SSI open water final exam, SSI Open Water Final Exam, SSI Open Water D
Final Exam
Study online at https://quizlet.com/_hutv7u
1. Which of the statements concerning sound transmission underwater is incor-
rect?
-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: -Divers find it easy to talk to each
other directly through water
2. The absolute pressure expressed in terms of atmospheres absolute at 33 feet
in sea water is:
-2 ata
-1 ata
- 4 ata
- 3 ata: 2 ata
3. The condition in which certain colors are diminished as depth increases is
called:
-Refraction
-Turbidity
-Diffusion
-Absorption: Absorption
4. Earplugs
-Aid equalization of the middle of the ear
- Protect against cold
-Should never be worn while diving
-Protect ears from squeeze: -Should never be worn while diving
5. 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: - Absolute pressure minus 1 ata
6. Sinus squeeze can be prevented by:
-Valsalva technique
, SSI open water final exam, SSI Open Water Final Exam, SSI Open Water D
Final Exam
Study online at https://quizlet.com/_hutv7u
- Wearing earplugs
- Tilting the divers head back and forth
- Not diving with a cold: - Not diving with a cold
7. The event that led to the use of the acronym SCUBA to describe diving was:: The
development of the demand regulator in 1943
8. Ear squeeze can be prevented by
-Relaxing
-All answers are correct
- Never diving with a cold
- rotating the jaw, swallowing or Valsalva: -All answers are correct
9. 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: - a sharp pain above the eyes
10. 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: - continue the descent while
gently exhaling into the mask
11. Body heat is lost at a rate of ___ than air.: 25-30 times faster
12. Proper equalization techniques must be learned in order to:
-prevent sinus squeeze
-prevent ear pain
-prevent squeeze injuries
- all answers are correct: - all answers are correct
13. Salt water weighs ___ pounds per cubic foot and freshwater weighs ___
pounds per cubic foot.: 64/62.5
14. Underwater, the bending of light rays causes objects to appear to be:: closer
, SSI open water final exam, SSI Open Water Final Exam, SSI Open Water D
Final Exam
Study online at https://quizlet.com/_hutv7u
15. The purpose of equalization is to:
-ensure the uneven application of pressure between the water and air spaces
in the body
-prevent water from entering air spaces in the body
-introduce additional air into body air spaces in response to increasing external
pressure
-remove all fluids from body air spaces: -introduce additional air into body air spaces in response
to increasing external pressure
16. One atmosphere of pressure is defined as
-1 ata
-each 34ft of depth in freshwater
-each 33ft of depth in saltwater
-all answers are correct: -all answers are correct
17. The three primary features to look for in a quality Exposure System are:: Thick-
ness,fit, seam integrity
18. An object immersed in water will be buoyed upward by a force ______ the
weight of the water it displaces.: equal to
19. A high pressure scuba cylinder should be stored:
-secured with a minimum of 500 t0 750 psi
-lying flat with no air
-with the valve slightly open to allow air expansion
-secured with the valve open: -secured with a minimum of 500 t0 750 psi
20. The most efficient breathing pattern for scuba diving is:: deep balanced inhalation
followed by long balanced exhalation, without any pause
21. One of the primary factors contributing to heat loss for divers is:
-Absorption
-Convection
-Diffusion
-Refraction: -Convection
22. The Information System components are:: Dive Computer, Analogue Instruments, if the Dive
Computer does not supply all necessary information and SSI Total DiveLog
Final Exam
Study online at https://quizlet.com/_hutv7u
1. Which of the statements concerning sound transmission underwater is incor-
rect?
-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: -Divers find it easy to talk to each
other directly through water
2. The absolute pressure expressed in terms of atmospheres absolute at 33 feet
in sea water is:
-2 ata
-1 ata
- 4 ata
- 3 ata: 2 ata
3. The condition in which certain colors are diminished as depth increases is
called:
-Refraction
-Turbidity
-Diffusion
-Absorption: Absorption
4. Earplugs
-Aid equalization of the middle of the ear
- Protect against cold
-Should never be worn while diving
-Protect ears from squeeze: -Should never be worn while diving
5. 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: - Absolute pressure minus 1 ata
6. Sinus squeeze can be prevented by:
-Valsalva technique
, SSI open water final exam, SSI Open Water Final Exam, SSI Open Water D
Final Exam
Study online at https://quizlet.com/_hutv7u
- Wearing earplugs
- Tilting the divers head back and forth
- Not diving with a cold: - Not diving with a cold
7. The event that led to the use of the acronym SCUBA to describe diving was:: The
development of the demand regulator in 1943
8. Ear squeeze can be prevented by
-Relaxing
-All answers are correct
- Never diving with a cold
- rotating the jaw, swallowing or Valsalva: -All answers are correct
9. 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: - a sharp pain above the eyes
10. 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: - continue the descent while
gently exhaling into the mask
11. Body heat is lost at a rate of ___ than air.: 25-30 times faster
12. Proper equalization techniques must be learned in order to:
-prevent sinus squeeze
-prevent ear pain
-prevent squeeze injuries
- all answers are correct: - all answers are correct
13. Salt water weighs ___ pounds per cubic foot and freshwater weighs ___
pounds per cubic foot.: 64/62.5
14. Underwater, the bending of light rays causes objects to appear to be:: closer
, SSI open water final exam, SSI Open Water Final Exam, SSI Open Water D
Final Exam
Study online at https://quizlet.com/_hutv7u
15. The purpose of equalization is to:
-ensure the uneven application of pressure between the water and air spaces
in the body
-prevent water from entering air spaces in the body
-introduce additional air into body air spaces in response to increasing external
pressure
-remove all fluids from body air spaces: -introduce additional air into body air spaces in response
to increasing external pressure
16. One atmosphere of pressure is defined as
-1 ata
-each 34ft of depth in freshwater
-each 33ft of depth in saltwater
-all answers are correct: -all answers are correct
17. The three primary features to look for in a quality Exposure System are:: Thick-
ness,fit, seam integrity
18. An object immersed in water will be buoyed upward by a force ______ the
weight of the water it displaces.: equal to
19. A high pressure scuba cylinder should be stored:
-secured with a minimum of 500 t0 750 psi
-lying flat with no air
-with the valve slightly open to allow air expansion
-secured with the valve open: -secured with a minimum of 500 t0 750 psi
20. The most efficient breathing pattern for scuba diving is:: deep balanced inhalation
followed by long balanced exhalation, without any pause
21. One of the primary factors contributing to heat loss for divers is:
-Absorption
-Convection
-Diffusion
-Refraction: -Convection
22. The Information System components are:: Dive Computer, Analogue Instruments, if the Dive
Computer does not supply all necessary information and SSI Total DiveLog
