NAUI Nitrox Diver Exams Latest 2025 Updates
Questions and Verified Answers
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
Questions and Verified Answers
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
