SSI Open Water Diver Final Exam Scuba
Diving Certification (Latest 2026 /
2027)100% Correct Questions & Answers
Which of the statements concerning sound transmission underwater is incorrect?
-Sound will travel farther underwater then in air
-Divers find it difficult to locate the direction of a sound producing source
-Divers find it easy to talk to each other directly through water
-Sound travels four times faster underwater than in air - Correct answer -Divers find
it easy to talk to each other directly through water
The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea
water is:
-2 ata
-1 ata
- 4 ata
- 3 ata - Correct answer 2 ata
The condition in which certain colors are diminished as depth increases is called:
,-Refraction
-Turbidity
-Diffusion
-Absorption - Correct answer Absorption
Earplugs
-Aid equalization of the middle of the ear
- Protect against cold
-Should never be worn while diving
-Protect ears from squeeze - Correct answer -Should never be worn while diving
Gauge pressure is defined as:
- Hydrostatic pressure minus 1 ata
- The pressure at the surface
- The depth reading on a gauge
- Absolute pressure minus 1 ata - Correct answer - Absolute pressure minus 1 ata
Sinus squeeze can be prevented by:
,-Valsalva technique
- Wearing earplugs
- Tilting the divers head back and forth
- Not diving with a cold - Correct answer - Not diving with a cold
The event that led to the use of the acronym SCUBA to describe diving was: - Correct
answer The development of the demand regulator in 1943
Ear squeeze can be prevented by
-Relaxing
-All answers are correct
- Never diving with a cold
- rotating the jaw, swallowing or Valsalva - Correct answer -All answers are correct
The first symptom of a sinus squeeze is usually:
- a dull pain deep within the head
- a sharp pain at the base of the neck
- a crushing pain high in the chest
, - a sharp pain above the eyes - Correct answer - a sharp pain above the eyes
If you experience pain in the ear during descent:
-Stop the descent and ascend till the pain stops
- abort the dive
-place a finger in the ear canal and gently massage the ear until the pain ceases
- continue the descent while gently exhaling into the mask - Correct answer - continue
the descent while gently exhaling into the mask
Body heat is lost at a rate of ___ than air. - Correct answer 25-30 times faster
Proper equalization techniques must be learned in order to:
-prevent sinus squeeze
-prevent ear pain
-prevent squeeze injuries
- all answers are correct - Correct answer - all answers are correct
Diving Certification (Latest 2026 /
2027)100% Correct Questions & Answers
Which of the statements concerning sound transmission underwater is incorrect?
-Sound will travel farther underwater then in air
-Divers find it difficult to locate the direction of a sound producing source
-Divers find it easy to talk to each other directly through water
-Sound travels four times faster underwater than in air - Correct answer -Divers find
it easy to talk to each other directly through water
The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea
water is:
-2 ata
-1 ata
- 4 ata
- 3 ata - Correct answer 2 ata
The condition in which certain colors are diminished as depth increases is called:
,-Refraction
-Turbidity
-Diffusion
-Absorption - Correct answer Absorption
Earplugs
-Aid equalization of the middle of the ear
- Protect against cold
-Should never be worn while diving
-Protect ears from squeeze - Correct answer -Should never be worn while diving
Gauge pressure is defined as:
- Hydrostatic pressure minus 1 ata
- The pressure at the surface
- The depth reading on a gauge
- Absolute pressure minus 1 ata - Correct answer - Absolute pressure minus 1 ata
Sinus squeeze can be prevented by:
,-Valsalva technique
- Wearing earplugs
- Tilting the divers head back and forth
- Not diving with a cold - Correct answer - Not diving with a cold
The event that led to the use of the acronym SCUBA to describe diving was: - Correct
answer The development of the demand regulator in 1943
Ear squeeze can be prevented by
-Relaxing
-All answers are correct
- Never diving with a cold
- rotating the jaw, swallowing or Valsalva - Correct answer -All answers are correct
The first symptom of a sinus squeeze is usually:
- a dull pain deep within the head
- a sharp pain at the base of the neck
- a crushing pain high in the chest
, - a sharp pain above the eyes - Correct answer - a sharp pain above the eyes
If you experience pain in the ear during descent:
-Stop the descent and ascend till the pain stops
- abort the dive
-place a finger in the ear canal and gently massage the ear until the pain ceases
- continue the descent while gently exhaling into the mask - Correct answer - continue
the descent while gently exhaling into the mask
Body heat is lost at a rate of ___ than air. - Correct answer 25-30 times faster
Proper equalization techniques must be learned in order to:
-prevent sinus squeeze
-prevent ear pain
-prevent squeeze injuries
- all answers are correct - Correct answer - all answers are correct
