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Exam (elaborations)

SDI Computer Nitrox class Exam With Complete Solutions

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  • SDI Computer Nitrox Class

SDI Computer Nitrox class Exam With Complete Solutions...

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  • September 15, 2024
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  • 2024/2025
  • Exam (elaborations)
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  • sdi computer nitrox class
  • SDI Computer Nitrox class
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SDI Computer Nitrox class Exam With Complete Solutions



What are common symptoms of decompression sickness? -Answer Pain in joints,
numbness, paralysis, loss of balance, muscle weakness, and impaired thinking



What is the usual first aid for decompression sickness? -Answer Keep them
temperature-controlled and give them pure oxygen, then fly them to a hospital as soon
as possible for the decompression chamber



What is the minimum percentage of oxygen that will sustain consciousness at sea level?
- Answer 16%



What is the maximum percentage of oxygen utilized by sport divers in a Nitrox mix? -
Answer 40%



What is the maximum depth to which 100 percent oxygen is recommended? - Answer 20
feet



What FO2 does EAN 32 have? - Answer 68% nitrogen and 32% oxygen



What are two reasons why EAN32 is a good choice for Nitrox diving? Answer Will
provide you with a good combination of extended bottom time and unrestricted depth
within the sport diving range, &. using EAN32 poses less risk in terms of exposure to
oxygen than other richer mixtures.



What is the maximum PO2 we use in Nitrox diving? Answer 1.6



What is the meaning of the term oxygen toxicity? -Answer condition that arises when the
diver breathes a mixture of gas that allows the PO2 to exceed 1.6 by going too deep or
exceeding the time limit at a lower PO2

, What is the major risk in Nitrox diving? -Answer Poisoning with Oxygen



What does the acronym CONVENTID stand for? Answer Con - convulsions, V - visual
disturbances,E - ringing/auditory hallucinations, N - nausea, T - twitching, I -
irritability/apprehension, D - dizziness



What does a Nitrox tank wrap used to identify Nitrox cylinders look like? Answer
adhesive decal, generally 10-13 cm/4-5 in in width, that is designed to completely
encircle the diameter of the tank. The tape is usually printed in yellow with bold green
letters with the words Enriched Air and/or Nitrox printed continuously on it. This tape
makes it quick and easy to spot a Nitrox bottle in a group of tanks.



What two most important information will appear on a Nitrox fill tag or label? - Answer
Nitrox mixture used in the tank (FO2) and its MOD



What is the single most important setting that needs to be made to your Nitrox computer
before each dive? - Answer oxygen % (FO2) needs to be set



What is an oxygen analyzer? -Answer electronic devices that are used to measure the
percentage of oxygen in a gas mixture



What two equipment items that do not have to be cleaned for oxygen service? - Answer
buoyancy compensators and their low pressure inflators and dry suit inflation valves



What does the term blender mean as it applies to Nitrox diving? Answer A Nitrox or gas
blender has specialized training allowing him or her to fill dive cylinders with the exact
gas that divers need for their planned dive



What is the acceptable range of accuracy blenders must adhere to when asked to
supply a Nitrox mixture with a particular FO2? Answer 1%

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