SDI

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...

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. - 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. 4: All of the above. - All of the above. Which of the following st...

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. ...

SDI Computer Nitrox Questions and Answers 100% Pass True or False. Oxygen Enriched Air is a term some divers use to refer to Nitrox. True The air we normally breathe consists primarily of: Nitrogen and Oxygen A mixture of nitrogen and oxygen in which the percentage of oxygen is greater than that found in air is generally called: Enriched Air, Enriched Air Nitrox, Nitrox, Etc. The person who creates the Nitrox used to fill scuba cylinders is referred to as a: Blender Which of the following...

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Welding and Heating Treating - Answer- A ventilated hood, bench grinder, and a heavy duty bench vise are items that are found in the _____________ area of the gun shop. Cartridge Stop - Answer- According to the video, SDI Intro to Gunsmithing, which mechanism of the 12 gauge pump ejects the shell? F. Dumoulin - Answer- In the article titled, Gunsmithing Requires Innovation, the author had trouble finding reference material on which of the following barrel makers? False - Answer- True/...

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...

closer and larger - Answer- objects underwater appear ___ and ___ than they do on land 4 (none of the above) - Answer- As you descend: 1: Colors will remain largely the same. 2: Blues and grays disappear quickly. 3: Dive lights have little effect on apparent color. 4: None of the above. 25x - Answer- Water conducts heat away from your body ____x as fast as air does thermocline - Answer- When water stratifies itself into layers, according to temperature, the boundary between layers i...

SDI Final Exam Questions And Complete Solutions