PADI Open Water Diver Final Exam 115 Questions with Answers, Exams of Health sciences

Download PADI Open Water Diver Final Exam 115 Questions with Answers and more Exams Health sciences in PDF only on Docsity! 1 PADI Open Water Diver Final Exam 115 Questions with Answers As a newly certified PADI Open Water Diver, I will be trained to dive with buddy as deep as - Correct answer 18 meters/60 feet As you descend in water, the pressure - Correct answer increases A depth change of 10 meters/33 feet causes a pressure change of - Correct answer 1 bar/ate (atmosphere) If you take 6 liters of air from the surface to 20 meters/66 feet, the volume will be - Correct answer 2 liters (the density of the air would be three times the density at the surface) A balloon fully inflated and sealed at 10 meters/33 feet, would probably ______ during ascent to the surface - Correct answer burst A squeeze is caused by - Correct answer a pressure imbalance between the surrounding pressure and an air space Equalization is the process of - Correct answer adding air to an air space The most important rule in scuba diving is to - Correct answer breathes continuously and never holds your breath 1 2 During ascent I feel discomfort in my ears. I should - Correct answer stop, descend slightly, and allow trapped air to work its way out My buddy and I descend to 12 meters/40 feet. I would expect to use my air _____ at 6 meters/20 feet - Correct answer faster than The most efficient way to breathe dense air underwater is to breathe - Correct answer deeply and slowly Buoyancy - Correct answer a force that pushes an object in water upward Salt water causes more buoyancy than fresh water because it is _____ dense and weighs _____ - Correct answer more When I descend, my buoyancy tends to ________. When I ascend, it tends to _______ - Correct answer decrease, increase The three most important considerations in choosing scuba equipment are suitability, fit, and - Correct answer comfort The two basic fin styles are __________ fins - Correct answer adjustable and full-foot My primary considerations when choosing fins are fit and - Correct answer blade size 2 5 Buddy Provide Safety Check - Correct answer Begin with Review and Friend BCD, Weight, Releases, Air, Final Check If my buddy and I get separated, the general procedure is to - Correct answer 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 stop. This means we should begin our ascent when either of our SPGs reads - Correct answer 90 bar/1300 psi My buddy and I have just started our descent. I begin equalizing - Correct answer immediately, as soon as my head goes underwater During my descent, to control my buoyancy I add air to my BCD - Correct answer in small amounts, frequently To start my ascent, I should - Correct answer swim up gently To control my buoyancy while ascending, I should - Correct answer vents my BCD with in small amounts frequently 5 6 A safety stop is a stop between ______ and ______ for three to five minutes - Correct answer 6 m/20 ft., 3 m/10 ft When I reach the surface, the first thing I do is _______ - Correct answer inflate my BCD Wet suit - Correct answers most common exposure suits; provide insulation and protection; made with neoprene; doesn't keep you dry Dry suit - Correct answer provide the most insulation; keeps you dry with special watertight zippers and seals; most effective option for cooler water diving Skin suit - Correct answer aka body suits; provide little or no insulation; worn in warmer water for protection from minor cuts, scrapes, stings, and sunburn Which type of exposure suit requires special training? - Correct answer dry suit Which type of exposure suit requires a snug fit, without which water would carry away heat or it would be uncomfortable? - Correct answer wet suit A hood is important when diving in water cooler than approximately - Correct answer 21 degrees Celsius/ 70 degrees Fahrenheit 6 7 Which cutting tool is a bladed hook for cutting fishing line or net? - Correct answer z-knife What are three primary instruments I would normally have while diving? - Correct answer SPG, dive computer, compass Conditions that affect me while diving include - Correct answer temperature, water movement, sunlight, aquatic life, and bottom composition In most environments, as I go deeper the water gets - Correct answer colder Particles made of fine material affect visibility by - Correct answer remaining suspended for long periods The two types of water motion that affect me as a diver are - Correct answer waves and current If I were caught in a current and carried downstream past my planned exit, I should swim _______ the current - Correct answer across The most common injury divers suffer may be - Correct answer sunburn "Diving within my limits" simply means diving within the limits of my - Correct answer training, experience, and comfort 7 10 After establishing buoyancy for both of us, the primary concerns with an unresponsive diver at the surface are ______ and _______ - Correct answer checking for breathing, providing rescue breaths if needed To breathe from a free flowing regulator, I should hold the second stage - Correct answer with the mouthpiece pressed against my lips At a minimum, I should have _____ visual and _____ audible surface signaling devices - Correct answer 1, 1 The visual signaling device that I might use to signal aircraft is a - Correct answer signal mirror The ______ flag indicates that a vessel has divers in the water and can't maneuver - Correct answer Alpha If there are no specific laws, the rule of thumb is that I should stay within ____ of my dive flag - Correct answer 15 meters/50 feet One way to avoid disorientation while descending and ascending is to - Correct answer follows a reference During an underwater cleanup, my buddy and I fill up a large mesh utility bag with several kilograms/pounds of garbage. We should - Correct answer carries the bag in our hands 10 11 When choosing a slate, the main option I usually consider is - Correct answer size I log my dives - Correct answer to document training, as a reference tool, to share information, keep related information The minimum information I would typically log includes - Correct answer dive site name, the depth, dive time, and my buddy's name What might I have in a spare parts kit? - Correct answer spare mask strap, fin straps, harness/weight belt buckle, cable (pull) ties, adjustable wrench (spanner), pliers, screw drivers, hex wrenches (Allen keys), regulator mouthpiece, accessory clip, various sized cylinder valve/ DIN valve O-rings Before diving, I should refrain using _____ and ______ - Correct answer alcohol, tobacco As a new PADI Open Water Diver, I should refresh my dive skills with a PADI ReActivate after _____ of inactivity - Correct answer six months For practical purposes, air consists of oxygen (about 21%) and - Correct answer nitrogen (about 79%) The two primary factors that influence how much nitrogen dissolves into my body tissues during a dive are _____ and _____ - Correct answer depth, time 11 12 If I exceed established depth and time limits while diving and then surface, bubbles can form in my body tissues, causing ______ - Correct answer decompression sickness ______ track the amount of theoretical nitrogen in my body by measuring the depth and time throughout the dive - Correct answer dive computers A no stop dive means I can, if necessary, ascend directly to the surface without stopping _____ the dive - Correct answer at any time during Repetitive dive - Correct answer a dive made while I still have theoretical residual nitrogen in my body Dive tables like the RDP and redpoll use ____ tables to calculate repetitive dives - Correct answer three Advantages of a dive computer over dive tables include dive computers - Correct answer are easier to use than tables, help offset human error, and give me more time underwater Before, during, and/or between dives, my computer will tell me - Correct answer no stop limits, the ascent rate, emergency decompression information, and previous dive information The first step in setting up my dive computer is - Correct answer read the manufacturer instructions 12