NAUI Nitrox Diver Exam (New 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| A Grade

NAUI Nitrox Diver Exam (New 2024/ 2025
Update) Questions and Verified Answers|
100% Correct| A Grade
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