Deep sea divers Study guides, Revision notes & Summaries

Ear squeeze can be prevented by: - Relaxing - Never diving with a cold - Rotating the jaw, swallowing or Valsalva - All answers are correct - Answer- all answers are correct The purpose of equalization is to: - Ensure the uneven application of pressure between the water and air spaces in the body - Remove all fluids from body air spaces -Introduce additional air into body air spaces in response to increasing external pressure - Prevent water from entering air spaces in the body - Answ...

The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea water is: -A: 2 ata -B:1 ata -C: 4 ata -D: 3 ata - Answer- A: 2 ata Gauge pressure is defined as: -A: Hydrostatic pressure minus 1 ata -B: The pressure at the surface -C: The depth reading on a gauge -D: Absolute pressure minus 1 ata - Answer- D: Gauge pressure is defined as Absolute pressure minus 1 ata The first symptom of a sinus squeeze is usually: -A: a dull pain deep within the head -...

Which of the statements concerning sound transmission underwater is correct: A. Divers find it difficult to locate the direction of a sound producing source B. All answers are correct C. Sound will travel farther underwater than in air D. Sound travels four times faster underwater than in air All answers are correct Panic can be prevented by: A. Taking specialty training B. Honestly evaluating your diving limitations C. Properly maintaining your Total Diving System D. All answers are co...

Which of the statements concerning sound transmission underwater is incorrect? -A: Sound will travel farther underwater then in air -B: Divers find it difficult to locate the direction of a sound producing source -C: Divers find it easy to talk to each other directly through water -D: Sound travels four times faster underwater than in air - Answer- C The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea water is: -A: 2 ata -B:1 ata -C: 4 ata -D: 3 ata...

SSI open water final exam Question and answer 100% solved 2023Which 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 -Divers find it easy to talk to each other directly through water The absolute pressure expressed...

What are the most common symptoms of decompression sickness? - ACCURATE ANSWERS Pain in the joints, numbness, paralysis, loss of balance, muscle weakness, and impaired thinking What is the recommended first aid for decompression sickness? - ACCURATE ANSWERS Controlling their temperature and administering pure oxygen, then immediately getting them airlifted to a hospital for the decompression chamber What is the minimum concentration of oxygen required to maintain consciousness at sea level...

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 wat...

Which of the statements concerning sound transmission underwater is incorrect? -A: Sound will travel farther underwater then in air -B: Divers find it difficult to locate the direction of a sound producing source -C: Divers find it easy to talk to each other directly through water -D: Sound travels four times faster underwater than in air C The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea water is: -A: 2 ata -B:1 ata -C: 4 ata -D: 3 ata A ...

An initial disturbance in a system sets off a chain of events that does not favor stability and often abruptly displaces a system from its steady state: what is that? a. Positive Feedback b. Negative Feedback c. Disease d. Homeostasis ---ANSWER-- a. positive feedback What organ shrinks with age? a. Prostate b. Gums c. Heart d. All of the above ---ANSWER-- b. gums Which of the following is true? a. An infant will have a slower heart rate than an adult b. The elderly have better tempe...

Gauge pressure is defined as: - Answer- Absolute pressure minus 1 ata Underwater, the bending of light causes objects to: - Answer- Appear closer Absolute pressure is defined as: - Answer- Total pressure exerted on an object Describing SCUBA came from what event? - Answer- Development of the demand regulator in 1943 If you experience pain in your ears during decent? - Answer- Stop the decent and ascend until the pain stops The condition in which certain colors are diminished at de...