SSI Enriched Air Nitrox Exam.
Questions with Correct Verified
Answers. Latest 2026-2027. Graded A
02 - cleaned and 02 - service rated cylinders will maintain their rating if they
are only filled with : - ANSOxygen - compatible gas
A common misconception is , that compared to air , Nitrox enables Divers
to dive : - ANSdeeper
According to the SSI CNS Clock table you have two different CNS Clock
limits . One for a single dive , and one for a 24 hr period . These limits are
for an ppO2 of 1.4 bar : - ANS150 mins single dive / 180 mins 24 hrs
How is the ppO2 of a breathing gas calculated ? - ANSMultiplying ambient
pressure by the fraction of oxygen ( FO2 ) in the breathing gas
If scuba equipment , valves and cylinders are exposed to pure oxygen ,
they have to be - ANS02 clean and O2 service rated
If you experience a computer failure underwater , you should : - ANSDo not
enter the water again for at least 24 hours and watch for signs of
decompression sickness
1
Questions with Correct Verified
Answers. Latest 2026-2027. Graded A
02 - cleaned and 02 - service rated cylinders will maintain their rating if they
are only filled with : - ANSOxygen - compatible gas
A common misconception is , that compared to air , Nitrox enables Divers
to dive : - ANSdeeper
According to the SSI CNS Clock table you have two different CNS Clock
limits . One for a single dive , and one for a 24 hr period . These limits are
for an ppO2 of 1.4 bar : - ANS150 mins single dive / 180 mins 24 hrs
How is the ppO2 of a breathing gas calculated ? - ANSMultiplying ambient
pressure by the fraction of oxygen ( FO2 ) in the breathing gas
If scuba equipment , valves and cylinders are exposed to pure oxygen ,
they have to be - ANS02 clean and O2 service rated
If you experience a computer failure underwater , you should : - ANSDo not
enter the water again for at least 24 hours and watch for signs of
decompression sickness
1
