Enriched Air Nitrox (SC-EAN)Correct
Questions & Answers
Remaining within the recommended limiting ppO2 of 1.4 bar helps nitrox divers to avoid:
A) Helium Narcosis
B) Oxygen Toxicity
C) Decompression Illness
D) Nitrogen Narcosis - ANSWER Oxygen Toxicity
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:
A) EAN 21/ EAN79
B) EAN 80/ EAN 20
C) EAN 50/ EAN 60
D) EAN 32/ EAN 36 - ANSWER EAN 32/ EAN 36
Nitrox and the acronym EANx solely refer to mixtures with oxygen concentrations (FO2)
higher than:
A) 36%
B) 21%
C) 32%
D) 40% - ANSWER 21%
The major benefit of diving with nitrox is that it has a lower concentration of the gas
which limits our time at depth. This gas is:
A) Air
B) Nitrox
C) Oxygen
D) Nitrogen - ANSWER Nitrogen
Questions & Answers
Remaining within the recommended limiting ppO2 of 1.4 bar helps nitrox divers to avoid:
A) Helium Narcosis
B) Oxygen Toxicity
C) Decompression Illness
D) Nitrogen Narcosis - ANSWER Oxygen Toxicity
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:
A) EAN 21/ EAN79
B) EAN 80/ EAN 20
C) EAN 50/ EAN 60
D) EAN 32/ EAN 36 - ANSWER EAN 32/ EAN 36
Nitrox and the acronym EANx solely refer to mixtures with oxygen concentrations (FO2)
higher than:
A) 36%
B) 21%
C) 32%
D) 40% - ANSWER 21%
The major benefit of diving with nitrox is that it has a lower concentration of the gas
which limits our time at depth. This gas is:
A) Air
B) Nitrox
C) Oxygen
D) Nitrogen - ANSWER Nitrogen
