SDI SCUBA CERTIFICATION EXAM 2024 WITH 100% CORRECT ANSWERS

SDI SCUBA CERTIFICATION EXAM 2024 WITH 100% CORRECT ANSWERS Define SCUBA - correct answer S - self C - contained U - underwater B - breathing A - apparatus List 3 important scuba diving changes that occurred in 1950s - correct answer 1) published USN dive tables 2) invented the personal dive computer 3) equipment manufacturers made improvements to the design and workmanship of gear Name 3 different devices that modern dive computers replace - correct answer 1) dive tables 2) J-valves 3) depth gauges What sets SDI apart from other training agencies? - correct answer First dive training agency to provide entry level scuba instruction that incorporates the use of personal dive computers --> more streamlined scuba course w/ more instruction time in the water How much larger and closer do objects appear underwater and why? - correct answer Objects underwater appear 25% larger and 25% closer As light travels through the airspace created by the mask, it bends, creating a magnifying effect. How much faster does sound move through water than air and why? - correct answer 4 times faster becau