Deep sea divers Study guides, Revision notes & Summaries

SDI Computer Nitrox class Exam Questions With 100% Correct Answers. What are the most common symptoms of decompression sickness? - answerPain in the joints, numbness, paralysis, loss of balance, muscle weakness, and impaired thinking What is the recommended first aid for decompression sickness? - answerControlling 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...

SSI Open Water Exam With Correct Questions And Answers 2024 The term Surface Interval is defined as: - correct answer.The amount of time a diver stays out of the water or on the surface between dives. The most serious lung over expansion injury is: - correct answer.Arterial Gas Embolism Diving at altitude or flying after diving: - correct answer.Requires special diving computer functions, altitude tables and/or refraining from flying for at least 24 hours after the complet...

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 ...

The event that led to the use of the acronym SCUBA to describe diving was: A. Post-WWII equipment refinements B. The invention of the diving helmet in circa 1800 C. The development of the demand regulator in 1943 D. The development of air pumps in the 19th century - Answer- C. The development of the demand regulator in 1943 Absolute pressure is defined as: A. The pressure at the surface plus 1 ata B. The weight of the water that surrounds the diver C. The total pressure exerted on ...

SCUBA, SSI Open Water Diver Final Exam 2023(answered) <p>One atmosphere of pressure is defined as: a) Each 34 feet of depth in freshwater b) each 33 ft. of depth in saltwater c) 1 ata d) All answers are correct.</p><p>The absolute pressure expressed in terms of atmospheres absolute at 33 ft. in sea water is: a) 1 ata b) 3 ata c) 2 ata d) 4 ata</p><p>Underwater, the bending of light rays causes objects to appear to be: a) closer b) the ...

SCUBA, SSI Open Water Diver Final Exam 2023(answered) <p>One atmosphere of pressure is defined as: a) Each 34 feet of depth in freshwater b) each 33 ft. of depth in saltwater c) 1 ata d) All answers are correct.</p><p>The absolute pressure expressed in terms of atmospheres absolute at 33 ft. in sea water is: a) 1 ata b) 3 ata c) 2 ata d) 4 ata</p><p>Underwater, the bending of light rays causes objects to appear to be: a) closer b) the ...

SCUBA, SSI Open Water Diver Final Exam 2023(answered) <p>One atmosphere of pressure is defined as: a) Each 34 feet of depth in freshwater b) each 33 ft. of depth in saltwater c) 1 ata d) All answers are correct.</p><p>The absolute pressure expressed in terms of atmospheres absolute at 33 ft. in sea water is: a) 1 ata b) 3 ata c) 2 ata d) 4 ata</p><p>Underwater, the bending of light rays causes objects to appear to be: a) closer b) the ...

SSI Open Water Diver Certification final exam new questions and answers 2023 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 - -Divers find it easy to talk to each other directly through water The absolute p...

The term Surface Interval is defined as: - Answer- The amount of time a diver stays out of the water or on the surface between dives. The most serious lung over expansion injury is: - Answer- Arterial Gas Embolism Diving at altitude or flying after diving: - Answer- Requires special diving computer functions, altitude tables and/or refraining from flying for at least 24 hours after the completion of a dive If a diver is injured by harmful sea life, it is usually because of: A. The dive...

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 The condition...