PADI Open Water Diver Final Exam | 115 Questions with Answers, Exams of Earth Sciences

Download PADI Open Water Diver Final Exam | 115 Questions with Answers and more Exams Earth Sciences in PDF only on Docsity! 1Error! Use the Home tab to apply Heading 1 to the text that you want to appear here.Chapter 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 metres/60 feet As you descend in water, the pressure - Correct answer increases A depth change of 10 metres/33 feet causes a pressure change of - Correct answer 1 bar/ata (atmosphere) if you take 6 liters of air from the surface to 20 metres/66 feet, the volume will be - Correct answer 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 - 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 breathe continuously and never hold your breath 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 metres/40 feet. I would expect to use my air _____ at 6 metres/20 feet - Correct answer faster than The most efficient way to breathe dense air underwater is to breathe - Correct answer deeply and slowly 1 2Error! Use the Home tab to apply Heading 1 to the text that you want to appear here.Chapter 1 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 BCD (buoyancy control device) - Correct answer holds your kit together and allows you to adjust buoyancy throughout the dive Regulator - Correct answer delivers breathing air at the surrounding pressure when you inhale and directs exhaled air into the air Cylinder - Correct answer holds the high-pressure breathing air supplied by your regulator during the dive Weight System - Correct answer 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 - Correct answer 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 - Correct answer inflates the BCD with air from my scuba cylinder 2 5Error! Use the Home tab to apply Heading 1 to the text that you want to appear here.Chapter 1 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 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 The type of interaction I should generally have with aquatic life is - Correct answer passive Potentially hazardous aquatic animals are, broadly, those that _____ and those that ______ - Correct answer sting/puncture, bite 5 6Error! Use the Home tab to apply Heading 1 to the text that you want to appear here.Chapter 1 While underwater near a kelp forest, my buddy and I see a large shark approach. We should - Correct answer remain calm, near the bottom, and watch it One potential hazard of some plants and kelp is - Correct answer entanglement ______ and ______ generally determine the best way to wade in and out or how soon I put my fins on - Correct answer bottom composition, aquatic life My buddy and I experience mild surge after entering the water. We may be able to adjust for this by diving - Correct answer deeper Tides affect conditions related to diving including - Correct answer currents, depth, and visibility While entering through mild turf, as a wave approaches, I should stand - Correct answer sideways to it By accident, I find myself in a strong current rushing rapidly away from shore. Generally, I should inflate my BCD and swim - Correct answer parallel to shore My buddy and I are boat diving with a mild current. After entering, we would use the ____ line to pull ourselves to the ____ line, which we will descend along to the bottom - Correct answer swim, mooring/anchor The four stages of dive planning are - Correct answer advance planning, preparation planning, last-minute preparation, and predive planning Typically, I decide on a dive buddy or dive operator during - Correct answer advance planning _______ is what I do a few hours before, to right up to when I leave for the dive site - Correct answer last-minute preparation I want to begin _____ at least a day or two before the dive - Correct answer preparation planning 6 7Error! Use the Home tab to apply Heading 1 to the text that you want to appear here.Chapter 1 During _______, my buddy and I settle on details and make decisions based upon what we find at the dive site - Correct answer predive planning When assisting a responsive diver at the surface, I always begin by - Correct answer establishing buoyancy for myself and the diver 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 freeflowing 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 metres/50 feet One way to avoid disorientation while descending and ascending is to - Correct answer follow 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 carry the bag in our hands 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 7