NAUI Instructor EXAM STUDY GUIDE
2026/2027 ACCURATE QUESTIONS WITH
CORRECT DETAILED SOLUTIONS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. Henry's Law - ANSWER ✔ The amount of gas dissolved in a liquid is
directly related to its partial pressure above the liquid.
2. Relationship of gas solubility and temperature - ANSWER ✔ Solubility of
gas decreases with increasing temperature
(INVERSELY RELATED)
3. Inert gas loading in relation to body tissue - ANSWER ✔ Body tissue
absorbs more inert gas as depth increases
4. Benefit of Dive Computer compared to Dive Tables - ANSWER ✔ Gives
the diver credit for shallow portions of the dive
5. Cold or Strenuous dive planning rule - ANSWER ✔ Use the next greater
dive TIME to determine letter group
6. Equilibrium as it relates to nitrogen in the body - ANSWER ✔ When the
pressure of nitrogen is balanced between air and your body
7. Haldane surfacing ratio - ANSWER ✔ Originally 2:1 - Updated with new
research to 1.58:1
8. Tissue compartment half-time - ANSWER ✔ The time required for the
compartment to absorb or eliminate half of the pressure difference between
what it started with and the ambient pressure
,9. M-Value of tissue - ANSWER ✔ The maximum allowable nitrogen (inert
gas) pressure in a specific tissue
10.NAUI recommendation for diving while pregnant - ANSWER ✔ Do not
dive while pregnant
11.Most common SPG - ANSWER ✔ Sealed Bourdon Tube
12.Two most common computer models - ANSWER ✔ Tissue & Table based
13.Two Stage regulator - ANSWER ✔ Reg reduced cylinder pressure to
ambient pressure in two steps
14.Purpose of a Hydrostatic test - ANSWER ✔ To determine permanent
expansion of a cylinder
15.Modern regulator performance is defined in terms of - ANSWER ✔ Max
respiratory work level
16.Alpha flag represents - ANSWER ✔ A vessel restricted in its ability to
maneuver
17.Which of the following is not part of the cylinder valve? - ANSWER ✔
Diaphragm
18.Burst disc assembly - ANSWER ✔ Prevents cylinder rupture in the event
of over pressurization
19.Benefit of a Capillary tube depth gage - ANSWER ✔ Automatically
provides equivalent depth readings
when used at higher elevations
20.When budgeting a diving course, it is important to identify total associated
___ and remember expenses must not exceed ___. - ANSWER ✔ costs;
income
, 21.The prerequisite for authorization to teach the NAUI Wreck Penetration
Diver course is: - ANSWER ✔ is NAUI Wreck Penetration Diver
certification or its equivalent.
22.To enter the NAUI Divemaster course, a diver must have logged at least ___
dives, which shall be varied in environment depth and activities. - ANSWER
✔ 60
23.The chief risk management aim of NAUI members is: - ANSWER ✔ To
teach, promote, and practice safe recreational diving.
24.Entry-level student divers needing to exit the water should be: - ANSWER
✔ accompanied until they are all the way out of the water
25.A good way to get and keep students involved in the lesson is to: -
ANSWER ✔ Regularly ask questions on the subject of the presentation
26.In the event you are involved with a diving accident or incident, you should
completed the NAUI Accident Report and mail the report, along with
witness statements, course records, and any other documentation to: -
ANSWER ✔ NAUI's attorney
27.Continuing education courses produce higher net profits because: -
ANSWER ✔ The costs of conducting them are usually less.
28.Benjamin Bloom headed a group who developed a learning/teaching
taxonomy in: - ANSWER ✔ 1956
29.Who cannot obtain liability insurance through NAUI? - ANSWER ✔ A
NAUI Training Assistant
30.Which of the following is a correctly worded performance component of an
instructional objective? - ANSWER ✔ The student will be able to attach a
regulator to the valve.
31.The voting members of NAUI are: - ANSWER ✔ All active-status and
sustaining-status Instructor and Leadership members
2026/2027 ACCURATE QUESTIONS WITH
CORRECT DETAILED SOLUTIONS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. Henry's Law - ANSWER ✔ The amount of gas dissolved in a liquid is
directly related to its partial pressure above the liquid.
2. Relationship of gas solubility and temperature - ANSWER ✔ Solubility of
gas decreases with increasing temperature
(INVERSELY RELATED)
3. Inert gas loading in relation to body tissue - ANSWER ✔ Body tissue
absorbs more inert gas as depth increases
4. Benefit of Dive Computer compared to Dive Tables - ANSWER ✔ Gives
the diver credit for shallow portions of the dive
5. Cold or Strenuous dive planning rule - ANSWER ✔ Use the next greater
dive TIME to determine letter group
6. Equilibrium as it relates to nitrogen in the body - ANSWER ✔ When the
pressure of nitrogen is balanced between air and your body
7. Haldane surfacing ratio - ANSWER ✔ Originally 2:1 - Updated with new
research to 1.58:1
8. Tissue compartment half-time - ANSWER ✔ The time required for the
compartment to absorb or eliminate half of the pressure difference between
what it started with and the ambient pressure
,9. M-Value of tissue - ANSWER ✔ The maximum allowable nitrogen (inert
gas) pressure in a specific tissue
10.NAUI recommendation for diving while pregnant - ANSWER ✔ Do not
dive while pregnant
11.Most common SPG - ANSWER ✔ Sealed Bourdon Tube
12.Two most common computer models - ANSWER ✔ Tissue & Table based
13.Two Stage regulator - ANSWER ✔ Reg reduced cylinder pressure to
ambient pressure in two steps
14.Purpose of a Hydrostatic test - ANSWER ✔ To determine permanent
expansion of a cylinder
15.Modern regulator performance is defined in terms of - ANSWER ✔ Max
respiratory work level
16.Alpha flag represents - ANSWER ✔ A vessel restricted in its ability to
maneuver
17.Which of the following is not part of the cylinder valve? - ANSWER ✔
Diaphragm
18.Burst disc assembly - ANSWER ✔ Prevents cylinder rupture in the event
of over pressurization
19.Benefit of a Capillary tube depth gage - ANSWER ✔ Automatically
provides equivalent depth readings
when used at higher elevations
20.When budgeting a diving course, it is important to identify total associated
___ and remember expenses must not exceed ___. - ANSWER ✔ costs;
income
, 21.The prerequisite for authorization to teach the NAUI Wreck Penetration
Diver course is: - ANSWER ✔ is NAUI Wreck Penetration Diver
certification or its equivalent.
22.To enter the NAUI Divemaster course, a diver must have logged at least ___
dives, which shall be varied in environment depth and activities. - ANSWER
✔ 60
23.The chief risk management aim of NAUI members is: - ANSWER ✔ To
teach, promote, and practice safe recreational diving.
24.Entry-level student divers needing to exit the water should be: - ANSWER
✔ accompanied until they are all the way out of the water
25.A good way to get and keep students involved in the lesson is to: -
ANSWER ✔ Regularly ask questions on the subject of the presentation
26.In the event you are involved with a diving accident or incident, you should
completed the NAUI Accident Report and mail the report, along with
witness statements, course records, and any other documentation to: -
ANSWER ✔ NAUI's attorney
27.Continuing education courses produce higher net profits because: -
ANSWER ✔ The costs of conducting them are usually less.
28.Benjamin Bloom headed a group who developed a learning/teaching
taxonomy in: - ANSWER ✔ 1956
29.Who cannot obtain liability insurance through NAUI? - ANSWER ✔ A
NAUI Training Assistant
30.Which of the following is a correctly worded performance component of an
instructional objective? - ANSWER ✔ The student will be able to attach a
regulator to the valve.
31.The voting members of NAUI are: - ANSWER ✔ All active-status and
sustaining-status Instructor and Leadership members
