SSI Open Water Exam Practice – Study Guide, Key Concepts & Practice Questions
Review
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 - correct answer ✔✔C
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 - correct answer ✔✔D
One atmosphere of pressure is defined as:
A-Each 34 ft of depth in freshwater
B-Each 33 ft of depth in seawater
C-1 ata
D- all answers are correct - correct answer ✔✔D
If you experience pain in your ears during descent:
A-Stop descent and ascend unitl pain stops
B-Continue descent while gently exhaling into mask
C-Place finger in ear canal and gently massage ear until pain ceases
D-Abort dive - correct answer ✔✔A
, Underwater, the bending of light rays causes objects to appear to be:
A-Same as surface
B-Further away
C-At an angle consistent with bend of light
D-Closer - correct answer ✔✔D
The condition in which certain colors are diminished as depth increases is called:
A-Refraction
B-Diffusion
C-Turbidity
D-Absorption - correct answer ✔✔D
Describing diving with the acronym SCUBA came from what event?
A-Development of the demand regulator in 1943
B- Development of air pumps in 19th century
C-Invention of diving helmet in 1800
D-Post WWII equipment refinements - correct answer ✔✔A
Which of the statements concerning sound transmission underwater is correct?
A-Sound travels four times faster underwater than in air
B-Sound will travel farther underwater than in air
C-All answers are correct
D-Divers find it difficult to locate the direction of a sound producing source - correct answer
✔✔C
Review
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 - correct answer ✔✔C
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 - correct answer ✔✔D
One atmosphere of pressure is defined as:
A-Each 34 ft of depth in freshwater
B-Each 33 ft of depth in seawater
C-1 ata
D- all answers are correct - correct answer ✔✔D
If you experience pain in your ears during descent:
A-Stop descent and ascend unitl pain stops
B-Continue descent while gently exhaling into mask
C-Place finger in ear canal and gently massage ear until pain ceases
D-Abort dive - correct answer ✔✔A
, Underwater, the bending of light rays causes objects to appear to be:
A-Same as surface
B-Further away
C-At an angle consistent with bend of light
D-Closer - correct answer ✔✔D
The condition in which certain colors are diminished as depth increases is called:
A-Refraction
B-Diffusion
C-Turbidity
D-Absorption - correct answer ✔✔D
Describing diving with the acronym SCUBA came from what event?
A-Development of the demand regulator in 1943
B- Development of air pumps in 19th century
C-Invention of diving helmet in 1800
D-Post WWII equipment refinements - correct answer ✔✔A
Which of the statements concerning sound transmission underwater is correct?
A-Sound travels four times faster underwater than in air
B-Sound will travel farther underwater than in air
C-All answers are correct
D-Divers find it difficult to locate the direction of a sound producing source - correct answer
✔✔C
