Nitrox Review: Questions With Complete Solutions
Among the terms divers may use when referring to Nitrox are Correct
Answer - Enriched Air, Oxygen Enriched Air,Enriched Air Nitrox, NOAA
Nitrox I and II.
The air we normally breathe at sea level contains approximately 79 percent
nitrogen and ___ percent oxygen. Correct Answer - 21
Nitrox is generally considered to be anymixture of nitrogen and oxygen in
whichthe percentage of oxygen is __________than that found in air. Correct
Answer - greater
The term _________ refers to an individual who is qualified to create the Nitrox
used to fill scuba cylinders Correct Answer - blender
According to your study materials, among the common Nitrox mixtures sport
divers use are: Correct Answer - EAN 30, EAN 32, EAN 36
The primary benefits of using Nitrox include longer __________ ________ and
shorter __________ _____________ . Correct Answer - bottom times, surface
intervals
During any 24-hour period, you can be exposed to a Nitrox mixture at its
Maximum Operating Depth (MOD) for up to ____minutes. Correct Answer -
150
Dive computers work by calculating the approximate amount of excess
nitrogen present in your body, based on factors such as _______and ________ .
Correct Answer - depth, time
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____________
___________. Correct Answer - decompression sickness
A decompression stop involves pausing at a fixed _________ for a specified
period of_________ to allow excess nitrogen to exit your body more slowly.
Correct Answer - depth, time
, Decompression diving involves more _______than no-decompression diving,
and without the proper precautions can become extremely ______________ .
Correct Answer - risk, hazardous
Decompression sickness usually occurs when you have an excess amount
of___________ in your body and you ___________ too quickly. Correct Answer -
nitrogen, ascend
The most common symptoms of decompression sickness can include, but are
not limited to, pain in the joints, ___________ ,paralysis, loss of ____________,muscle
weakness, and impaired thinking. Correct Answer - numbness, balance
The most important first-aid procedure for a diver suspected of suffering from
decompression sickness is administration of pure___________ Correct Answer
- oxygen
Once a diver suspected of suffering from decompression has been transported
to a medical facility, proper treatment will primarily involve ______________ in a
hyperbaric chamber. Correct Answer - recompression
The minimum concentration of oxygen required to maintain consciousness at
sea level is ___percent. Correct Answer - 16
The maximum percentage of oxygen that sport divers are likely to use in a
Nitrox mixture is ___ percent Correct Answer - 40
The maximum recommended depth for using oxygen is_________. Correct
Answer - 6m/20ft
The term EAN32 refers to a Nitrox mixture in which the Fraction of___________
is 32 percent. Correct Answer - oxygen
The MOD for EAN32 is ____________ . Correct Answer - 40m/ 132ft
The term MOD stands for __________________ Depth. Correct Answer -
Maximum Operating
Among the terms divers may use when referring to Nitrox are Correct
Answer - Enriched Air, Oxygen Enriched Air,Enriched Air Nitrox, NOAA
Nitrox I and II.
The air we normally breathe at sea level contains approximately 79 percent
nitrogen and ___ percent oxygen. Correct Answer - 21
Nitrox is generally considered to be anymixture of nitrogen and oxygen in
whichthe percentage of oxygen is __________than that found in air. Correct
Answer - greater
The term _________ refers to an individual who is qualified to create the Nitrox
used to fill scuba cylinders Correct Answer - blender
According to your study materials, among the common Nitrox mixtures sport
divers use are: Correct Answer - EAN 30, EAN 32, EAN 36
The primary benefits of using Nitrox include longer __________ ________ and
shorter __________ _____________ . Correct Answer - bottom times, surface
intervals
During any 24-hour period, you can be exposed to a Nitrox mixture at its
Maximum Operating Depth (MOD) for up to ____minutes. Correct Answer -
150
Dive computers work by calculating the approximate amount of excess
nitrogen present in your body, based on factors such as _______and ________ .
Correct Answer - depth, time
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____________
___________. Correct Answer - decompression sickness
A decompression stop involves pausing at a fixed _________ for a specified
period of_________ to allow excess nitrogen to exit your body more slowly.
Correct Answer - depth, time
, Decompression diving involves more _______than no-decompression diving,
and without the proper precautions can become extremely ______________ .
Correct Answer - risk, hazardous
Decompression sickness usually occurs when you have an excess amount
of___________ in your body and you ___________ too quickly. Correct Answer -
nitrogen, ascend
The most common symptoms of decompression sickness can include, but are
not limited to, pain in the joints, ___________ ,paralysis, loss of ____________,muscle
weakness, and impaired thinking. Correct Answer - numbness, balance
The most important first-aid procedure for a diver suspected of suffering from
decompression sickness is administration of pure___________ Correct Answer
- oxygen
Once a diver suspected of suffering from decompression has been transported
to a medical facility, proper treatment will primarily involve ______________ in a
hyperbaric chamber. Correct Answer - recompression
The minimum concentration of oxygen required to maintain consciousness at
sea level is ___percent. Correct Answer - 16
The maximum percentage of oxygen that sport divers are likely to use in a
Nitrox mixture is ___ percent Correct Answer - 40
The maximum recommended depth for using oxygen is_________. Correct
Answer - 6m/20ft
The term EAN32 refers to a Nitrox mixture in which the Fraction of___________
is 32 percent. Correct Answer - oxygen
The MOD for EAN32 is ____________ . Correct Answer - 40m/ 132ft
The term MOD stands for __________________ Depth. Correct Answer -
Maximum Operating
