SSI OPEN WATER DIVER FINAL EXAM
COMPLETE VERIFIED QUESTIONS &
ANSWERS 2026/2027 LATEST UPDATE
Two examples of hard coral are:
- A: fire and star
- B: elkhorn and staghorn
- C: sea fan and brain
- D: all answers are correct - B
More than of Earth's oxygen is produced by marine plants. - 85%
A dependent action to take in response to an out of air emergency is:
- A: an emergency buoyant ascent
- B: sharing air using the primary second stage and using the alternate air
source yourself
- C: a controlled swimming ascent
- D: all answers are correct - B
The absolute pressure expressed in terms of atmospheres absolute at 33 feet in
sea water is:
- A: 2 ata
- B:1 ata
1|Page
,- C: 4 ata
-D: 3 ata - A
The condition in which certain colors are diminished as depth increases is
called:
- A: Refraction
- B: Turbidity
- C: Diffusion
- D: Absorption - D
Which of the statements concerning 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 - C
Earplugs:
- 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 - C
2|Page
, 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 - D
Sinus squeeze can be prevented by:
-A: Valsalva technique
-B: Wearing earplugs
-C: Tilting the divers head back and forth
-D: Not diving with a cold - D
The event that led to the use of the acronym SCUBA to describe diving was:
Development of what and when? - Demand regulator in 1943
Ear squeeze can be prevented by
-A: Relaxing
- B: All answers are correct
- C: Never diving with a cold
- D: rotating the jaw, swallowing or Valsalva - B
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
3|Page
COMPLETE VERIFIED QUESTIONS &
ANSWERS 2026/2027 LATEST UPDATE
Two examples of hard coral are:
- A: fire and star
- B: elkhorn and staghorn
- C: sea fan and brain
- D: all answers are correct - B
More than of Earth's oxygen is produced by marine plants. - 85%
A dependent action to take in response to an out of air emergency is:
- A: an emergency buoyant ascent
- B: sharing air using the primary second stage and using the alternate air
source yourself
- C: a controlled swimming ascent
- D: all answers are correct - B
The absolute pressure expressed in terms of atmospheres absolute at 33 feet in
sea water is:
- A: 2 ata
- B:1 ata
1|Page
,- C: 4 ata
-D: 3 ata - A
The condition in which certain colors are diminished as depth increases is
called:
- A: Refraction
- B: Turbidity
- C: Diffusion
- D: Absorption - D
Which of the statements concerning 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 - C
Earplugs:
- 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 - C
2|Page
, 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 - D
Sinus squeeze can be prevented by:
-A: Valsalva technique
-B: Wearing earplugs
-C: Tilting the divers head back and forth
-D: Not diving with a cold - D
The event that led to the use of the acronym SCUBA to describe diving was:
Development of what and when? - Demand regulator in 1943
Ear squeeze can be prevented by
-A: Relaxing
- B: All answers are correct
- C: Never diving with a cold
- D: rotating the jaw, swallowing or Valsalva - B
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
3|Page
