SDI COMPUTER NITROX ACTUAL EXAM PAPER
2026 QUESTIONS WITH ANSWERS GRADED
A+
◉ Nitrogen and Oxygen. Answer: The air we normally breathe consists
primarily of:
◉ Enriched Air, Enriched Air Nitrox, Nitrox, Etc. Answer: A mixture of
nitrogen and oxygen in which the percentage of oxygen is greater than
that found in air is generally called:
◉ Blender. Answer: The person who creates the Nitrox used to fill scuba
cylinders is referred to as a:
◉ EAN21. Answer: Which of the following is not a Nitrox mixture?
EAN24, EAN21, EAN40
◉ Longer bottom times and shorter surface intervals. Answer: The
primary benefits of using Nitrox include:
◉ 150 Minutes or 2.5 hours. Answer: During any 24-hour period, you
can be exposed to a Nitrox mixture at its Maximum Operating Depth
(MOD) for up to:
, ◉ False. 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.
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. Answer: A decompression stop
is:
◉ Specialized training, Additional equipment, and Topside support.
Answer: To properly engage in decompression diving requires:
◉ Nitrogen, ascend. 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.
Answer: The most common symptoms of decompression sickness can
include, but are not limited to:
2026 QUESTIONS WITH ANSWERS GRADED
A+
◉ Nitrogen and Oxygen. Answer: The air we normally breathe consists
primarily of:
◉ Enriched Air, Enriched Air Nitrox, Nitrox, Etc. Answer: A mixture of
nitrogen and oxygen in which the percentage of oxygen is greater than
that found in air is generally called:
◉ Blender. Answer: The person who creates the Nitrox used to fill scuba
cylinders is referred to as a:
◉ EAN21. Answer: Which of the following is not a Nitrox mixture?
EAN24, EAN21, EAN40
◉ Longer bottom times and shorter surface intervals. Answer: The
primary benefits of using Nitrox include:
◉ 150 Minutes or 2.5 hours. Answer: During any 24-hour period, you
can be exposed to a Nitrox mixture at its Maximum Operating Depth
(MOD) for up to:
, ◉ False. 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.
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. Answer: A decompression stop
is:
◉ Specialized training, Additional equipment, and Topside support.
Answer: To properly engage in decompression diving requires:
◉ Nitrogen, ascend. 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.
Answer: The most common symptoms of decompression sickness can
include, but are not limited to:
