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SSI open water final exam _ Tests Questions And Answers With Latest Updates.pdf
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8/29/24, 6:22 PMSSI open water final exam
Jeremiah
Terms in this set (53)
Which of the statements concerning sound -Divers find it easy to talk to each other directly through water
transmission underwater is incorrect?
-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
The absolute pressure expressed in terms of 2 ata
atmospheres absolute at 33 feet in sea water
is:
-2 ata
-1 ata
- 4 ata
- 3 ata
The condition in which certain colors are Absorption
diminished as depth increases is called:
-Refraction
-Turbidity
-Diffusion
-Absorption
Earplugs -Should never be worn while diving
-Aid equalization of the middle of the ear
- Protect against cold
-Should never be worn while diving
-Protect ears from squeeze
1/6
, 8/29/24, 6:22 PM
Gauge pressure is defined as: - Absolute pressure minus 1 ata
- Hydrostatic pressure minus 1 ata
- The pressure at the surface
- The depth reading on a gauge
- Absolute pressure minus 1 ata
Sinus squeeze can be prevented by: - Not diving with a cold
-Valsalva technique
- Wearing earplugs
- Tilting the divers head back and forth
- Not diving with a cold
The event that led to the use of the acronym The development of the demand regulator in 1943
SCUBA to describe diving was:
Ear squeeze can be prevented by -All answers are correct
-Relaxing
-All answers are correct
- Never diving with a cold
- rotating the jaw, swallowing or Valsalva
The first symptom of a sinus squeeze is - a sharp pain above the eyes
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
If you experience pain in the ear during - continue the descent while gently exhaling into the mask
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
Body heat is lost at a rate of ___ than air. 25-30 times faster
Proper equalization techniques must be - all answers are correct
learned in order to:
-prevent sinus squeeze
-prevent ear pain
-prevent squeeze injuries
- all answers are correct
Salt water weighs ___ pounds per cubic foot 64/62.5
and freshwater weighs ___ pounds per cubic
foot.
Underwater, the bending of light rays causes closer
objects to appear to be:
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