SSI open water final exam questions and answers 100% pass

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SSI open water final exam questions and answers 100% pass Which of the statements concerning sound transmission underwater is incorrect? -Sound will travel farther underwater then in air -Divers f... ind 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 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 The condition in which certain colors are diminished as depth increases is called: -Refraction -Turbidity -Diffusion -Absorption ✔✔Absorption 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 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 Sinus squeeze can be prevented by: -Valsalva technique - Wearing earplugs - Tilting the divers head back and forth - Not diving with a cold ✔✔- Not diving with a cold The event that led to the use of the acronym SCUBA to describe diving was: ✔✔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 ✔✔-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 ✔✔- a sharp pain above the eyes 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 [Show More]

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