SSI Open Water Exam With Correct Solutions 2024

SSI Open Water Exam With Correct Solutions 2024 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 - correct 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 - correct answer.2 ata The condition in which certain colors are diminished as depth increases is called: -Refraction -Turbidity -Diffusion -Absorption - correct answer.Absorption Earplugs -Aid equalization of the middle of the ear - Protect against cold -Should never be worn while diving -Protect ears from squeeze - correct 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 - correct 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 - correct answer.- Not diving with a cold The event that led to the use of the acronym SCUBA to describe diving was: - correct 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 - correct 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 - correct answer.- 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 - continue the descent while gently exhaling into the mask - correct answer.- continue the descent while gently exhaling into the mask Body heat is lost at a rate of ___ than air. - correct answer.25-30 times faster Proper equalization techniques must be learned in order to: -prevent sinus squeeze -prevent ear pain -prevent squeeze injuries - all answers are correct - correct answer.- all answers are correct Salt water weighs ___ pounds per cubic foot and freshwater weighs ___ pounds per cubic foot. - correct answer.64/62.5 Underwater, the bending of light rays causes objects to appear to be: - correct r