SSI OPEN WATER DIVER FINAL FULL SOLUTION
STUDY GUIDE
◉ Proper equalization techniques must be learned in order to
Answer: Prevent ear pain
Prevent squeeze injuries
Prevent sinus squeeze
◉ Underwater, the bending of light rays causes objects to appear to
be
Answer: Closer
◉ Earplugs
Answer: NEVER wear when diving
◉ The condition in which certain colors are diminished as depth
increases is called
Answer: Absorption
◉ The absolute pressure expressed in terms of atmospheres
absolute at 99 feet in salt water is
Answer: 4 ata
, ◉ One atmosphere of pressure is defined as
Answer: Each 33 feet of depth is sea water
Each 34 feet in salt water
1 ata
◉ Ear squeeze can be prevented by
Answer: Never diving with a cold
Relaxing
Roatating the jaw, swallowing, Valsalva
◉ The first symptom of a sinus squeeze is usually
Answer: A sharp pain or wedging sensation above the eyes
◉ Absolute Pressure
Answer: The total pressure exerted on an object
◉ The purpose of equalization is to
Answer: Introduce additional air into body air spaces in response to
increasing external pressure
STUDY GUIDE
◉ Proper equalization techniques must be learned in order to
Answer: Prevent ear pain
Prevent squeeze injuries
Prevent sinus squeeze
◉ Underwater, the bending of light rays causes objects to appear to
be
Answer: Closer
◉ Earplugs
Answer: NEVER wear when diving
◉ The condition in which certain colors are diminished as depth
increases is called
Answer: Absorption
◉ The absolute pressure expressed in terms of atmospheres
absolute at 99 feet in salt water is
Answer: 4 ata
, ◉ One atmosphere of pressure is defined as
Answer: Each 33 feet of depth is sea water
Each 34 feet in salt water
1 ata
◉ Ear squeeze can be prevented by
Answer: Never diving with a cold
Relaxing
Roatating the jaw, swallowing, Valsalva
◉ The first symptom of a sinus squeeze is usually
Answer: A sharp pain or wedging sensation above the eyes
◉ Absolute Pressure
Answer: The total pressure exerted on an object
◉ The purpose of equalization is to
Answer: Introduce additional air into body air spaces in response to
increasing external pressure
