SDI Computer Nitrox Questions and Answers Verified 100% Correct

SDI Computer Nitrox Questions and Answers Verified 100% Correct 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: Administration of pure oxygen - ANSWER -The most important first-aid procedure for a diver suspected of suffering from decompression sickness is: Recompression in a hyperbaric chamber - ANSWER -Once a diver suspected of suffering from decompression sickness has been transported to a medical facility, proper treatment will primarily involve: 16 percent - ANSWER -What is the minimum concentration of oxygen required to maintain consciousness at sea level? 40 percent - ANSWER -The maximum percentage of oxygen that sport divers use in a Nitrox mixture is: 6 m/20 ft - ANSWER -What is the maximum recommended depth for using 100 percent oxygen? In which the Fraction of Oxygen (FO2) is 32 percent - ANSWER -The term EAN32 refers to a Nitrox mixture: 40 m/132 ft - ANSWER -The MOD for EAN32 is: True - 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 combination of safety and extended bottom time - ANSWER -EAN32 is a good choice for Nitrox diving because: 1.6 - ANSWER -The maximum partial pressure of oxygen (PO2) we use in Nitrox diving is: Pulmonary and Central Nervous System (CNS) - ANSWER -Types of oxygen toxicity include: Oxygen toxicity - ANSWER -The primary risk associated with Nitrox diving (as opposed to diving air) is: True - ANSWER -True or False. The D in the acronym CONVENTID stands for dizziness. Scar tissue in the sinuses - ANSWER -Which of the following is not a factor that may increase a diver's susceptibility to oxygen toxicity? False - ANSWER -True or False. Divers can limit the adverse effects of long-term exposure to nitrogen by diving Nitrox less than 20 times a year. False - ANSWER -True or False. The most important step divers can take to help avoid oxygen toxicity is to never exceed a PO2 of 2.0. False - ANSWER -True or False. The two gases that a Nitrox diving computer takes into consideration when computing your allowable bottom time are nitrous oxide and carbon monoxide. True - ANSWER -True or False. The minimum surface interval or Nitrox diving is 30 minutes; however, 60 minutes is preferred. 120 minutes - ANSWER -What is the recommended surface interval after extended dives with Nitrox? That a cylinder may contain Nitrox and must be accurately analyzed and labeled prior to use. - ANSWER -What does the presence of a Nitrox tank wrap signify? True - ANSWER -True or False. The two most important pieces of information that will appear on a Nitrox fill tag or label are FO2 and MOD. No changes are needed, unless required by manufacturer's specifications or local laws/regulations. - ANSWER -What are the changes that must be made to a regulator to prepare it for use with Nitrox mixtures whose FO2 does not exceed 40 percent? FO2 - ANSWER -What is the most important setting that must be made to your Nitrox computer before every dive? To compensate for heat loss on longer dives. - ANSWER -Why may you need additional thermal protection for Nitrox diving? An electronic device used to measure the percentage of oxygen in a gas mixture. - ANSWER -What is an oxygen analyzer? True - ANSWER -True or False. Because they come in contact with Nitrox only at very low pressures, BCs and dry suit valves do not need to be cleaned for oxygen service. To supply you with the gas that you ask for when you present your cylinder to be filled. - ANSWER -What of the following best describes the blender's job? False - ANSWER -True or False. You ask a Nitrox blender to fill your cylinders with EAN30, but they analyze at 32 percent. You should not be concerned, as this is within the acceptable range of accuracy for Nitrox fills. True - ANSWER -True or False. Oxygen sensors may be sensitive to factors such as temperature, moisture and age.