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SDI Computer Nitrox Questions and Correct Answers the Latest Update and Recommended Version
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Oxygen Enriched Air is a term some divers use to refer to Nitrox. → True The air we normally breathe consists primarily of: → Nitrogen and Oxygen A mixture of nitrogen and oxygen in which the percentage of oxygen is greater than that found in air is generally called: → Enriched Air, En...

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  • October 20, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • sdi computer nitrox questions and correct answers
  • oxygen enriched air is a term some divers use to r

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2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain Excel!


SDI Computer Nitrox Questions and
Correct Answers the Latest Update and
Recommended Version
True or False. Oxygen Enriched Air is a term some divers use to refer to Nitrox.


→ True


The air we normally breathe consists primarily of:

→ Nitrogen and Oxygen


A mixture of nitrogen and oxygen in which the percentage of oxygen is greater than that

found in air is generally called:

→ Enriched Air, Enriched Air Nitrox, Nitrox, Etc.


The person who creates the Nitrox used to fill scuba cylinders is referred to as a:


→ Blender


Which of the following is not a Nitrox mixture? EAN24, EAN21, EAN40

→ EAN21


The primary benefits of using Nitrox include:

→ Longer bottom times and shorter surface intervals


During any 24-hour period, you can be exposed to a Nitrox mixture at its Maximum

Operating Depth (MOD) for up to:




1|Page| GradeA+ | 2 0 0 2 5

, 2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain Excel!

→ 150 Minutes or 2.5 hours


True or False. Dive computers work by monitoring the presences of so-called 'silent bubbles

using ultrasound.

→ False


What may happen if you go too deep or stay too long?

→ You may not be able to make a direct ascent to the surface without substantially
increasing your risk of decompression sickness and your dive computer may require
you to make a series of decompression stops


A decompression stop is:


→ Pausing at a fixed depth for a specified period of time to allow excess nitrogen to
exit you body more slowly


To properly engage in decompression diving requires:

→ Specialized training, Additional equipment, and Topside support


Decompression sickness usually occurs when you have an excess amount of __________ in your

body and you ________ too quickly.


→ Nitrogen, ascend


The most common symptoms of decompression sickness can include, but are not limited to:

→ Pain in the joints, Numbness and paralysis, and Loss of balance


The most important first-aid procedure for a diver suspected of suffering from decompression

sickness is:


1|Page| GradeA+ | 2 0 0 2 5

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