Ssi Open Water Exam Practice Questions And Answers

The best prevention for decompression sickness is to: A-Never dive below 100 feet B-Plan your dive and dive your plan C-Never hold your breath D-Dive with a buddy that has a computer {Ans: B}The first thing you should do if you observe signs of panic in a diver underwater is: A-Locate your alternate air source in case it is needed B-Back off and assess the situation C-Surface and call for help D-Loosen your weight belt in case you need to drop it {Ans: A}Which of the statements concerning sound transmission underwater is correct? A-Sound travels four times faster underwater than in air B-Sound will travel farther underwater than in air C-All answers are correct D-Divers find it difficult to locate the direction of a sound producing source {Ans: C}Water comprises about ___ of the Earth's surface. A-72% B-85% C-66% D-50% {Ans: A}Decompression sickness occurs when: A_A diver stays at depth too long and surfaces too quickly B-All answers are correct C-The nitrogen tissue tolerance gradient is exceeded D-Excess nitrogen bubbles out of solution into the blood and tissues {Ans: B}The ocean is an important source of life because: A-It provides an endless supply of seafood