PO2 for enriched air nitrox diving is - ANSWER1.4 ata
