True or False. Dive computers work by monitoring the presences of so-called 'silent bubbles using ultrasound.
(Ans- False
What may happen if you go too deep or stay too long?
(Ans- You may not be able to make a direct ascent to the surface without substantially increasing your risk of decomp...
True or False. Oxygen Enriched Air is a term some divers use to refer to
Nitrox.
(Ans- True
The air we normally breathe consists primarily of
(Ans- 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:
(Ans- Enriched Air, Enriched Air Nitrox, Nitrox, Etc.
The person who creates the Nitrox used to fill scuba cylinders is referred to
as a:
(Ans- Blender
Which of the following is not a Nitrox mixture?
EAN24, EAN21, EAN40
(Ans- EAN21
The primary benefits of using Nitrox include:
(Ans- 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:
(Ans-
True or False. Dive computers work by monitoring the presences of so-
called 'silent bubbles using ultrasound.
(Ans- False
What may happen if you go too deep or stay too long?
(Ans- 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:
(Ans- 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:
(Ans- Spedialized training, Additional equipment, and Topside support
Decompression sickness usually occurs when you have an excess amount
of in your body and you too quickly.
(Ans- Nitrogen, ascend
The most common symptoms of decompression sickness can include, but
are not limited to:
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