SDI COMPUTER NITROX EXAM SCRIPT 2026
FULL QUESTIONS AND CORRECT ANSWERS
GRADED A+
◉ What is the recommended first aid for decompression sickness?
Answer: Controlling their temperature and administering pure oxygen,
then immediately getting them airlifted to a hospital for the
decompression chamber
◉ What is the minimum concentration of oxygen required to maintain
consciousness at sea level? Answer: 16%
◉ What is the maximum percentage of oxygen that sport divers use in a
Nitrox mixture? Answer: 40%
◉ What is the maximum recommended depth for using 100 percent
oxygen? Answer: 20 feet
◉ What FO2 does EAN 32 contain? Answer: 68 percent nitrogen and 32
percent oxygen
◉ What are two reasons why EAN32 is a good choice for Nitrox diving?
Answer: Will provide you with a good combination of extended bottom
time and unrestricted depth within the sport diving range, &. using
, EAN32 poses less risk in terms of exposure to oxygen than other richer
mixtures.
◉ What is the maximum partial pressure of oxygen (PO2) we use in
Nitrox diving? Answer: 1.6
◉ What does the term oxygen toxicity mean? Answer: condition that
occurs when the diver breathes a mixture of gas that allows the PO2 to
exceed 1.6 by going too deep or exceeding the time limit at a lower PO2
◉ What is the primary risk associated with Nitrox diving? Answer:
Oxygen poisoning
◉ What are the words represented by the acronym CONVENTID?
Answer: Con - convulsions, V - visual disturbances,E - ringing/auditory
hallucinations, N - nausea, T - twitching, I - irritability/apprehension, D -
dizziness
◉ What does a Nitrox tank wrap used to identify Nitrox cylinders look
like? Answer: adhesive decal, generally 10-13 cm/4-5 in in width, that is
designed to completely encircle the diameter of the tank. The tape is
usually printed in yellow with bold green letters with the words Enriched
Air and/or Nitrox printed continuously on it. This tape makes it quick
and easy to spot a Nitrox bottle in a group of tanks.
FULL QUESTIONS AND CORRECT ANSWERS
GRADED A+
◉ What is the recommended first aid for decompression sickness?
Answer: Controlling their temperature and administering pure oxygen,
then immediately getting them airlifted to a hospital for the
decompression chamber
◉ What is the minimum concentration of oxygen required to maintain
consciousness at sea level? Answer: 16%
◉ What is the maximum percentage of oxygen that sport divers use in a
Nitrox mixture? Answer: 40%
◉ What is the maximum recommended depth for using 100 percent
oxygen? Answer: 20 feet
◉ What FO2 does EAN 32 contain? Answer: 68 percent nitrogen and 32
percent oxygen
◉ What are two reasons why EAN32 is a good choice for Nitrox diving?
Answer: Will provide you with a good combination of extended bottom
time and unrestricted depth within the sport diving range, &. using
, EAN32 poses less risk in terms of exposure to oxygen than other richer
mixtures.
◉ What is the maximum partial pressure of oxygen (PO2) we use in
Nitrox diving? Answer: 1.6
◉ What does the term oxygen toxicity mean? Answer: condition that
occurs when the diver breathes a mixture of gas that allows the PO2 to
exceed 1.6 by going too deep or exceeding the time limit at a lower PO2
◉ What is the primary risk associated with Nitrox diving? Answer:
Oxygen poisoning
◉ What are the words represented by the acronym CONVENTID?
Answer: Con - convulsions, V - visual disturbances,E - ringing/auditory
hallucinations, N - nausea, T - twitching, I - irritability/apprehension, D -
dizziness
◉ What does a Nitrox tank wrap used to identify Nitrox cylinders look
like? Answer: adhesive decal, generally 10-13 cm/4-5 in in width, that is
designed to completely encircle the diameter of the tank. The tape is
usually printed in yellow with bold green letters with the words Enriched
Air and/or Nitrox printed continuously on it. This tape makes it quick
and easy to spot a Nitrox bottle in a group of tanks.
