SSI Open Water Diver – Complete Study Guide, Key Concepts & Practice
Questions Review
Gauge pressure is defined as: - correct answer ✔✔Absolute pressure minus 1 ata
Underwater, the bending of light causes objects to: - correct answer ✔✔Appear closer
Absolute pressure is defined as: - correct answer ✔✔Total pressure exerted on an object
Describing SCUBA came from what event? - correct answer ✔✔Development of the demand
regulator in 1943
If you experience pain in your ears during decent? - correct answer ✔✔Stop the decent and
ascend until the pain stops
The condition in which certain colors are diminished at depth? - correct answer ✔✔Absorption
Ear squeeze can be prevented by? - correct answer ✔✔Rotating the jaw, swallowing, valsalva
Relaxing
Never diving with a cold
The first sign of a sinus squeeze? - correct answer ✔✔Crushing, wedging pain between the eyes
The SSI equipment service program is designed to? - correct answer ✔✔Keep all of the
components of the total diving system to optimal performance
, The three primary features to look for in an exposure system are? - correct answer
✔✔Thickness, fit, seam integrity
The most efficient breathing pattern for SCUBA is? - correct answer ✔✔A deep balanced
inhalation followed by a balanced exhalation with no pauses in between
During normal diving conditions, never exceed an ascent rate of? - correct answer ✔✔30 feet
per minute
The purpose of the BC is to? - correct answer ✔✔Control ascent and descent rates
Provide surface flotation
Maintain neutral buoyancy
Under the SSI equipment service program, your delivery system should be serviced every? -
correct answer ✔✔Every year
A SCUBA cylinder must be hydrostatically tested every: - correct answer ✔✔Within fixed
intervals set by local law
The information system components are? - correct answer ✔✔Dive Computer, Analogue
Instruments, if the Dive Computer does not supply all necessary information, and SSI Total
DiveLog
Which of the following overexpansion injuries can be characterized by swelling in the neck area
with a crackling sensation upon touching the swollen area? - correct answer ✔✔Subcutaneous
emphysema
The only accepted treatment for Arterial Gas Embolism is: - correct answer ✔✔Stabilize the
victim, medical treatment, decompression chamber
Questions Review
Gauge pressure is defined as: - correct answer ✔✔Absolute pressure minus 1 ata
Underwater, the bending of light causes objects to: - correct answer ✔✔Appear closer
Absolute pressure is defined as: - correct answer ✔✔Total pressure exerted on an object
Describing SCUBA came from what event? - correct answer ✔✔Development of the demand
regulator in 1943
If you experience pain in your ears during decent? - correct answer ✔✔Stop the decent and
ascend until the pain stops
The condition in which certain colors are diminished at depth? - correct answer ✔✔Absorption
Ear squeeze can be prevented by? - correct answer ✔✔Rotating the jaw, swallowing, valsalva
Relaxing
Never diving with a cold
The first sign of a sinus squeeze? - correct answer ✔✔Crushing, wedging pain between the eyes
The SSI equipment service program is designed to? - correct answer ✔✔Keep all of the
components of the total diving system to optimal performance
, The three primary features to look for in an exposure system are? - correct answer
✔✔Thickness, fit, seam integrity
The most efficient breathing pattern for SCUBA is? - correct answer ✔✔A deep balanced
inhalation followed by a balanced exhalation with no pauses in between
During normal diving conditions, never exceed an ascent rate of? - correct answer ✔✔30 feet
per minute
The purpose of the BC is to? - correct answer ✔✔Control ascent and descent rates
Provide surface flotation
Maintain neutral buoyancy
Under the SSI equipment service program, your delivery system should be serviced every? -
correct answer ✔✔Every year
A SCUBA cylinder must be hydrostatically tested every: - correct answer ✔✔Within fixed
intervals set by local law
The information system components are? - correct answer ✔✔Dive Computer, Analogue
Instruments, if the Dive Computer does not supply all necessary information, and SSI Total
DiveLog
Which of the following overexpansion injuries can be characterized by swelling in the neck area
with a crackling sensation upon touching the swollen area? - correct answer ✔✔Subcutaneous
emphysema
The only accepted treatment for Arterial Gas Embolism is: - correct answer ✔✔Stabilize the
victim, medical treatment, decompression chamber
