SDI Computer Nitrox NEWEST ACTUAL EXAM
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+ (2025)
True - CORRECT ANSWER True or False. Oxygen
Enriched Air is a term some divers use to refer to Nitrox.
Nitrogen and Oxygen - CORRECT ANSWER The air we
normally breathe consists primarily of:
Enriched Air, Enriched Air Nitrox, Nitrox, Etc. - CORRECT
ANSWER A mixture of nitrogen and oxygen in which the
percentage of oxygen is greater than that found in air is
generally called:
Blender - CORRECT ANSWER The person who creates
the Nitrox used to fill scuba cylinders is referred to as a:
EAN21 - CORRECT ANSWER Which of the following is
not a Nitrox mixture? EAN24, EAN21, EAN40
Longer bottom times and shorter surface intervals -
CORRECT ANSWER The primary benefits of using Nitrox
include:
,150 Minutes or 2.5 hours - CORRECT ANSWER During
any 24-hour period, you can be exposed to a Nitrox mixture
at its Maximum Operating Depth (MOD) for up to:
False - CORRECT ANSWER 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 - CORRECT ANSWER
What may happen if you go too deep or stay too long?
Pausing at a fixed depth for a specified period of time to
allow excess nitrogen to exit you body more slowly -
CORRECT ANSWER A decompression stop is:
Specialized training, Additional equipment, and Topside
support - CORRECT ANSWER To properly engage in
decompression diving requires:
Nitrogen, ascend - CORRECT ANSWER Decompression
sickness usually occurs when you have an excess amount of
__________ in your body and you ________ too quickly.
Pain in the joints, Numbness and paralysis, and Loss of
balance - CORRECT ANSWER The most common
symptoms of decompression sickness can include, but are
not limited to:
, Administration of pure oxygen - CORRECT ANSWER The
most important first-aid procedure for a diver suspected of
suffering from decompression sickness is:
Recompression in a hyperbaric chamber - CORRECT
ANSWER Once a diver suspected of suffering from
decompression sickness has been transported to a medical
facility, proper treatment will primarily involve:
16 percent - CORRECT ANSWER What is the minimum
concentration of oxygen required to maintain consciousness
at sea level?
40 percent - CORRECT ANSWER The maximum
percentage of oxygen that sport divers use in a Nitrox
mixture is:
6 m/20 ft - CORRECT ANSWER What is the maximum
recommended depth for using 100 percent oxygen?
In which the Fraction of Oxygen (FO2) is 32 percent -
CORRECT ANSWER The term EAN32 refers to a Nitrox
mixture:
40 m/132 ft - CORRECT ANSWER The MOD for EAN32 is:
True - CORRECT ANSWER True or False. The term MOD
stands for Maximum Operating Depth.
It is safe to use down to the maximum recommended sport
diving depth limit of 40m/132 ft and it provides a good
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+ (2025)
True - CORRECT ANSWER True or False. Oxygen
Enriched Air is a term some divers use to refer to Nitrox.
Nitrogen and Oxygen - CORRECT ANSWER The air we
normally breathe consists primarily of:
Enriched Air, Enriched Air Nitrox, Nitrox, Etc. - CORRECT
ANSWER A mixture of nitrogen and oxygen in which the
percentage of oxygen is greater than that found in air is
generally called:
Blender - CORRECT ANSWER The person who creates
the Nitrox used to fill scuba cylinders is referred to as a:
EAN21 - CORRECT ANSWER Which of the following is
not a Nitrox mixture? EAN24, EAN21, EAN40
Longer bottom times and shorter surface intervals -
CORRECT ANSWER The primary benefits of using Nitrox
include:
,150 Minutes or 2.5 hours - CORRECT ANSWER During
any 24-hour period, you can be exposed to a Nitrox mixture
at its Maximum Operating Depth (MOD) for up to:
False - CORRECT ANSWER 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 - CORRECT ANSWER
What may happen if you go too deep or stay too long?
Pausing at a fixed depth for a specified period of time to
allow excess nitrogen to exit you body more slowly -
CORRECT ANSWER A decompression stop is:
Specialized training, Additional equipment, and Topside
support - CORRECT ANSWER To properly engage in
decompression diving requires:
Nitrogen, ascend - CORRECT ANSWER Decompression
sickness usually occurs when you have an excess amount of
__________ in your body and you ________ too quickly.
Pain in the joints, Numbness and paralysis, and Loss of
balance - CORRECT ANSWER The most common
symptoms of decompression sickness can include, but are
not limited to:
, Administration of pure oxygen - CORRECT ANSWER The
most important first-aid procedure for a diver suspected of
suffering from decompression sickness is:
Recompression in a hyperbaric chamber - CORRECT
ANSWER Once a diver suspected of suffering from
decompression sickness has been transported to a medical
facility, proper treatment will primarily involve:
16 percent - CORRECT ANSWER What is the minimum
concentration of oxygen required to maintain consciousness
at sea level?
40 percent - CORRECT ANSWER The maximum
percentage of oxygen that sport divers use in a Nitrox
mixture is:
6 m/20 ft - CORRECT ANSWER What is the maximum
recommended depth for using 100 percent oxygen?
In which the Fraction of Oxygen (FO2) is 32 percent -
CORRECT ANSWER The term EAN32 refers to a Nitrox
mixture:
40 m/132 ft - CORRECT ANSWER The MOD for EAN32 is:
True - CORRECT ANSWER True or False. The term MOD
stands for Maximum Operating Depth.
It is safe to use down to the maximum recommended sport
diving depth limit of 40m/132 ft and it provides a good
