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3CHAPTER TABLE OF CONTENTS Preface .......................................................IV Ho w This Book is Organized ...............................iv Conversions Used in This Book .......................v 1CHAPTER 2CHAPTER Introduction 2 Learning Goals ......................................................4 What is Scuba Diving? ..........................................5 What is Scuba Certification? .................................5 Wh at is NAUI? .......................................................6 NAUI Courses ...................................................6 NAUI Specialty Courses ...................................7 Wh at are the Risks of Scuba? ...............................7 A Little Apprehension is Normal .....................8 Misconceptions About Diving ..........................8 Wh at are Your Obligations? ..................................9 Attendance .......................................................9 Health ..............................................................9 Fitness ..............................................................9 Use of Drugs and Alcohol ..............................10 What’s Next .........................................................10 Diving Equipment 12 Learning Goals ....................................................14 Buying Equipment for Diving ............................14 Ba sic Personal Equipment .................................15 Masks ..............................................................15 Snorkels ..........................................................16 Booties .............................................................17 Fins ..................................................................18 Gloves ..............................................................19 Flotation Device ..............................................19 Maintenance ...................................................19 Cy linders ..............................................................20 Characteristics .................................................20 Valves ...............................................................22 Maintenance ...................................................23 Re gulators ...........................................................25 First Stage .......................................................25 Second Stage ...................................................26 Alternate Air Sources.......................................26 Gauges ............................................................27 Maintenance ...................................................30 Ad ditional Diving Instruments ...........................31 Timing Devices ...............................................31 Dive Computers ...............................................31 Backup Instrumentation ................................32 Maintenance ...................................................32 Bu oyancy Compensators ....................................32 Features ..........................................................32 Types ...............................................................33 Selection .........................................................34 Maintenance ...................................................34 We ights and Weight Belts ...................................36 Types of Weights .............................................36 Weight Belts, Harnesses, and Weighting Systems ..............................36 Quick Release of Weights ...............................37 Di ving Suits .........................................................37 Dive Skins ........................................................38 Wetsuits ............................................................38 Dry Suits ..........................................................39 Hoods ...............................................................40 Choosing the Correct Suit for the Conditions ........................................41 Maintenance ....................................................42 Ac cessory Equipment ..........................................42 Attachment Devices .........................................42 Knives...............................................................42 Gear Bags.........................................................43 Dive Flags and Floats ......................................43 Logbooks ..........................................................44 First Aid Kits .....................................................44 Other Accessories .............................................44 Conclusion ..........................................................45 Diving Skills 46 Learning Goals ....................................................48 Sn orkeling Skills .................................................48 Preparing Your Gear for Use ..........................48 Donning Your Gear ........................................49 Using Your Fins ..............................................50 Breathing through Your Snorkel ...................52 VI NAUI Scuba Diver Table of Contents


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