Ssi Open Water Diver Final Exam 2022 Graded A+ (Actual Test 100% Verified)

Which of the following overexpansion injuries can be characterized by chest pain, breathing difficulties, weakness, and cyanosis (blueness) of the lips and nail beds: -A: bends -B: Subcutaneous emphysema -C: Mediastinal emphysema and Pneumothorax -D: Rupture of the eardrum {Ans: C}The most efficient breathing pattern for scuba diving is: {Ans: Deep inhale/exhale}You should perform a safety stop at 15 feet for 3 to 5 minutes on every dive. True False {Ans: True}More than ___ of Earth's oxygen is produced by marine plants. {Ans: 85%}The rate at which the body becomes saturated with nitrogen: -A: will vary based on factors, such as depth and blood supply to a particular area of the body -B: is always the same rate -C: is slower at the beginning of the process and faster at the end of the process -D: is faster t the beginning of the process and slower at the end of the process {Ans: A}The event that led to the use of the acronym SCUBA to describe diving was: Development of what and when? {Ans: Demand regulator in 1943}