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NAUI eLEARNING OPEN WATER SCUBA DIVER
FINAL EXAM 2025 NEWEST ACTUAL EXAM
COMPLETE ACCURATE EXAM QUESTIONS WITH
DETAILED VERIFIED ANSWERS (100% CORRECT
ANSWERS) /ALREADY GRADED A+
The absolute pressure expressed in terms of
atmospheres absolute at 33 feet in sea water is:
-A: 2 ata
-B:1 ata
-C: 4 ata
-D: 3 ata - .....ANSWER ...✔✔ A: 2 ata
Gauge pressure is defined as:
-A: Hydrostatic pressure minus 1 ata
-B: The pressure at the surface
-C: The depth reading on a gauge
-D: Absolute pressure minus 1 ata - .....ANSWER
...✔✔ D: Gauge pressure is defined as Absolute
pressure minus 1 ata
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The first symptom of a sinus squeeze is usually:
-A: a dull pain deep within the head
-B: a sharp pain at the base of the neck
-C: a crushing pain high in the chest
-D: a sharp pain above the eyes - .....ANSWER ...✔✔
D: a sharp pain above the eyes
If you experience pain in the ear during descent:
-A: Stop the descent and ascend till the pain stops
-B: abort the dive
-C: place a finger in the ear canal and gently massage
the ear until the pain ceases
-D: continue the descent while gently exhaling into the
mask - .....ANSWER ...✔✔ A: Stop the descent and
ascend till the pain stops.
Body heat is lost at a rate of ___ than air. - .....ANSWER
...✔✔ 25-30 times faster
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Proper equalization techniques must be learned in order
to:
-A: prevent sinus squeeze
-B: prevent ear pain
-C: prevent squeeze injuries
-D: all answers are correct - .....ANSWER ...✔✔ D
The purpose of equalization is to:
-A: ensure the uneven application of pressure between
the water and air spaces in the body
-B: prevent water from entering air spaces in the body
-C: introduce additional air into body air spaces in
response to increasing external pressure
-D: remove all fluids from body air spaces - .....ANSWER
...✔✔ C: introduce additional air into body air spaces
in response to increasing external pressure
The three primary features to look for in a quality
Exposure System are: - .....ANSWER ...✔✔ Thickness,
fit, & seam integrity
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An object immersed in water will be buoyed upward by
a force ______ to the weight of the water it displaces. -
.....ANSWER ...✔✔ equal
A high pressure scuba cylinder should be stored:
-A: secured with a minimum of 500 to 750 psi
-B: lying flat with no air
-C: with the valve slightly open to allow air expansion
-D: secured with the valve open - .....ANSWER ...✔✔
A: A high pressure scuba cylinder should be stored
secured with a minimum of 500 to 750 psi
One of the primary factors contributing to heat loss for
divers is:
-A: Absorption
-B: Convection
-C: Diffusion
-D: Refraction - .....ANSWER ...✔✔ B: One of the
primary factors contributing to heat loss for divers is
Convection
NAUI eLEARNING OPEN WATER SCUBA DIVER
FINAL EXAM 2025 NEWEST ACTUAL EXAM
COMPLETE ACCURATE EXAM QUESTIONS WITH
DETAILED VERIFIED ANSWERS (100% CORRECT
ANSWERS) /ALREADY GRADED A+
The absolute pressure expressed in terms of
atmospheres absolute at 33 feet in sea water is:
-A: 2 ata
-B:1 ata
-C: 4 ata
-D: 3 ata - .....ANSWER ...✔✔ A: 2 ata
Gauge pressure is defined as:
-A: Hydrostatic pressure minus 1 ata
-B: The pressure at the surface
-C: The depth reading on a gauge
-D: Absolute pressure minus 1 ata - .....ANSWER
...✔✔ D: Gauge pressure is defined as Absolute
pressure minus 1 ata
,2|Page
The first symptom of a sinus squeeze is usually:
-A: a dull pain deep within the head
-B: a sharp pain at the base of the neck
-C: a crushing pain high in the chest
-D: a sharp pain above the eyes - .....ANSWER ...✔✔
D: a sharp pain above the eyes
If you experience pain in the ear during descent:
-A: Stop the descent and ascend till the pain stops
-B: abort the dive
-C: place a finger in the ear canal and gently massage
the ear until the pain ceases
-D: continue the descent while gently exhaling into the
mask - .....ANSWER ...✔✔ A: Stop the descent and
ascend till the pain stops.
Body heat is lost at a rate of ___ than air. - .....ANSWER
...✔✔ 25-30 times faster
,3|Page
Proper equalization techniques must be learned in order
to:
-A: prevent sinus squeeze
-B: prevent ear pain
-C: prevent squeeze injuries
-D: all answers are correct - .....ANSWER ...✔✔ D
The purpose of equalization is to:
-A: ensure the uneven application of pressure between
the water and air spaces in the body
-B: prevent water from entering air spaces in the body
-C: introduce additional air into body air spaces in
response to increasing external pressure
-D: remove all fluids from body air spaces - .....ANSWER
...✔✔ C: introduce additional air into body air spaces
in response to increasing external pressure
The three primary features to look for in a quality
Exposure System are: - .....ANSWER ...✔✔ Thickness,
fit, & seam integrity
, 4|Page
An object immersed in water will be buoyed upward by
a force ______ to the weight of the water it displaces. -
.....ANSWER ...✔✔ equal
A high pressure scuba cylinder should be stored:
-A: secured with a minimum of 500 to 750 psi
-B: lying flat with no air
-C: with the valve slightly open to allow air expansion
-D: secured with the valve open - .....ANSWER ...✔✔
A: A high pressure scuba cylinder should be stored
secured with a minimum of 500 to 750 psi
One of the primary factors contributing to heat loss for
divers is:
-A: Absorption
-B: Convection
-C: Diffusion
-D: Refraction - .....ANSWER ...✔✔ B: One of the
primary factors contributing to heat loss for divers is
Convection
