Administration of pure oxygen - ✔️✔️The most important first-aid procedure for a diver
suspected of suffering from decompression sickness is:
Specialized training, Additional equipment, and Topside support - ✔️✔️To properly
engage in decompression diving requires:
150 Minutes or 2.5 hours - ✔️✔️During any 24-hour period, you can be exposed to a
Nitrox mixture at its Maximum Operating Depth (MOD) for up to:
Nitrogen and Oxygen - ✔️✔️The air we normally breathe consists primarily of:
Enriched Air, Enriched Air Nitrox, Nitrox, Etc. - ✔️✔️A mixture of nitrogen and oxygen
in which the percentage of oxygen is greater than that found in air is generally called:
Blender - ✔️✔️The person who creates the Nitrox used to fill scuba cylinders is
referred to as a:
EAN21 - ✔️✔️Which of the following is not a Nitrox mixture? EAN24, EAN21, EAN40
Longer bottom times and shorter surface intervals - ✔️✔️The primary benefits of using
Nitrox include:
False - ✔️✔️True or False. Dive computers work by monitoring the presences of so-
called 'silent bubbles using ultrasound.
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 - ✔️✔️What may happen if you go too
deep or stay too long?
True - ✔️✔️True or False. Oxygen Enriched Air is a term some divers use to refer to
Nitrox.
Pausing at a fixed depth for a specified period of time to allow excess nitrogen to exit
you body more slowly - ✔️✔️A decompression stop is: