SSI open water final exam Questions and
Answers Graded A+
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:
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,-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
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
, - 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:
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
Answers Graded A+
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:
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,-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
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
, - 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:
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
