SSI Enriched Air Nitrox Exam Latest Update 2025-2026 Actual Exam Questions with 100% Verified Correct Answers Guaranteed A+ Verified by Professor
02 - cleaned and 02 - service rated cylinders will maintain their rating if they are only filled with : - CORRECT ANSWER: Oxygen - compatible gas
A common misconception is , that compared to air , Nitrox enables Divers to dive : -
CORRECT ANSWER: deeper
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 : -
CORRECT ANSWER: 150 mins single dive / 180 mins 24 hrs
How is the ppO2 of a breathing gas calculated ? - CORRECT ANSWER: Multiplying
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
- CORRECT ANSWER: 02 clean and O2 service rated
If you experience a computer failure underwater , you should : - CORRECT ANSWER: Do not enter the water again for at least 24 hours and watch for signs of decompression sickness Signal your buddy , and ascend with them while they monitor your ascent on their computer As an added precaution , perform a longer than normal safety stop if breathing gas supply permits All answers are correct
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