SSI SCUBA Open Water Diving Certification Questions with 100% Correct Answers | Latest Version 2024 | Verified

The purpose of equalization is to - Introduce additional air into body air spaces in response to increasing external pressure Body heat is lost ________ than in air - 25 to 30 times faster The absolute pressure expressed in terms of atmospheres absolute at 99 feet in salt water - 4 ata One atmosphere of pressure is defined as - - Each 34 feet of depth in freshwater - 1 ata - Each 33 feet of depth in sea water Describing diving with the acronym SCUBA came from what event? - The development of the demand regulator in 1943 Sinus squeeze can be prevented by - Not diving with a cold The greatest relative pressure change in sea water takes place between ___ and ___ feet - 0 and 33 Underwater, the bending of light rays causes objects to appear to be: - closer Ear squeeze can be prevented by: - - Relaxing - Never diving with a cold - Rotating the jaw, swallowing, or Valsalva