PADI Open Water Diver Final Exam with 100% Correct Answers 2024 updated

PADI Open Water Diver Final Exam with 100% Correct Answers 2024 updated As a newly certified PADI Open Water Diver, I will be trained to dive with buddy as deep as - ANSWERS 18 metres/60 feet As you descend in water, the pressure - ANSWERS increases A depth change of 10 metres/33 feet causes a pressure change of - ANSWERS 1 bar/ata (atmosphere) if you take 6 liters of air from the surface to 20 metres/66 feet, the volume will be - ANSWERS 2 litres (the density of the air would be three times the density at the surface) A balloon fully inflated and sealed at 10 metres/33 feet, would probably ______ during ascent to the surface - ANSWERS burst A squeeze is caused by - ANSWERS a pressure imbalance between the surrounding pressure and an air space Equalization is the process of - ANSWERS adding air to an air space The most important rule in scuba diving is to - ANSWERS breathe continuously and never hold your breath During ascent I feel discomfort in my ears. I should - ANSWERS stop, descend slightly, and allow trapped air to work its way out My buddy and I descend to 12 metres/40 feet. I would expect to use my air _____ at 6 metres/20 feet - ANSWERS faster than The most efficient way to breathe dense air underwater is to breathe - ANSWERS deeply and slowly Buoyancy - ANSWERS a force that pushes an object in water upward Salt water causes more buoyancy than fresh water because it is _____ dense and weighs _____ - ANSWERS more When I descend, my buoyancy tends to ________. When I ascend, it tends to _______ - ANSWERS decrease, increase The three most important considerations in choosing scuba equipment are suitability, fit, and - ANSWERS comfort The two basic fin styles are __________ fins - ANSWERS adjustable and full-foot My primary considerations when choosing fins are fit and - ANSWERS blade size BCD (buoyancy control device) - ANSWERS holds your kit together and allows you to adjust buoyancy throughout the dive Regulator - ANSWERS delivers breathing air at the surrounding pressure when you inhale and directs exhaled air into the air Cylinder - ANSWERS holds the high-pressure breathing air supplied by your regulator during the dive Weight System - ANSWERS holds lead weight to counteract the positive buoyancy of your body and some of your equipment, with a mechanism for dropping some or all the weight in an emergency The five components that make up a BCD include - ANSWERS an inflatable bladder, a cylinder band and harness/jacket, an LPI (low-pressure inflator) mechanism, an overpressure/quick exhaust valves, and a weight system LPI mechanism - ANSWERS inflates the BCD with air from my scuba cylinder Burst disk - ANSWERS a safety device that relieves accidental overpressure by releasing air before reaching the pressure at which the cylinder would fail scuba cylinders require pressure testing _______ and visual inspection _________ - ANSWERS every 2-5 years, annually The most important feature in my weight system is its - ANSWERS quick release Trim means having the right _____ of weight - ANSWERS distribution Failure to follow the most important rule in scuba diving can cause serious lung overexpansion injuries, which in turn can cause paralysis and death - ANSWERS true An object that is neutrally bouyant in fresh water will _____ in salt water - ANSWERS float Underwater objects appear - ANSWERS larger and/or closer Sound travels about 4 times _____ in water than in air, making it difficult to determine its source - ANSWERS faster To move efficiently as a diver, I should move - ANSWERS slowly and steadily Trim is important for streamlining because - ANSWERS poor trim raises or lowers my feet, causing drag Overexertion results from - ANSWERS a prolonged increased effort Buddy Predive Safety Check - ANSWERS Begin With Review And Friend BCD, Weight, Releases, Air, Final Check If my buddy and I get separated, the general procedure is to - ANSWERS look for each other for no more than a minute, then reunite on the surface My buddy and I are planning a boat dive with the same type cylinders filled to 200 bar/3000 psi. Due to conditions, we are planning very conservatively. We agree on 60 bar/800 psi for our reserve. We agree that we also want an additional 30 bar/500 psi for our ascent and safety s