NAUI Nitrox Diver Exams (Latest 2024/ 2025
Updates STUDY BUNDLE PACKAGE) Questions
and Verified Answers| 100% Correct| Grade A
In 1878, Paul Bert established that _____, liberated as bubbles following sudden
decompression was the cause of decompression sickness. - ANSWERNitrogen
Nitrox is a _____ breathing gas. - ANSWERMid-Range
Nitrox provides the greatest advantages for dives in the _____ depth range. -
ANSWER15-33m (50-110ft)
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? - ANSWER760mmHg
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 (PO2) 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? - ANSWER.28
What is the partial pressure of oxygen in air at a depth of 21 msw (69 fsw)? -
ANSWER.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 Law
True or False: A diver suffering from nitrogen narcosis will always be aware that
he/she is impaired. - ANSWERFalse
Updates STUDY BUNDLE PACKAGE) Questions
and Verified Answers| 100% Correct| Grade A
In 1878, Paul Bert established that _____, liberated as bubbles following sudden
decompression was the cause of decompression sickness. - ANSWERNitrogen
Nitrox is a _____ breathing gas. - ANSWERMid-Range
Nitrox provides the greatest advantages for dives in the _____ depth range. -
ANSWER15-33m (50-110ft)
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? - ANSWER760mmHg
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 (PO2) 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? - ANSWER.28
What is the partial pressure of oxygen in air at a depth of 21 msw (69 fsw)? -
ANSWER.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 Law
True or False: A diver suffering from nitrogen narcosis will always be aware that
he/she is impaired. - ANSWERFalse
