4/10/26, 2:01 PM NAUI Instructor EXAM QUESTIONS WITH COMPLETE SOLUTION GUIDE (A+ GRADED 100% VERIFIED) LATEST VERSION 20…
NAUI Instructor EXAM QUESTIONS WITH COMPLETE
SOLUTION GUIDE (A+ GRADED 100% VERIFIED) LATEST
VERSION 2026!!
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
1/27
,4/10/26, 2:01 PM NAUI Instructor EXAM QUESTIONS WITH COMPLETE SOLUTION GUIDE (A+ GRADED 100% VERIFIED) LATEST VERSION 20…
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
Haldane tissue compartments
Haldane - 5 compartments
Modern Computers - Apx. 16 compartments
2/27
, 4/10/26, 2:01 PM NAUI Instructor EXAM QUESTIONS WITH COMPLETE SOLUTION GUIDE (A+ GRADED 100% VERIFIED) LATEST VERSION 20…
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
3/27
NAUI Instructor EXAM QUESTIONS WITH COMPLETE
SOLUTION GUIDE (A+ GRADED 100% VERIFIED) LATEST
VERSION 2026!!
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
1/27
,4/10/26, 2:01 PM NAUI Instructor EXAM QUESTIONS WITH COMPLETE SOLUTION GUIDE (A+ GRADED 100% VERIFIED) LATEST VERSION 20…
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
Haldane tissue compartments
Haldane - 5 compartments
Modern Computers - Apx. 16 compartments
2/27
, 4/10/26, 2:01 PM NAUI Instructor EXAM QUESTIONS WITH COMPLETE SOLUTION GUIDE (A+ GRADED 100% VERIFIED) LATEST VERSION 20…
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
3/27
