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SSI open water final exam Actual Questions and answers | Updated 2024/25
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SSI open water final exam Actual Questions and answers | Updated 2024/25
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SSI open water final exam ActualQuestions and answers | Updated
2024/25
Which of the statements concerning sound transmission underwater is incorrect?
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-Sound will travel farther underwater then in air ii ii ii ii ii ii ii ii
-Divers find it difficult to locate the direction of a sound producing source
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-Divers find it easy to talk to each other directly through water
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-Sound travels four times faster underwater than in air - -Divers find it easy to talk to each
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other directly through water
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The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea water
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is:
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-2 ata ii
-1 ata ii
- 4 ata
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- 3 ata - 2 ata
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The condition in which certain colors are diminished as depth increases is called:
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-Refraction ii
-Turbidity
-Diffusion
-Absorption - Absorption ii ii ii
Earplugs
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-Aid equalization of the middle of the ear
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- Protect against cold
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-Should never be worn while diving ii ii ii ii ii ii
-Protect ears from squeeze - -Should never be worn while diving
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Gauge pressure is defined as:
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- Hydrostatic pressure minus 1 ata
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- The pressure at the surface
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- The depth reading on a gauge
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- Absolute pressure minus 1 ata - - Absolute pressure minus 1 ata
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Sinus squeeze can be prevented by:
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-Valsalva technique ii ii
- Wearing earplugs
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- Tilting the divers head back and forth
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- Not diving with a cold - - Not diving with a cold
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, The event that led to the use of the acronym SCUBA to describe diving was: - The
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development of the demand regulator in 1943
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Ear squeeze can be prevented by
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-Relaxing ii
-All answers are correct ii ii ii
- Never diving with a cold
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- rotating the jaw, swallowing or Valsalva - -All answers are correct
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The first symptom of a sinus squeeze is usually:
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- a dull pain deep within the head
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- a sharp pain at the base of the neck
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- a crushing pain high in the chest
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- a sharp pain above the eyes - - a sharp pain above the eyes
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If you experience pain in the ear during descent:
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-Stop the descent and ascend till the pain stops
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- abort the dive
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-place a finger in the ear canal and gently massage the ear until the pain ceases
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- continue the descent while gently exhaling into the mask - - continue the descent while
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gently exhaling into the mask
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ii Body heat is lost at a rate of ___ than air. - 25-30 times faster
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Proper equalization techniques must be learned in order to:
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-prevent sinus squeeze ii ii
-prevent ear pain ii ii
-prevent squeeze injuries ii ii
- all answers are correct - - all answers are correct
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Salt water weighs ___ pounds per cubic foot and freshwater weighs ___ pounds per cubic
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foot. - 64/62.5
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ii Underwater, the bending of light rays causes objects to appear to be: - closer ii ii ii ii ii ii ii ii ii ii ii ii ii ii
The purpose of equalization is to:
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-ensure the uneven application of pressure between the water and air spaces in the body
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-prevent water from entering air spaces in the body ii ii ii ii ii ii ii ii ii
-introduce additional air into body air spaces in response to increasing external pressure ii ii ii ii ii ii ii ii ii ii ii ii ii
-remove all fluids from body air spaces - -introduce additional air into body air spaces in
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response to increasing external pressure
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One atmosphere of pressure is defined as
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-1 ata ii
-each 34ft of depth in freshwater ii ii ii ii ii
-each 33ft of depth in saltwater ii ii ii ii ii ii
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