ENRICHED AIR NITROX UPDATED VERIFIED
QUESTIONS WITH CORRECT ANSWERS (2026)
●● A common misconception is, that compared to air, Nitrox enables
Divers to dive:
A) More shallow
B) Longer
C) Deeper
D) Shorter
Answer: Deeper
●● Diving Nitrox has which potential to provide?
A) longer no-decompression limits, longer repetitive dives
B) shorter decompression limits, shorter repetitive dives
C) longer decompression limits, shorter decompression dives
D) longer no-decompression dives, shorter repetitive dives
Answer: longer no-decompression limits, longer repetitive dives
●● The air that we breathe consist mainly of:
,A) Oxygen 78%/Nitrogen 21%
B) 50% Nitrogen/ 50% Oxygen
C) 100% Oxygen
D) Oxygen 21%/ Nitrogen 78%
Answer: Oxygen 21%/ Nitrogen 78%
●● To make sure the dive equipment you presently own may be suitable
for nitrox, you have to:
A) Check with your SSI Dive Professional if your equipment needs
special preparation/modification
B) do nothing, because if its good for air its good for Nitrox
C) do nothing, because it is high quality anyways
D) replace all seats and O-Rings
Answer: Check with your SSI Dive Professional if your equipment
needs special preparation/modification
●● Is it true, that Nitrox is designed for Ultra Deep diving?
A) No, Nitrox has more restrictive depth limitations than air
B) It doesn't matter if you use Air, Nitrox or any other Gas, both have
the same depth limitations
, C) Yes, with Nitrox you can dive much deeper than with air
D) Yes, but only in warm water
Answer: No, Nitrox has more restrictive depth limitations than air
●● The Nitrox mixture which can be used at any depth within the
recommended recreational depth limit of 30 meters is:
A) EAN 32
B) EAN 36
C) EAN40
D) All answers are correct
Answer: EAN 32
●● While diving Nitrox you can improve your safety by:
A) using helium computers
B) by using the no-deco-limits of an air computer or air tables
C) using Nitrox computers set to Nitrox
D) using Nitrox tables
Answer: by using the no-deco-limits of an air computer or air tables
●● The two most commonly used Nitrox mixtures in recreational diving
are:
QUESTIONS WITH CORRECT ANSWERS (2026)
●● A common misconception is, that compared to air, Nitrox enables
Divers to dive:
A) More shallow
B) Longer
C) Deeper
D) Shorter
Answer: Deeper
●● Diving Nitrox has which potential to provide?
A) longer no-decompression limits, longer repetitive dives
B) shorter decompression limits, shorter repetitive dives
C) longer decompression limits, shorter decompression dives
D) longer no-decompression dives, shorter repetitive dives
Answer: longer no-decompression limits, longer repetitive dives
●● The air that we breathe consist mainly of:
,A) Oxygen 78%/Nitrogen 21%
B) 50% Nitrogen/ 50% Oxygen
C) 100% Oxygen
D) Oxygen 21%/ Nitrogen 78%
Answer: Oxygen 21%/ Nitrogen 78%
●● To make sure the dive equipment you presently own may be suitable
for nitrox, you have to:
A) Check with your SSI Dive Professional if your equipment needs
special preparation/modification
B) do nothing, because if its good for air its good for Nitrox
C) do nothing, because it is high quality anyways
D) replace all seats and O-Rings
Answer: Check with your SSI Dive Professional if your equipment
needs special preparation/modification
●● Is it true, that Nitrox is designed for Ultra Deep diving?
A) No, Nitrox has more restrictive depth limitations than air
B) It doesn't matter if you use Air, Nitrox or any other Gas, both have
the same depth limitations
, C) Yes, with Nitrox you can dive much deeper than with air
D) Yes, but only in warm water
Answer: No, Nitrox has more restrictive depth limitations than air
●● The Nitrox mixture which can be used at any depth within the
recommended recreational depth limit of 30 meters is:
A) EAN 32
B) EAN 36
C) EAN40
D) All answers are correct
Answer: EAN 32
●● While diving Nitrox you can improve your safety by:
A) using helium computers
B) by using the no-deco-limits of an air computer or air tables
C) using Nitrox computers set to Nitrox
D) using Nitrox tables
Answer: by using the no-deco-limits of an air computer or air tables
●● The two most commonly used Nitrox mixtures in recreational diving
are:
