NAUI Instructor Exam Questions and Answers 100% Pass

NAUI Instructor Exam Questions and Answers 100% Pass Henry's Law - The amount of gas dissolved in a liquid is directly related to its partial pressure above the liquid. Relationship of gas solubility and temperature - Solubility of gas decreases with increasing temperature (INVERSELY RELATED) Inert gas loading in relation to body tissue - Body tissue absorbs more inert gas as depth increases Benefit of Dive Computer compared to Dive Tables - Gives the diver credit for shallow portions of the dive Cold or Strenuous dive planning rule - Use the next greater dive TIME to determine letter group Equilibrium as it relates to nitrogen in the body - When the pressure of nitrogen is balanced between air and your body Haldane surfacing ratio - Originally 2:1 - Updated with new research to 1.58:1 Tissue compartment half-time - The time required for the compartment to absorb or eliminate half of the pressure difference between what it started with and the ambient pressure M-Value of tissue - The maximum allowable nitrogen (inert gas) pressure in a specific tissue NAUI recommendation for diving while pregnant - Do not dive while pregnant 2 | P a g e Created by Katelyn Whitman © 2025, All Rights Reserved. 100% PASS GUARANTEE Haldane tissue compartments - Haldane - 5 compartments Modern Computers - Apx. 16 compartments Tissue compartment - Mathematical model consisting of multiple theoretical tissues and their relative halftimes Fast compartments - short halftimes Slow compartments - long halftimes Ascent rate at altitude - Slower than at sea level Extend dive times with gas by - Decreased nitrogen and increased oxygen in breathing gas RNT - Residual Nitrogen Time Tme already spent at the repetitive dive depth (dive tables) Procedure for missed decompression stops - Remain out of the water, rest, breathe 100% oxygen, drink fluids, be monitored for signs of decompression illness, transported to a hyperbaric facility if symptoms arise SIT - Surface Interval Time Longer time at the surface allows for increased repeat dive times Canadian Dive Tables published by the Defense and Civil Institute of Environmental Medicine (DCIEM) - Based on 20+ years of research pioneered by Kidd and Stubbs (1962) Swiss Dive Tables - Developed by A.A. Bühlmann at the University of Zurich - EXTENDED TO INCLUDE ALTITUDE DIVING If the time spent making a "precautionary stop" at 5 msw (15 fsw) causes your Total Dive Time to exceed the Dive Time Limits, you should: - Use the Maximum Dive Time as your Total Dive Time 3 | P a g e Created by Katelyn Whitman © 2025, All Rights Reserved. 100% PASS GUARANTEE Aching pains an hour after a dive might be: - Decompression sickness ATA rating for most hyperbaric chambers for treating divers: - 6 ATA Haldane Tissue Half-Times (Compartments) - 5, 10, 20, 40, 75 Mins High altitude dive - Any dive at greater than 1000 feet Ideal hyperbaric chamber for dive injury - Multiplace, double-lock chamber rated for service to six atmospheres Repetitive Dive - Any dive started within 24 hours after a previous dive NAUI recommended minimum SIT time - 60 mins Dives shallower than 40 ft are considered how deep on NAUI Dive Tables - 40 ft How long after diving should you wait to fly - 24 hrs Can NAUI Dive Tables be applied for decompression of an altitude dive? - No Who created the RGBM Tables - Bruce R. Wienke Repetitive Dives must be - Shallower than the previous dive Minimun SIT for RGBM tables - One hour NAUI Safety Stop - 15 fsw (4.5 msw)/3 minutes RGBM Sea Level Tables can be used up to what altitude - 2000 ft (610 meters) RGBM Table Options - 0 - 2000 ft ft ft 4 | P a g e Created by Katelyn Whitman © 2025, All Rights Reserved. 100% PASS GUARANTEE Due to the difference in density of fresh water and ocean water, divers should adjust their ballast weight by adding or subtracting - About 2.5% of the combined weight of their dive gear and body weight Lubber line - Indicates the course or bearing the user will follow Stationary reference line on compass Basic types of compass - Direct and Indirect reading Marking a surface position is done by - Establishing a "fix" wi