SDI Computer Nitrox Questions and Answers
100% Guarantee Pass
1. True or False. Oxygen Enriched Air is a term some divers use to refer to
Nitrox.
Answer: True
2. The air we normally breathe consists primarily of
Answer: Nitrogen and Oxygen
3. A mixture of nitrogen and oxygen in which the percentage of oxygen is
greater than that found in air is generally called
Answer: Enriched Air, Enriched Air Nitrox, Nitrox, Etc.
4. The person who creates the Nitrox used to fill scuba cylinders is referred to as
a
Answer: Blender
5. Which of the following is not a Nitrox mixture? EAN24, EAN21, EAN40
Answer: EAN21
6. The primary benefits of using Nitrox include
Answer: Longer bottom times and shorter surface intervals
, 7. During any 24-hour period, you can be exposed to a Nitrox mixture at its
Maximum Operating Depth (MOD) for up to
Answer: 150 Minutes or 2.5 hours
8. True or False. Dive computers work by monitoring the presences of so-called
'silent bubbles using ultrasound.
Answer: False
9. What may happen if you go too deep or stay too long?
Answer: 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
10. A decompression stop is
Answer: Pausing at a fixed depth for a specified period of time to allow excess nitrogen to exit you body
more slowly
11. To properly engage in decompression diving requires
Answer: Specialized training, Additional equipment, and Topside support
12. Decompression sickness usually occurs when you have an excess amount of
in your body and you too quickly.
Answer: Nitrogen, ascend
13. The most common symptoms of decompression sickness can include, but are
100% Guarantee Pass
1. True or False. Oxygen Enriched Air is a term some divers use to refer to
Nitrox.
Answer: True
2. The air we normally breathe consists primarily of
Answer: Nitrogen and Oxygen
3. A mixture of nitrogen and oxygen in which the percentage of oxygen is
greater than that found in air is generally called
Answer: Enriched Air, Enriched Air Nitrox, Nitrox, Etc.
4. The person who creates the Nitrox used to fill scuba cylinders is referred to as
a
Answer: Blender
5. Which of the following is not a Nitrox mixture? EAN24, EAN21, EAN40
Answer: EAN21
6. The primary benefits of using Nitrox include
Answer: Longer bottom times and shorter surface intervals
, 7. During any 24-hour period, you can be exposed to a Nitrox mixture at its
Maximum Operating Depth (MOD) for up to
Answer: 150 Minutes or 2.5 hours
8. True or False. Dive computers work by monitoring the presences of so-called
'silent bubbles using ultrasound.
Answer: False
9. What may happen if you go too deep or stay too long?
Answer: 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
10. A decompression stop is
Answer: Pausing at a fixed depth for a specified period of time to allow excess nitrogen to exit you body
more slowly
11. To properly engage in decompression diving requires
Answer: Specialized training, Additional equipment, and Topside support
12. Decompression sickness usually occurs when you have an excess amount of
in your body and you too quickly.
Answer: Nitrogen, ascend
13. The most common symptoms of decompression sickness can include, but are
