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SSI open water final exam with correct answers
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SSI open water final exam with correct answers
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SSI open water final exam with correctanswers
Which of the statements concerning sound 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 - ANSWER: ➡ -Divers find it easy to talk to
each other directly through water
The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea water is:
-2 ata
-1 ata
- 4 ata
- 3 ata - ANSWER: ➡ 2 ata
The condition in which certain colors are diminished as depth increases is called:
-Refraction
-Turbidity
-Diffusion
-Absorption - ANSWER: ➡ Absorption
Earplugs
-Aid equalization of the middle of the ear
- Protect against cold
-Should never be worn while diving
-Protect ears from squeeze - ANSWER: ➡ -Should never be worn while diving
, 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 - ANSWER: ➡ - Absolute pressure minus 1 ata
Sinus squeeze can be prevented by:
-Valsalva technique
- Wearing earplugs
- Tilting the divers head back and forth
- Not diving with a cold - ANSWER: ➡ - Not diving with a cold
The event that led to the use of the acronym SCUBA to describe diving was: - ANSWER: ➡ The
development of the demand regulator in 1943
Ear squeeze can be prevented by
-Relaxing
-All answers are correct
- Never diving with a cold
- rotating the jaw, swallowing or Valsalva - ANSWER: ➡ -All answers are correct
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 - ANSWER: ➡ - a sharp pain above the eyes
If you experience pain in the ear during descent:
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