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NAUI Nitrox Diver Final Exam 2026 ACTUAL
COMPLETE REAL EXAM ELABORATIONS
QUESTIONS AND VERIFIED ANSWERS||VERIFIED
EXAM!! (100% CORRECT ANSWERS) ALREADY
GRADED A+|||NEWEST VERSION!!!
The main reason to dive with "nitrox" is to reduce
exposure to some of the problems in diving caused by: -
Answers-Nitrogen
We say that nitrogen is an inert gas. This means_____. -
Answers-Our bodies do not use the nitrogen we breathe.
What is the primary safety hazard of breathing nitrogen at
depth? - Answers-Narcosis
Air is comprised of 21% Oxygen and ___________ %
Nitrogen. - Answers-Air is comprised of approximately
21% Oxygen and 79% Nitrogen
Nitrox has more ____________ than air. - Answers-
oxygen -> nitrox is a special mix that contains more than
21% Oxygen
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True or False
EAN stands for enriched air nitrox - Answers-True
other abreviations are EANx
EAN32 contains 32% of ____________? - Answers-
oxygen
True or false: the TDI Nitrox course includes using nitrox
mixes from EAN22 to EAN40. - Answers-True, this course
only addresses the use of 22-40% Oxygen
True or false: Nitrox offers several advantages, without
any added risk. - Answers-False, nitrox has added risks
with breathing too much Oxygen and getting oxygen
poisoning.
True or false: Pressure is the force, or weight, pressing
upon a diver, an object, or a gas. - Answers-true
_______________ bar/atm is equivalent to one kilogram
per square centimeter/ 14.7 psi per square inch. -
Answers-at the surface, a person experiences the weight
od the Earth's atmosphere pressing downward. in the
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metric system, this weight is defined as one barometric
unit.
Every 10m/33ft in depth exerts _______ bar/atm in
additional pressure. - Answers-1
At 30m/99 ft, the ambient pressure is _________ bar/atm -
Answers-4
Boyle's law has no effect on any gas contained within a
sealed rigid container, such as a: - Answers-scuba
cylinder, and thus the air within the cylinder is not
impacted by the principal of Boyle's law so long as it
remains inside the cylinder.
True or False" The most important issue related to Boyle's
law is that the pressure of the breathing gas, inside a
diver's lungs during a dive, will be 50% less than the
ambient pressure surrounding the diver. - Answers-the
pressure of the breathing gas inside the diver's lungs
during a dive, will be equal to the ambient pressure
surrounding the diver
, 4|Page
True or False: Within a gas mixture, the specific pressure
of an individual gas is referred to as the partial pressure of
the gas. - Answers-true
A gas will always flow from an area of __________ partial
pressure to an area of _________ partial pressure. -
Answers-From Dalton's research, he found that a confined
gas will spread evenly throughout all available
space(moving from an area of high partial pressure to an
area of low partial pressure, to equalize with any area of
lower partial pressure); in the process, it will effectively co-
mingle with all other gases confined within that space,
resulting in a uniform mixture irrespective of any individual
partial pressures.
At 20m/66ft the partial pressure of oxygen, in air, is
______ bar/atm. - Answers-0.63
The diver will be assured that a uniform breathing mix will
be delivered from his cylinder, through his _______,
regardless of the components within the mix. - Answers-
because gases spread evenly and co-mingle within any
given space, the diver will be assured that a uniform
breathing mix will be delivered from his cylinder, through
his regulator, regardless of the components within the mix.
NAUI Nitrox Diver Final Exam 2026 ACTUAL
COMPLETE REAL EXAM ELABORATIONS
QUESTIONS AND VERIFIED ANSWERS||VERIFIED
EXAM!! (100% CORRECT ANSWERS) ALREADY
GRADED A+|||NEWEST VERSION!!!
The main reason to dive with "nitrox" is to reduce
exposure to some of the problems in diving caused by: -
Answers-Nitrogen
We say that nitrogen is an inert gas. This means_____. -
Answers-Our bodies do not use the nitrogen we breathe.
What is the primary safety hazard of breathing nitrogen at
depth? - Answers-Narcosis
Air is comprised of 21% Oxygen and ___________ %
Nitrogen. - Answers-Air is comprised of approximately
21% Oxygen and 79% Nitrogen
Nitrox has more ____________ than air. - Answers-
oxygen -> nitrox is a special mix that contains more than
21% Oxygen
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True or False
EAN stands for enriched air nitrox - Answers-True
other abreviations are EANx
EAN32 contains 32% of ____________? - Answers-
oxygen
True or false: the TDI Nitrox course includes using nitrox
mixes from EAN22 to EAN40. - Answers-True, this course
only addresses the use of 22-40% Oxygen
True or false: Nitrox offers several advantages, without
any added risk. - Answers-False, nitrox has added risks
with breathing too much Oxygen and getting oxygen
poisoning.
True or false: Pressure is the force, or weight, pressing
upon a diver, an object, or a gas. - Answers-true
_______________ bar/atm is equivalent to one kilogram
per square centimeter/ 14.7 psi per square inch. -
Answers-at the surface, a person experiences the weight
od the Earth's atmosphere pressing downward. in the
,3|Page
metric system, this weight is defined as one barometric
unit.
Every 10m/33ft in depth exerts _______ bar/atm in
additional pressure. - Answers-1
At 30m/99 ft, the ambient pressure is _________ bar/atm -
Answers-4
Boyle's law has no effect on any gas contained within a
sealed rigid container, such as a: - Answers-scuba
cylinder, and thus the air within the cylinder is not
impacted by the principal of Boyle's law so long as it
remains inside the cylinder.
True or False" The most important issue related to Boyle's
law is that the pressure of the breathing gas, inside a
diver's lungs during a dive, will be 50% less than the
ambient pressure surrounding the diver. - Answers-the
pressure of the breathing gas inside the diver's lungs
during a dive, will be equal to the ambient pressure
surrounding the diver
, 4|Page
True or False: Within a gas mixture, the specific pressure
of an individual gas is referred to as the partial pressure of
the gas. - Answers-true
A gas will always flow from an area of __________ partial
pressure to an area of _________ partial pressure. -
Answers-From Dalton's research, he found that a confined
gas will spread evenly throughout all available
space(moving from an area of high partial pressure to an
area of low partial pressure, to equalize with any area of
lower partial pressure); in the process, it will effectively co-
mingle with all other gases confined within that space,
resulting in a uniform mixture irrespective of any individual
partial pressures.
At 20m/66ft the partial pressure of oxygen, in air, is
______ bar/atm. - Answers-0.63
The diver will be assured that a uniform breathing mix will
be delivered from his cylinder, through his _______,
regardless of the components within the mix. - Answers-
because gases spread evenly and co-mingle within any
given space, the diver will be assured that a uniform
breathing mix will be delivered from his cylinder, through
his regulator, regardless of the components within the mix.
