SSI Open Water Diver Final Exam Scuba
Diving Certification (Latest 2026 /
2027)100% Correct Questions & Answers
If a flexible air-filled container at 100 feet of sea water has a volume of 10 cu ft, what
would be the volume if it were transported to the surface?
-20 cu ft
-15 cu ft
-40 cu ft
-30 cu ft - Correct answer -40 cu ft
The transfer of oxygen and nitrogen into the bloodstream occurs through the walls of
the:
-Arteries
-Bronchiole trees
-Alveoli
-Blood vessels - Correct answer -Alveoli
,Which of the following would be inappropriate treatment for a diver evidencing
symptoms of Decompression Sickness?
-Giving them pure oxygen
-Taking the victim back underwater
-Giving them CPR
-Treat for shock - Correct answer -Taking the victim back underwater
The most serious lung overexpansion injury is:
-Arterial gas Embolism
-Mediastinal emphysema
-Pneumothorax
-Subcutaneous emphysema - Correct answer -Arterial gas Embolism
The term gradient can be described as: - Correct answer The difference between the
internal partial pressure and the external partial pressure of a gas
Which of the following overexpansion injuries can be characterized by chest pain,
breathing difficulties, weakness, and cyanosis (blueness) of the lips and nail beds:
,-bends
-Subcutaneous emphysema
-Mediastinal emphysema and Pneumothorax
-Rupture of the eardrum - Correct answer -Mediastinal emphysema and
Pneumothorax
In air at 1 ata, the partial pressure of nitrogen is___, oxygen is_____.
-.21/.79 ata
-1.5/.8 ata
- .79/.21 ata
- .8/.4 ata - Correct answer - .79/.21 ata
Gas can enter the bloodstream and cause serious damage to the lungs or even death
by:
-ascending to fast
-holding your breath underwater
-diving with respiratory congestion
-all answers are correct - Correct answer -all answers are correct
, The term No-decompression Limit is defined as: - Correct answer maximum allowed
time at depth without having to perform a mandatory decompression stop during the
ascent
To use a compass to navigate to a sighted object: - Correct answer Point the compass
toward the object, rotate the bezel until the witness marks are over the magnetic
needle, and follow the lubber line
A dive computer keeps track of a diver's nitrogen absorption levels so that the diver
can:
-Avoid an Arterial gas Embolism
-Stay within the no decompression limits on each dive
-dive deeper than 100 feet
- Make decompression dives - Correct answer -Stay within the no decompression
limits on each dive
You should perform a safety stop at 15 feet for 3 to 5 minutes on every dive.
Diving Certification (Latest 2026 /
2027)100% Correct Questions & Answers
If a flexible air-filled container at 100 feet of sea water has a volume of 10 cu ft, what
would be the volume if it were transported to the surface?
-20 cu ft
-15 cu ft
-40 cu ft
-30 cu ft - Correct answer -40 cu ft
The transfer of oxygen and nitrogen into the bloodstream occurs through the walls of
the:
-Arteries
-Bronchiole trees
-Alveoli
-Blood vessels - Correct answer -Alveoli
,Which of the following would be inappropriate treatment for a diver evidencing
symptoms of Decompression Sickness?
-Giving them pure oxygen
-Taking the victim back underwater
-Giving them CPR
-Treat for shock - Correct answer -Taking the victim back underwater
The most serious lung overexpansion injury is:
-Arterial gas Embolism
-Mediastinal emphysema
-Pneumothorax
-Subcutaneous emphysema - Correct answer -Arterial gas Embolism
The term gradient can be described as: - Correct answer The difference between the
internal partial pressure and the external partial pressure of a gas
Which of the following overexpansion injuries can be characterized by chest pain,
breathing difficulties, weakness, and cyanosis (blueness) of the lips and nail beds:
,-bends
-Subcutaneous emphysema
-Mediastinal emphysema and Pneumothorax
-Rupture of the eardrum - Correct answer -Mediastinal emphysema and
Pneumothorax
In air at 1 ata, the partial pressure of nitrogen is___, oxygen is_____.
-.21/.79 ata
-1.5/.8 ata
- .79/.21 ata
- .8/.4 ata - Correct answer - .79/.21 ata
Gas can enter the bloodstream and cause serious damage to the lungs or even death
by:
-ascending to fast
-holding your breath underwater
-diving with respiratory congestion
-all answers are correct - Correct answer -all answers are correct
, The term No-decompression Limit is defined as: - Correct answer maximum allowed
time at depth without having to perform a mandatory decompression stop during the
ascent
To use a compass to navigate to a sighted object: - Correct answer Point the compass
toward the object, rotate the bezel until the witness marks are over the magnetic
needle, and follow the lubber line
A dive computer keeps track of a diver's nitrogen absorption levels so that the diver
can:
-Avoid an Arterial gas Embolism
-Stay within the no decompression limits on each dive
-dive deeper than 100 feet
- Make decompression dives - Correct answer -Stay within the no decompression
limits on each dive
You should perform a safety stop at 15 feet for 3 to 5 minutes on every dive.
