PADI Open Water Diver Exam Questions and Answers 2024, Exams of Physical Activity and Sport Sciences

Download PADI Open Water Diver Exam Questions and Answers 2024 and more Exams Physical Activity and Sport Sciences in PDF only on Docsity! 1 PADI Open Water Diver Exam Questions and Answers 2024 As a newly certified PADI Open Water Diver, I will be trained to dive with a buddy as deep as ________. correct answers 18 metres/60 feet Certain medical conditions can be hazardous while diving, so it is important to answer all questions on the Medical Statement honestly and completely. a. True b. False correct answers a. True PADI courses are performance-based. This means that to be certified, I must ________ correct answers meet specific performance requirements. Failure to complete assigned independent study can create significant delays, and my instructor may have to cancel and reschedule sessions until I complete the assignment. a. True b. False correct answers a. True While diving in a new dive environment, two benefits of seeking an orientation, supervision and/or additional training are that it helps me avoid problems and that it helps me enjoy the dive more. a. True b. False correct answers a. True As you descend in water the pressure ________ correct answers increases A depth of 10 metres/33 feet causes a pressure change of ________. correct answers 1 bar/ata If you take 6 liters of air from the surface to 20 metres/66 feet, the volume will be ________. correct answers 2 litres The density of the air in 6 litres from the surface to 20 metres/66 feet is ________ correct answers three times greater A balloon fully inflated and sealed at 10 metres/33 feet, would probably ________ during ascent to the surface. correct answers burst As I descend, increasing pressure affects my (choose all that apply): correct answers mask, ears and sinuses A squeeze is caused by ________ correct answers a pressure imbalance between the surround pressure and an air space Equalization is the process of ________ correct answers adding air to an air space I should equalize ________ correct answers before I feel pain or discomfort 2 I'm descending and discover I can't equalize. The first thing I would do is ________ correct answers stop my descent and signal my buddy/the instructor I equalize gently because an extended, forceful equalization can cause permanent damage to my ears and hearing. a. True b. False correct answers a. True On a day I plan to go diving, I wake up with my sinuses blocked due to a cold or allergy. I should ________ correct answers cancel the dive until I'm well When scuba diving, normal breathing keeps your lungs equalized to the surrounding pressure. a. True b. False correct answers a. True The most important rule in scuba diving is to ________ correct answers breathe continuously and never hold your breath Failure to follow the most important rule in scuba diving can cause severe lung overexpansion injuries, which can result in paralysis or death. a. True b. False correct answers a. True During ascent I feel discomfort in my ears. I should ________ correct 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. correct answers faster than The most efficient way to breathe dense air underwater is to breathe ________ correct answers deeply and slowly My body responds to anxiety with increased breathing, but slow breathing helps reduce anxiety. a. True b. False correct answers a. True What are the breathing rules I must follow as a diver? correct answers - Breathe continuously and never, ever, hold my breath - Breathe slowly and deeply - Do not allow myself to get winded or out-of-breath - If faced with a problem, stop, then maintain or restore slow, deep breathing Buoyancy is a force that pushes an object in water upward. a. True b. False correct answers a. True 5 Identify the four systems that make up a scuba kit. correct answers Cylinder, BCD, Regulator, Weight System There's no real benefit to choosing the components of my scuba kit as an integrated package. a. True b. False correct answers b. False Although the components are generally interchangeable, choosing your scuba kit as a package helps you best meet your preferences Inflatable Bladder correct answers very durable bag that you inflate or deflate to change your buoyancy Cylinder band and harness/jacket correct answers The bladder integrates with an adjustable harness that holds the cylinder on your back. The bladder may be entirely behind you, or wrap partially around your waist and/or over your shoulders. With some systems, you can interchange harnesses and bladders to accommodate sizing and preferences. LPI (low-pressure inflator) mechanism correct answers Usually at the end of a large-diameter hose, the LPI inflates the bladder with air from your cylinder, via the regulator, when you press a button. Another button allows you to deflate the bladder, or inflate it orally. Overpressure/quick exhaust valves correct answers to prevent rupturing the bladder due to overfilling, BCDs have one or more overpressure valves that automatically vent if the BCD is too full. Some may have "quick dump" valves that let you manually release air, which is sometimes easier (due to your position in the water) that using the LPI exhaust. Shoulder quick release correct answers a quick-release buckle on one or both shoulders makes it easier to get out of your kit Buoyancy Capacity correct answers Most BCDs cover a wide range of diving circumstances. Your BCD should have ample buoyancy to easily float you and all your equipment at the surface. You sometimes hear the amount of buoyancy called "lift" capacity. The LPI mechanism inflates the BCD with air from my scuba cylinder. a. True b. False correct answers a. True My BCD should have adequate capacity to easily float my equipment and me at the surface. a. True b. False correct answers a. True My BCD should fit ________ correct answers snugly but not restrict breathing when fully inflated My buddy is rinsing a BCD and partially fills the bladder with water. Is this consistent with recommended BCD care? correct answers yes 6 Submersible Pressure Gauge (SPG) correct answers tells you the air pressure remaining in your cylinder so you can manage your air supply Alternate Air Source correct answers an extra second stage you use for sharing air with a buddy should the need arise Pony Bottles correct answers small cylinders with their own regulators, so they're completely separate from your main scuba kit Second Stage correct answers reduces the first stage intermediate pressure to the pressure around you and delivers air only when you inhale - on demand First Stage correct answers hub of your regulator that is a simple and reliable device that supplies air to all the other components Yoke correct answers holds the first stage to the cylinder with a clamp system The most important consideration when choosing a regulator is ________ correct answers ease of breathing When choosing an alternate air source, a primary consideration involves deciding ________ correct answers between independence and simplicity My SPG is always part of my dive computer. a. True b. False correct answers b. False Your SPG may be an independent instrument or it may be integrated into your dive computer My local dive pro will usually set up my regulator components. a. True b. False correct answers a. True When setting up and wearing a kit, the alternate air source ________ correct answers secures in the triangle formed by my hips and chin Regulators need periodic overhauls, typically every year to two years. a. True b. False correct answers a. True The ________ is a safety device that relives accidental overpressure by releasing air before reaching the pressure at which the cylinder would fail. correct answers burst disk A cylinder with a higher working pressure always holds more air than a cylinder with a lower working pressure. a. True 7 b. False correct answers b. False A cylinder's capacity depends upon both its working pressure and its internal capacity I bring a cylinder aboard a diver boat in preparation for a trip out to a nearby reef. The normal procedure would be to ________ correct answers secure the cylinder in a rack Scuba cylinders require pressure testing ________ and visual inspections ________ correct answers every 2-5 years, annually I should have my scuba cylinder filled ________ correct answers only by reputable scuba air stations The most important feature in my weight system is its ________ correct answers quick release I must be able to quickly release enough weight to float reliably in an emergency, but not necessarily all my weight. a. True b. False correct answers a. True Trim means having the right ________ of weight. correct answers distribution One reason for wearing more than one weight system is that it is sometimes easier than handling a single, heavier one. a. True b. False correct answers a. True Accessory weights ________ correct answers can help you adjust your trim Underwater objects appear ________ correct answers larger and/or closer My buddy has a bright red shoulder patch on his wet suit. If we're diving together in very clear water on a sunny day, at 12 metres/40 feet I would expect the patch to appear ________ correct answers less red than at the surface Because water is denser than air, it takes more effort to move through water. a. True b. False correct answers a. True To move efficiently as a dive, I should move ________ correct answers slowly and steadily Streamlining benefits me as a diver because it reduces drag, which helps me save energy. a. True b. False correct answers a. True Trim is important for streamlining because ________ correct answers poor trim raises or lowers my feet, causing drag 10 For the 50 meter/yard swim, my buddies and I will swim ________ because it is less tiring. correct answers on our backs To stay with my buddy while surface swimming, generally it works well to swim ________ correct answers side by side Five steps you follow when you descend are ________ correct answers 1. Confirm that your buddies are ready 2. Orient yourselves to something at the surface or underwater, such as the boat or a landmark 3. Switch from your snorkel to your regulator 4. Check, and if necessary activate, your dive computer or timer 5. Signal "descend" and, with your buddies, slowly deflate your BCD I'm descending in open water with my buddies. After confirming they are ready, the next step is to signal "descend" and slowly deflate my BCD. a. True b. False correct answers b. False You orient yourself, switch to your regulator and check your dive computer or timing device before deflating your BCD When descending with a reference, I would normally ________ correct answers use it as a visual reference only My buddy and I have just started our descent. I begin equalizing ________ correct answers immediately, as soon as my head goes underwater As I descend while wearing a wet suit, my buoyancy will tend to ________ correct answers decrease During my descent, to control my buoyancy I add air to my BCD ________ correct answers in small amounts, frequently Five steps you follow when you ascend are ________ correct answers 1. Signal "up" and confirm that your buddies are ready 2. Check your dive computer to be sure you're within its limits 3. Look up and hold up your BCD deflator hose. 4. Ascend slowly, no faster than 18 meters/60 feet per minute but 10 meters/30 feet per minute is better 5. Look up and turn as you ascend, and stay with your buddies. Watch for obstacles overhead. Reach up as you near and break through the surface A safety stop is ________ correct answers a simple pause in your ascent between 6 meters/20 feet and 3 meters/10 feet (commonly 5 meters/15 feet) for three to five minutes Before starting my ascent, I should check my dive computer to be sure I'm within its limits. a. True 11 b. False correct answers a. True To start my ascent, I should ________ correct answers swim up gently When I'm ascending, I should ascend ________ correct answers slowly - no slower than 18 meter/60 feet per minute I'm ascending from a dive during which I'm wearing a wet suit. My buoyancy will ________ as I ascend, unless I adjust it with my BCD. correct answers increase To control my buoyancy while ascending, I should ________ correct answers vent my BCD in small amounts frequently I would never find it necessary to ascend without a reference. a. True b. False correct answers b. False You may have to ascend away from a planned reference due to losing direction or to handle an emergency or problem. A safety stop is between ________ and ________ for three to five minutes. correct answers 6m/20ft, 3m/10ft When I reach the surface, the first thing I do is ________ correct answers inflate my BCD Skin suits (body suits) correct answers wear them in comfortably warm water to protect you from minor cuts, scrapes, stings and sunburn I wear an exposure suit while diving for ________ correct answers protection and warmth Which type of exposure suit requires a snug fit, without which water would carry away heat or it would be uncomfortable? correct answers wet suit Which type of exposure suit requires special training? correct answers dry suit A hood is important when diving in water cooler than approximately 70 degrees. a. True b. False correct answers a. True It's a hot, sunny day but my buddy and I are diving in water that is 70 degrees. I'm diving in a dry suit and my buddy is diving in a full wet suit. Both of us will wear hoods. In this situation ________ is likely an issue we need to avoid before the dive. correct answers overheating Dive knife correct answers stainless steel or titanium knife, usually with a sharp cutting edge and a serrated (sawing) edge Dive tool correct answers generally a dive knife with the sharp tip replaced with a prying tool 12 Shears correct answers suited to cutting fishing line and net Z-knives correct answers Hooks with a blade specifically for cutting fishing line or net. They let you cut quickly, and their shape reduces the risk of accidentally cutting yourself or your equipment The primary reason I carry a cutting tool is to defend myself against sharks and other aquatic animals. a. True b. False correct answers b. False You carry a cutting tool for safety and convenience Which cutting tool is a bladed hook for cutting fishing line or net? correct answers z-knife I should wear at least my cutting tool ________ correct answers where either of my hands can reach it I need a dive gear bag to carry my equipment in a bag specifically designed to survive the stresses of diving. a. True b. False correct answers a. True When choosing a gear bag, I should choose one ________ for the gear I have. correct answers slightly larger than what I need Compass correct answers provides a navigational reference to help you follow a course and find your way back to your exit Thermometer correct answers help you determine how much exposure protection you need If I am using dive tables instead of a dive computer, I will need a dive timer and depth gauge. a. True b. False correct answers a. True It's a sunny day and I'm on a boat with no shade. It would be a good idea to cover my gear, including instruments, with a towel. a. True b. False correct answers a. True Snorkel Clearing correct answers blow the water out forcefully, like using a pea-shooter (blast method) Popular dive environments include ________ correct answers coral reefs, temperate water oceans, lakes and reservoirs, rivers, springs, flooded quarries and human-made dive environments 15 a. True b. False correct answers a. True While planning a dive, my buddy (who is not an instructor) suggests that we dive significantly deeper than I have either training or experience with. My best response is to ________ correct answers politely say "no" and purpose a depth limit appropriate for my limits Those that sting and/or puncture make up the largest group, which include ________ correct answers jellyfish, portuguese man-o-war, lion fish and scorpion fish, stingrays, sea urchins, cone shells, fire coral and other hydroids, and sea nettles Aquatic organisms that bite include, but are not limited to ________ correct answers moray eels, trigger fish, crocodilians, some sharks (not all), barracuda and other fish, snakes (venomous bite), octopuses (a few species have a venomous bite), clawed lobsters/crab (pinchers, not a true bite) The type of interaction I should generally have with aquatic life is ________ correct answers passive Potentially hazardous aquatic animals are, broadly, those that ________ and those that ________ correct answers sting/puncture and bite Nearly all injuries from aquatic life result from ________ correct answers human carelessness I should be familiar with potentially hazardous organisms that may be in the local environment, where I would find them and how they could harm me. a. True b. False correct answers a. True I can learn more about handling aquatic life injuries (and other emergencies) in the PADI Rescue Diver and Emergency First Response Primary Care (CPR) and Secondary Care (First Aid) courses. a. True b. False correct answers a. True While underwater near a kelp forest, my buddy and I see a large shark approach. We should ________ correct answers remain calm, near the bottom and watch it Laws and regulations about aquatic life exist to preserve and protect organisms, and also for human safety. a. True b. False correct answers a. True One potential hazard of some plants and kelp is ________ correct answers entanglement 16 Project AWARE involves me and other divers as part of a movement to help keep our clean and full of healthy, abundant marine life. a. True b. False correct answers a. True When wading into water while shore diving, the general procedure is to put my fins on in water about knee deep, then walk backward until I can swim. a. True b. False correct answers b. False The general procedure is to wade until your BCD can support you - about chest deep - then put your fins on. ________ and ________ generally determine the best way to wade in and out or how soon I put my fins on. correct answers bottom composition and aquatic life When shore diving, I always have long surface swim before descending and after descending. a. True b. False correct answers b. False How far you swim before descending and/or after descending varies with the dive site Surge correct answers Back-and-forth motion caused by waves passing overhead. The bigger the waves, the stronger the surge and the deeper it affects you. Rip currents correct answers result when waves push water over a long obstruction (such as a reef or sandbar) Upwelling correct answers wind blowing from shore can push surface water away, causing cooler, deeper water to rise toward the surface to replace it Tides correct answers result from the moon and sun's gravity pulling on the water of the oceans My buddy and I are assessing conditions for a shore dive. The waves are breaking when they are about 1 meter/3 feet tall. About how deep is the water where they break? correct answers 1 meter/ 3 feet Diving in moderate to large surf requires special training. Diving in large and rough surf can be hazardous. a. True b. False correct answers a. True My buddy and I experience mild surge after entering the water. We may be able to adjust for this by diving ________ correct answers deeper While assessing conditions, my buddy and I note that there are waves approaching shore from an angle. Our dive plan should account for having ________ correct answers a current that moves us parallel to shore 17 By accident, I find myself in a strong current rushing rapidly away from shore. Generally, I should inflate my BCD and swim ________ correct answers parallel to shore The wind has been blowing from shore for several days. During a dive, it is likely I will find ________ water. correct answers cooler, deeper Tides affect conditions related to diving including ________ correct answers currents, depth and visibility When entering through mild surf, as a wave approaches I should stand ________ correct answers sideways to it The Bow correct answers The front of the boat. "Forward" means toward the bow. The Stern correct answers The back of the boat. "Aft" means toward the stern. Port correct answers The left side of the boat as you face forward Starboard correct answers The right side of the boat as you face forward Leeward correct answers The side away from the wind Windward correct answers The side toward the wind The bridge (wheelhouse) correct answers The portion of the boat where the controls are; often elevated for visibility. Head correct answers The boat's toilet facilities or the boat's commode specifically. Galley correct answers The boat's kitchen/cooking area (in some areas, most larger dive boats have gales; in others, few do) Swim step correct answers A platform on the stern that is close to water level. You commonly enter and exit the water there. While packing my gear bag for the boat dive, I want to pack it so ________ correct answers what I need first is on top It is recommended that I avoid excessive alcohol the night before a dive, or before any day of diving. a. True b. False correct answers a. True While on a boat, I begin to feel seasick, but I don't feel like I am going to be sick. The best place to go is ________ correct answers into fresh air, close to the water level in the center of the boat 20 After establishing buoyancy for both of us, the primary concerns with an unresponsive diver at the surface are ________ and ________ correct answers checking for breathing, providing rescue breaths if needed My buddy doesn't move while floating at the surface, so I tap my buddy's shoulder. My buddy signals "okay." I should disregard this signal and assume my buddy is unresponsive. a. True b. False correct answers b. False A diver who responds to communication is not unresponsive When assisting an unresponsive diver at the surface, if I find the victim isn't breathing, I should ________ correct answers provide rescue breaths To prevent and control underwater problems, I should ________ correct answers relax while I dive, plan my air use, dive within my limits While diving, I begin to feel air-starved because I have been swimming hard. I should ________ correct answers signal "stop" and rest To breathe from a free flowing regulator, I should hold the second stage ________ correct answers with the mouthpiece pressed against my lips If I were to become entangled underwater, I should ________ correct answers stop, think and work to free myself During a dive, I find I am running low on air sooner than expected. My buddy and I are still several minutes from our planned point, but I am almost at reserve pressure. We should ________ correct answers ascend immediately where we are Although it shouldn't have happened, on a dive I fail to watch my SPG and run out of air. I don't have a pony bottle or self-contained ascent bottle. My buddy is close at hand - less than two seconds away, and has an alternate second stage. My best option is probably to ________ correct answers ascend using an alternate air source If I am bringing an unresponsive diver to the surface and the victim becomes too buoyant to control, I should stay with the victim even if our ascent is too fast. a. True b. False correct answers b. False You should let the victim go, complete your ascent at the safe rate, and resume the rescue at the surface A diver who is or was unresponsive may have which of the following signs and symptoms? correct answers difficulty breathing, unconsciousness, cardiac and respiratory arrest, chest pain 21 My first priority when assisting someone who is or was unresponsive is to contact emergency medical care and to ________ correct answers be sure the person is breathing A diver who was unresponsive is breathing. Nonetheless, I should check breathing frequently while waiting for emergency medical care. a. True b. False correct answers a. True A diver who was unresponsive underwater has become fully responsive, is fully alert and shows no apparent further problems. The diver still requires medical examination. a. True b. False correct answers a. True At a minimum, I should have ________ visual and ________ audible surface signaling devices. correct answers 1, 1 The visual signaling device that I might use to signal an aircraft is ________ correct answers signal mirror Alpha flag correct answers blue-white pennant, and indicates that the vessel flying it has divers in the water and can't maneuver Traditional dive flag correct answers Red rectangle with a white diagonal stripe. Indicates there are divers below and boats should keep clear. One possible use for a surface float is to use it to assist another diver. a. True b. False correct answers a. True My buddy and I are using a surface float. We should carry the line with which we will tow it ________ correct answers attached to a line caddy or reel If there are no specific laws, the rule of thumb is that I should stay within ________ of my dive flag. correct answers 15 meters/ 50 feet For an Underwater Naturalist dive, I want to carry several small slates and some measuring tools. A mesh utility bag may be an appropriate way to do this. a. True b. False correct answers a. True Mesh bags range in size and options. I would probably choose a larger one for carrying a wet exposure suit. a. True b. False correct answers a. True 22 During an underwater cleanup, my buddy and I fill a large mesh utility bag with several kilograms/pounds of garbage. We should ________ correct answers carry the bag in our hands What are the reasons why someone would carry a slate or a wet book? correct answers communication, noting limits and backup information, recording information, the unexpected When choosing a slate, the main option I usually consider is ________ correct answers size One use of a dive light is to look into holes and cracks where shy organisms may hide during the day. a. True b. False correct answers a. True Wide beam lights tend to be ________ dive lights. correct answers larger It is recommended that at a minimum, for each dive you log ________ correct answers date, dive site (name or location), dive buddy, dive depth and duration, objective/description Dive planning software can help me estimate and plan ________ correct answers my air use, computer dive time I can choose from very basic software intended only for planning recreational dives, as well as software designed for much more complex diving. a. True b. False correct answers a. True Spare parts kit correct answers collection of user-replaceable items in a compact, sturdy box (or other suitable container) Typical space parts kits might have ________ correct answers spare mask strap, fin strap and snorkel keeper, harness/weight belt buckle, cable ties, adjustable wrench, pliers, screw driver, regulator mouthpiece, accessory clip, slate/wet book pencil, various sized cylinder valve/DIN valve o-rings Diving can be physically demanding, so I should be in good health and reasonably fit. a. True b. False correct answers a. True It is recommended that I have a complete physical examination when I start diving and regularly thereafter. a. True b. False correct answers a. True Factors that can strain my heart in diving include ________ correct answers swimming hard, carrying equipment, climbing a ladder, heat stress 25 Because dive computers and tables cannot account for individual variation, I should dive well within limits and ________ correct answers ascend slowly A no stop dive means I can, if necessary, ascend directly to the surface without stopping ________ the dive correct answers at any time during A no stop limit is the maximum time I can spend at a given depth and still ascend directly to the surface. a. True b. False correct answers a. True If I stay longer than a no stop limit, I must ________ correct answers make an emergency decompression stop If I am planning a dive to 18 meters/60 feet, my no stop limits will be ________ than my no stop limits for a dive to 12meters/40 feet correct answers shorter While at 18 meters/60 feet, my computer says I have 40 minutes no stop time remaining. My buddy and I ascend to 10 meters/30 feet. Our computers will show our no stop time is ________ correct answers longer Ascending faster than the required ascent rate of my computer or table may increase my risk of DCS. a. True b. False correct answers a. True If i were to skip ________ stop, I would surface outside model limits and have a high risk of decompression sickness. correct answers an emergency decompression Nitrogen left in your body after a dive is ________ correct answers residual nitrogen A dive made while you still have residual nitrogen is ________ correct answers repetitive dive Time you spend at the surface between two dives is ________ correct answers surface interval A repetitive dive is a dive made while I still have theoretical residual nitrogen in my body. a. True b. False correct answers a. True On a repetitive dive, for a known depth my no stop limits will be ________ those of the first dive correct answers shorter than After a surface interval, the nitrogen dissolved in my body will ________ correct answers decline My dive computer only calculates while I am underwater. It doesn't do anything between dives. 26 a. True b. False correct answers b. False your dive computer continues to calculate until your theoretical nitrogen levels return to normal I must use the same dive computer the entire day of diving, on all dives, and not share it with another diver. a. True b. False correct answers a. True Dive tables like the RDP and eRDPml use ________ tables to calculate repetitive dives correct answers 3 The four advantages that made dive computers far more popular are ________ correct answers easier to use than tables, help offset human error, give you more time underwater, have other features to record your dive Practically all dive computers provide this information before, during and/or between dives ________ correct answers no stop (no decompression) limits, depth, elapsed time, no stop time remaining, ascent rate, emergency decompression, previous dive information The first step in setting up my dive computer is to ________ correct answers read the manufacturer instructions During a dive with my dive computer, my buddy and I will turn the dive based on the first limit we reach: remaining no stop time or air supply turn point. a. True b. False correct answers a. True The six guidelines when diving with a computer are ________ correct answers dive the plan, stay well within your computer's limits, follow the most conservative computer-yours or a buddy's, watch your SPG, start at your deepest point and go shallower, ascend slowly well within your computers ascent rate During a dive, my dive computer allows more dive time than my buddy and I planned for a given depth. We have plenty of air, so it's okay to stay longer or go deeper than we planned. a. True b. False correct answers b. False don't exceed your planned depth or time just because your computer will let you During a dive, my dive computer fails and I'm not using a backup. I should ________ correct answers ascent, make a safety stop and end the dive Are divers a significant threat to the overall health of the underwater environment? correct answers no 27 One reason it is important to apply environmentally friendly dive skills is to preserve the natural beauty for other divers. a. True b. False correct answers a. True My influence as a diver and ambassador for the underwater world allows me to be part of the solution to the problems the world's aquatic ecosystems face. a. True b. False correct answers a. True I would find a minimum surface interval when, after a dive, I want to know how long the ________ would be correct answers time at the surface One way to find the minimum surface interval with a computer is to periodically check the no stop times for the depth you want, between dives. a. True b. False correct answers a. True I can use the RDP Table or eRDPml to find the exact time my dive computer requires a minimum surface interval. a. True b. False correct answers b. False The RDP Table or eRDPml will give you a useful estimate of your computer's minimum surface interval, but it will probably not be exactly the same Going to altitude after diving may be a problem because the ________ correct answers lower pressure can increase DCS risk The difference between flying after diving and altitude diving is that when flying after diving, I go to altitude after a dive, and in altitude diving, I begin and end a dive at altitude. a. True b. False correct answers a. True My buddy and I have made two no stop dives a day for the last two days. Based on current recommendations, we should wait at least ________ after our last dive before flying. correct answers 18 hours Flying after diving recommendations may change over time, so I should check online and print sources to keep up with and follow the most current ones. a. True b. False correct answers a. True When diving at an altitude of ________ or higher, I need to use altitude diving procedures. correct answers 300 meters/1000 feet 30 As I descend, I need to equalize air spaces. Two accepted ways of equalizing my ears are ________ correct answers block my nose and attempt to gently blow through it, swallow and wiggle the jaw from side to side 31 PADI Open Water Diver Exam Questions and Answers 2024