SSI Open Water Diver Final Exam study guide
COMPLETE EXAM Questions and Answers
(Verified Answers) (Latest Update 2026) UPDATE!!
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Which of the statements concerning C
sound transmission underwater is
incorrect?
-A: Sound will travel farther
underwater then in air
-B: Divers find it difficult to locate the
direction of a sound producing
source
-C: Divers find it easy to talk to each
other directly through water
-D: Sound travels four times faster
underwater than in air
The absolute pressure expressed in A
terms of atmospheres absolute at 33
feet in sea water is:
-A: 2 ata
-B:1 ata
-C: 4 ata
-D: 3 ata
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The condition in which certain colors D
are diminished as depth increases is
called:
-A: Refraction
-B: Turbidity
-C: Diffusion
-D: Absorption
Earplugs: C
-A: Aid equalization of the middle of
the ear
-B: Protect against cold
-C: Should never be worn while
diving
-D: Protect ears from squeeze
Gauge pressure is defined as: D
-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
Sinus squeeze can be prevented by: D
-A: Valsalva technique
-B: Wearing earplugs
-C: Tilting the divers head back and
forth
-D: Not diving with a cold
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