SDI Scuba Certification Exam Questions with Correct Solutions || Graded A+ UPDATED

SDI Scuba Certification Exam Questions with Correct Solutions || Graded A+ UPDATED 5 ways to equalize your ears - ANSWER 1. Valsalva maneuver really "Toynbee" -holy you nose and blow gently -only on descent 2. juttin jaw 3. yawning method 4. swallowing method 5. tilting the head majority equalize better feet first. (ropers) some or slopers, some are ropers. Squeeze - ANSWER -happens on descent -stop your descent and ascend slightly -try to equalize again Reverse Block or Block - ANSWER -happens on ascent -stop your progress and descend slightly -try to equalize again and pray Earplugs and Goggles - ANSWER -Some vented earplugs maybe used for Scuba -Non-vented earplugs are very dangerous for Scuba -A mask covers the nose and enables you to equalize ears, goggles do not. Goggles are very dangerous for Scuba. Prearranged lost buddy plan - ANSWER ... Stimulus to breathe - ANSWER -high levels of carbon dioxide Surge vs. Swell - ANSWER -surge is back and forth -swell is up and down Six rules of Diving - ANSWER 1. Clear your ears early and often 2. When the regulator is out of your mouth, exhale tiny bubbles. 3. When the regulator is in your mouth, continuously breath. Or 4. Exhale on emergency swim ascent 5. While ascending, stay below your tiniest bubble 6. Scuba diving should be a no pain sport Certified Scuba Diver - ANSWER Should only fill cylinders, rent, and let themselves and other certified Scuba Diver use Regulators and Buoyancy Compensators -Recommended Maxiumum depth is 60 fee for NAUI Scuba Diver -Recommended Maximum depth is 80 feet for NAUI Advanced Diver with a limited of 130 feet -NAUI Advanced course is designed primarily for newly certified NAUI SCUBA Divers Overexpansion injuries can be prevented by: - ANSWER All answers correct: -Never holding your breath while diving -Dive with a properly maintained high-quality Total Diving System -Learning the correct breathing patterns reinforced in classroom, pool, and open water training The most serious lung overexpansion injury is: - ANSWER arterial gas embolism In air at 1 ata, the partial pressure of nitrogen is___, oxygen is_____. - ANSWER 0.79/0.21 oxygen Medial emphysema and pneumothorax - ANSWER Which of the following overexpansion injuries can be characterized by chest pain, breathing difficulties, weakness, and cyanosis (blueness) of the lips and nail beds: Other symptoms of decompression sickness include: - ANSWER all answers correct: -numbness -itchy skin -paralysis and loss of manual dexerity Diving at altitude or flying after diving: - ANSWER Requires special diving computer functions, altitude tables and/or refraining from flying from at least 24 hours after the completion of a dive Gas can enter the bloodstream and cause serious damage to the lungs or even death by: - ANSWER All answers are correct -Ascending too fast -Holding breath -Diving with respiratory congestion The only accepted treatment for Arterial Gas Embolism is: - ANSWER Stabilizing victim in nearest medical facility and transport to decompression chamber for decompression If you lose contact with your buddy, you should: - ANSWER Search for no more than a minute by turning 360 degrees and looking up and down and then perform a normal ascent to the surface The reciprocal azimuth for an initial azimuth of 60º is: - ANSWER 240 You should perform a safety stop at 15 feet for 3 to 5 minutes on every dive. - ANSWER True It is OK to share a computer with your dive buddy - ANSWER False The term repetitive dive is defined as: - ANSWER Any dive started more than 10 minutes and less than 12 hours after a previous scuba dive Which of the following steps should be taken in the selection of a dive site: - ANSWER All answers are correct *purpose of the dive *degree of difficulty presented by the site *Honest evaluation of your diving abilities and conditioning levels, as well as those of your buddy The most important reason for planning your dives and executing the dive per your plan is to: - ANSWER Prevent accidents A good diving buddy: - ANSWER Kerriana Two examples of hard corals are: - ANSWER elkhorn and staghorn Divers should avoid contact with all corals because: - ANSWER All answers are correct -can hurt -damage coral -damage equipment if a diver is injured by harmful sea life, it is usually because of: - ANSWER all answers are correct -negligence -ignorance -aggressive The most common injuries occur when - ANSWER An animal is surprised by a diver's actions and instinctively protects itself Two examples of soft corals are: - ANSWER Black and Red Coral Sharks respond aggressively to: - ANSWER The scent of blood in the water Coral reefs are formed by: - ANSWER Coral animals called polyps that form skeletal structures The ocean is an important source of life because: - ANSWER It is home to many of the first links in the Earth's food chain In an out-of-air emergency, your buddy is close enough, you should: - ANSWER swim to buddy, give out of air signal and share air A dependent action to take in response to an out of air emergency is: - ANSWER Sharing air using the primary second stage and using the alternate air source for yourself Signs of a panicked diver are: - ANSWER Wide-eyed, fearful look and a fast and erratic breathing pattern Panic can be prevented by: - ANSWER All correct: -Taking Specialty Training -Honestly evaluating your diving limitations -Properly maintaining your Total Diving System To achieve the SSI Advanced Open Water Diver rating, a diver is required to: - ANSWER Complete 4 Specialty Courses and log a total of 24 dives The first thing you should do if you observe signs of panic in a diver underwater is: - ANSWER locate your alternate air source in case it is needed To achieve the SSI Master Diver rating, a diver is required to: - ANSWER Be certified as an SSI Advanced Open Water Diver, complete the SSI Stress and Rescue Specialty Course, and log a total of 50 dives An independent action to take in response to an out of air emergency is: """"""" - ANSWER a controlled swimming ascent or emergency buoyancy ascent The most important rule when assisting a panicked diver is: - ANSWER Never needlessly endanger yourself In a deep water out of air emergency, and your buddy is not close enough, the best response to this emergency is to perform a Controlled Swimming Ascent: - ANSWER false To achieve the SSI Specialty Diver rating, a diver is required to: - ANSWER Complete any 2 Speciality courses AND Log a total of 12 dives Gauge pressure is defined as: - ANSWER absolute pressure minus 1 ATA One atmosphere of pressure is defined as: - ANSWER all correct: -1 ata -Each 34 feet of depth in freshwater -Each 33 feet of depth in sea water if a flexible air-filled container has a volume of 40 cu ft on the surface, what would the volume be at 99 feet in sea water? (rounded off) - ANSWER 10 cu ft Salt water weighs ___ pounds per cubic foot and freshwater weighs ___ pounds per cubic foot. - ANSWER 64/62.5 If you experience pain in your ears during descent: - ANSWER stop the decend and asend until pain stops The greatest relative pressure change in sea water takes place between ____ and ____ feet. - ANSWER 0/33 Which of the statements concerning sound transmission underwater is correct? - ANSWER all answers are correct Sound will travel farther underwater than in the air, Divers find it difficult to locate the direction of a sound producing source. Describing diving with the acronym SCUBA came from what event? - ANSWER the development and demand for a regulator in 1943 Which of the following factors affect a diver's air consumption rate? - ANSWER all answers are correct One of the primary factors contributing to heat loss for divers is: - ANSWER convection Under the SSI Equipment Service Program, your Delivery System should be serviced and performance checked: - ANSWER every year During normal diving activities, divers should never exceed an ascent rate of __ feet per minute. - ANSWER 30 The SSI Equipment Service Program is designed to: - ANSWER Keep all of the components of the total diving system to optimal performance Which of the following Total Diving System subsystems best describes the SCUBA unit? - ANSWER the delivery system The purpose of a BC is to: - ANSWER All answers are correct -Provide surface floatation -Maintain neutral buoyancy during the dive -Control ascent and descent rates The Information System components are: - ANSWER Dive Computer, Analogue Instruments, if the Dive Computer does not supply all necessary information and SSI Total DiveLog The three Basic Rules of Scuba stated in the proper order of importance are: - ANSWER Breathe continuously, ascend slowly and maintain control, and never dive alone or beyond your level of training The Buoyancy Control System components are: - ANSWER Buoyancy compensator, inflation device, and weight belt or BC weight pockets The SSI Equipment Service Program is designed to: - ANSWER Keep all the components of the Total Diving System to optimal performance Assuming a consistent air consumption rate, diving at a pressure of 4 ata will use __ as much air as diving at 2 ata. - ANSWER 2 times A high pressure scuba cylinder should be stored: - ANSWER Secured and with a minimum of 500 to 750 psi the most efficient breathing pattern for scuba diving is: - ANSWER a deep balanced inhalation followed by a long balanced exhalation without any pause between inhaling & exhaling an object immersed in water will be buoyed upward by a force ___ the weight of the water it displaced - ANSWER equal to The three primary features to look for in a quality Exposure System are: - ANSWER Thickness, fit and seam integrity. The Delivery System components are: - ANSWER A regulator, alternate air source, and a high pressure scuba cylinder Which of the following factors affect a diver's air consumption rate? - ANSWER Extreme exertion from working heavily Poor physical conditioning Extreme stress brought on by improper response to anxietyproducing situations The major, and most common, symptom of decompression sickness is: - ANSWER Joint pain Swelling in the neck area with a crackling sensation upon touching the swollen area? - ANSWER Subcutaneous emphysema Use of the SSI Total DiveLog is important because. - ANSWER It's a good resource for future dives, it contains medical history and emergency information, and it keeps an accurate record of your personal information and dives. Surface interval - ANSWER The amount of the time the diver stays out of the water or on the surface between dives. SSI Responsible Diver Code states that you should... - ANSWER Be environmentally responsible on every dive, accept responsibility for your own well being on every dive, and dive within the limits of your training and ability. Proper equalization techniques must be learned in order to... - ANSWER Prevent ear pain, prevent squeeze injuries, prevent sinus squeeze