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