SDI Study guides, Class notes & Summaries

CH 2 : What is the most important rule in scuba diving? never hold your breath CH 4 : Describe from start to finish the steps to disassembling your scuba system - remove accessories and weights - decompress the system : turn the valve knob completely clockwise, decompress the second gauges (purge button or auto inflator button to vent air remaining in the hoses) - detach the LP hose from the inflator assembly by pulling the collar back on the quick disconnect , unscrew the yoke knob u...

SDI EXAM 2024 WITH 100% CORRECT ANSWERS Objects under water appear: - correct answer Closer and larger than they do on land What happens to colors under water - correct answer As you descend, colors appear to fade, not intensify. Blues and grays are the last remaining colors at depth. Because sound travels faster under water: - correct answer Sound's increases speed under water makes it harder to determine the direction from which it is coming. Water conducts heat away from your b...

SDI FINAL EXAM 2024 WITH 100% CORRECT ANSWERS Objects under water appear: 1: The same size as they do on land. 2: Twice as large as they do on land. 3: Closer and larger than they do on land. 4: Smaller and farther away than they do on land. - correct answer Closer and larger than they do on land. As you descend: 1: Colors appear to fade. 2: Reds and oranges are among the first colors to disappear. 3: At 30 m/99 ft, little color remains other than blues, grays, blacks and whites. ...

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