NAUI Nitrox Diver Exam (New 2025- 2026
Update) Questions and Verified Answers
QUESTION
one |of |the |factors |that |can |increase |susceptibility |to |CNS |oxygen |toxicity |is
Answer:
heavy |exercise |and |carbon |dioxide |buildup
QUESTION
the |acronym |used |to |remember |signs |and |symptoms |of |oxygen |toxicity |is
Answer:
ConVENTID
QUESTION
the |recommended |maximum |PO2 |for |enriched |air |nitrox |diving |is
Answer:
1.4 |ata
QUESTION
the |first |precursor |symptom |of |CNS |oxygen |toxicity |is
Answer:
precursor |symptoms |are |highly |variable
QUESTION
, a |stuporous |condition |characterized |by |impaired |mental |and |physical |performance |and |changes |in
|mood |and |behavior |is |known |as
Answer:
nitrogen |narcosis
QUESTION
the |two |most |commonly |used |nitrox |mixtures, |also |known |as |NOAA |Nitrox |I |and |NOAA |Nitrox |II
are
|
Answer:
32% |and |36% |oxygen
QUESTION
the |maximum |operating |depth |(MOD) |of |a |gas |mix |is |determined |by
Answer:
the |maximum |acceptable |partial |pressure |of |oxygen
QUESTION
calculate |the |normal |maximum |operating |depth |for |EAN32 |(PO2 |= |1.4 |ata)
Answer:
34 |msw |(111 |fsw)
QUESTION
what |is |the |"best |mix" |(not |to |exceed |40% |O2) |to |use |for |an |oxygen |partial |pressure |limit |of |1.6 |ata
|on |a |dive |to |27 |msw |(90 |fsw)
Answer:
EAN40
Update) Questions and Verified Answers
QUESTION
one |of |the |factors |that |can |increase |susceptibility |to |CNS |oxygen |toxicity |is
Answer:
heavy |exercise |and |carbon |dioxide |buildup
QUESTION
the |acronym |used |to |remember |signs |and |symptoms |of |oxygen |toxicity |is
Answer:
ConVENTID
QUESTION
the |recommended |maximum |PO2 |for |enriched |air |nitrox |diving |is
Answer:
1.4 |ata
QUESTION
the |first |precursor |symptom |of |CNS |oxygen |toxicity |is
Answer:
precursor |symptoms |are |highly |variable
QUESTION
, a |stuporous |condition |characterized |by |impaired |mental |and |physical |performance |and |changes |in
|mood |and |behavior |is |known |as
Answer:
nitrogen |narcosis
QUESTION
the |two |most |commonly |used |nitrox |mixtures, |also |known |as |NOAA |Nitrox |I |and |NOAA |Nitrox |II
are
|
Answer:
32% |and |36% |oxygen
QUESTION
the |maximum |operating |depth |(MOD) |of |a |gas |mix |is |determined |by
Answer:
the |maximum |acceptable |partial |pressure |of |oxygen
QUESTION
calculate |the |normal |maximum |operating |depth |for |EAN32 |(PO2 |= |1.4 |ata)
Answer:
34 |msw |(111 |fsw)
QUESTION
what |is |the |"best |mix" |(not |to |exceed |40% |O2) |to |use |for |an |oxygen |partial |pressure |limit |of |1.6 |ata
|on |a |dive |to |27 |msw |(90 |fsw)
Answer:
EAN40