Download Scuba Diving Safety and Techniques and more Exams Nursing in PDF only on Docsity! SSI Open Water Diver Written Exam with correct answers Proper equalization techniques must be learned in order to:A. Prevent squeeze injuriesB. Prevent ear painC. Prevent sinus squeezeD. All answers are correct - ANSWER: ➡ D. All answers are correct Which of the statements concerning sound transmission underwater is incorrect?A. Sound will travel farther underwater then in airB. Divers find it difficult to locate the direction of a sound producing sourceC. Divers find it easy to talk to each other directly through waterD. Sound travels four times faster underwater than in air - ANSWER: ➡ C. Divers find it easy to talk to each other directly through water Saltwater weighs ___ pounds per cubic foot and freshwater weighs ___pounds per cubic foot.A. 65/68B. 54/50C. 64/62.5D. They both weight the same - ANSWER: ➡ C. 64/62.5 Earplugs:A. Aid equalization of the middle of the earB. Should never be worn while divingC. Protect against coldD. Prevent ears from squeeze - ANSWER: ➡ B. Should never be worn while diving The condition in which certain colors are diminished as depth increases is called:A. AbsorptionB. RefractionC. TurbidityD. Diffusion - ANSWER: ➡ A. Absorption The first symptom of a sinus squeeze is usually:A. A dull pain deep within the headB. A sharp pain at the base of the neckC. A sharp pain or wedging sensation above the eyesD. A crushing pain high in the chest - ANSWER: ➡ C. A sharp pain or wedging sensation above the eyes Ear squeeze can be prevented by:A. RelaxingB. Never diving with a coldC. Rotating the jaw, swallowing, or ValsalvaD. All answers are correct - ANSWER: ➡ D. All answers are correct Sinus squeeze can be prevented by:A. Not diving with a coldB. Valsalva techniqueC. Wearing ear plugsD. Tilting the divers head back and forth - ANSWER: ➡ A. Not diving with a cold The purpose of equalization is to:A. Ensure the uneven application of pressure between the water and air spaces in the bodyB. Prevent water from entering air spaces in the body B. The snorkeling systemC. The buoyancy systemD. The delivery system - ANSWER: ➡ D. The delivery system During normal diving activities, divers should never exceed an ascent rate of __ feet per minute.A. 30B. 20C. 9D. 18 - ANSWER: ➡ A. 30 Under the SSI Equipment Service Program, your Delivery System should be serviced and performance checked:A. Every 5 yearsB. Every 3 yearsC. Every yearD. Every month - ANSWER: ➡ C. Every year The Delivery System components are:A. A regulator, alternate air source, and a high pressure scuba cylinderB. A regulator, buoyancy compensation device, and a high pressure air cylinderC. A regulator and high pressure air cylinderD. A regulator and an alternate air source - ANSWER: ➡ A. A regulator, alternate air source, and a high pressure scuba cylinder A scuba tank for recreational diving should be filled with:A. Pure, filtered compressed air or NitroxB. A mixture of helium and oxygenC. A mixture of hydrogen and oxygenD. Pure oxygen - ANSWER: ➡ A. Pure, filtered compressed air or Nitrox Which of the following factors affect a diver's air consumption rate?A. Extreme exertion from working heavilyB. Poor physical conditioningC. All answers are correctD. Extreme stress brought on by improper response to anxiety-producing situations- ANSWER: ➡ C. All answers are correct Assuming a consistent air consumption rate, diving at a pressure of 4 ata will use __ as much air as diving at 2 ata.A. 2 timesB. 4 timesC. 8 timesD. 5 times - ANSWER: ➡ A. 2 times The most efficient breathing pattern for scuba diving is:A. Short shallow breathsB. Long slow inhalation and faster exhalationC. Rapid inhalation and exhalation cyclesD. A deep balanced inhalation followed by a long balanced exhalation without any pause between inhaling and exhaling - ANSWER: ➡ D. A deep balanced inhalation followed by a long balanced exhalation without any pause between inhaling and exhaling The most serious lung overexpansion injury is:A. Arterial Gas EmbolismB. PneumothoraxC. Subcutaneous emphysemaD. Mediastinal emphysema - ANSWER: ➡ A. Arterial Gas Embolism The transfer of oxygen and nitrogen into the bloodstream occurs through the walls of the:A. Blood vesselsB. AlveoliC. Bronchiole treesD. Arteries - ANSWER: ➡ B. Alveoli The proper first aid for Arterial Gas embolism, Subcutaneous emphysema, Pneumothorax, and Mediastinal Emphysema is:A. Seek proper medical aid (a recompression chamber) as quickly as possibleB. Watch Vital signs, treat for shock and stand by to administer cardio-pulmonary resuscitation (if qualified)C. Administer oxygen (if qualified)D. All answers are correct - ANSWER: ➡ D. All answers are correct Overexpansion injuries can be prevented by:A. Dive with a properly maintained high-quality Total Diving SystemB. Learning the correct breathing patterns reinforced in classroom, pool, and open water trainingC. Never holding your breath while divingD. All answers are correct - ANSWER: ➡ D. All answers are correct If a flexible air-filled container at 100 feet of sea water has a volume of 10 cu ft, what would be the volume if it were transported to the surface?A. 15 cu ftB. 20 cu ftC. 40 cu ftD. 30 cu ft - ANSWER: ➡ C. 40 cu ft Which of the following overexpansion injuries can be characterized by chest pain, breathing difficulties, weakness, and cyanosis (blueness) of the lips and nail beds: D. The maximum surface interval allowed during a day's diving - ANSWER: ➡ B. The maximum allowed time at depth without having to perform a mandatory decompression stop during the ascent A good diving buddy:A. Is able to help in all phases of diving and dive planningB. Is as familiar with their buddy's diving equipment as they are with their ownC. Makes diving more funD. All Answers are correct - ANSWER: ➡ D. All Answers are correct Which of the following steps should be taken in the selection of a dive site:A. Degree of difficulty presented by the siteB. Purpose of diveC. Honest evaluation of your diving abilities and conditioning levels, as well as those of your buddyD. All Answers are correct - ANSWER: ➡ D. All Answers are correct The most important reason for planning your dives and executing the dive per yourplan is to:A. Prevent incidentsB. Ensure the proper amount of gas is usedC. Maintain the proper surface intervalD. Ensure the dive is enjoyable - ANSWER: ➡ A. Prevent incidents If you lose contact with your buddy, you should:A. Exit the water at a predetermined locationB. Surface immediatelyC. 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 D. Continue in the direction you were swimming for one minute then surface - ANSWER: ➡ C. 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 Rip currents are formed by:A. Water breaks over sand bars and reefs near the beach and recedes through channels or cuts in the bars and reefsB. WindC. Water breaks over rocks far away from shore and stays inside the tidal poolsHigh tide at full moon - ANSWER: ➡ A. Water breaks over sand bars and reefs near the beach and recedes through channels or cuts in the bars and reefs The term surface interval is defined as:A. The amount of nitrogen expelled while on the surfaceB. The amount of time spent on the surface of the water between divesC. The amount of time the diver stays out of the water or on surface between divesD. Travel time to and from dive site - ANSWER: ➡ C. The amount of time the diver stays out of the water or on surface between dives Dive computers are essential for planning and executing dives because they:A. Help divers stay within the no-decompression limitsB. Record all pertinent informationC. Monitors ascents and descentsD. All Answers are correct - ANSWER: ➡ D. All Answers are correct To use a compass to navigate to a sighted object:A. Point the lubber line toward the object and swimB. Point the witness marks toward the object and swimC. Point the magnetic needle toward the object and swimD. Point the compass toward the object, rotate the bezel until the witness marks are over the magnetic needle, and follow the lubber line - ANSWER: ➡ D. Point the compass toward the object, rotate the bezel until the witness marks are over the magnetic needle, and follow the lubber line Use of the SSI Total DiveLog is important because:A. It is an important information resource for future divesB. It keeps an accurate record of your personal information and divesC. It contains your medical history and provides important emergency informationD. All answers are correct - ANSWER: ➡ D. All answers are correct Residual nitrogen is defined as:A. 80% of the gas we breatheB. The amount of nitrogen dissolved in our blood stream and tissues at the beginning of the first dive of the dayC. The amount of excessive nitrogen dissolved in our blood stream and tissues at the beginning of the initial ascent to the surfaceD. The amount of excessive nitrogen dissolved in our blood stream and tissues after a dive - ANSWER: ➡ D. The amount of excessive nitrogen dissolved in our blood stream and tissues after a dive A dive computer keeps track of a diver's nitrogen absorption levels so that the diver can:A. Stay within the no-decompression limits on each diveB. Dive deeper than 30 metersC. Make decompression divesD. Avoid an Arterial Gas Embolism - ANSWER: ➡ A. Stay within the no-decompression limits on each dive The reciprocal azimuth for an initial azimuth of 60º is:A. 120ºB. 240ºC. 90º In a deep water out of air emergency, and your buddy is not close enough, the bestresponse to this emergency is to perform a Controlled Swimming Ascent:A. TrueB. False - ANSWER: ➡ B. False When diving in Marine Protected Areas like Marine Parks, divers should:A. Respect and follow the local Marine Park regulationsB. Follow the same diving practices as outside of the parksC. Only participate in guided divesD. Only collect marine life that is not protected by federal law - ANSWER: ➡ A. Respect and follow the local Marine Park regulations Coral reefs are formed by:A. A group of animals knowns as echinodermsB. Christmas tree tubeworms that form limestone base for coral to growC. Limestone deposits that build up over millions of yearsD. Coral animals called polyps that form skeletal structures - ANSWER: ➡ D. Coralanimals called polyps that form skeletal structures Divers can help protect the marine environment by:A. Keep equipment secured and no danglingB. Always be a responsible diverC. Maintaining neutral buoyancy at all timesD. All Answers are correct - ANSWER: ➡ D. All Answers are correct Two examples of soft corals are:A. Sean Fan and BrainB. Elkhorn and StaghornC. Black and Red CoralD. All answers are correct - ANSWER: ➡ C. Black and Red Coral The ocean is an important source of life because:A. It is home to many of the first links in the Earth's food chainB. It provides humans with rain water to drinkC. It covers so much of the earth's surfaceD. It provides an endless supply of seafood - ANSWER: ➡ A. It is home to many of the first links in the Earth's food chain More than ___ of Earth's oxygen is produced by marine plants.A. 50%B. 72%C. 85%D. 66% - ANSWER: ➡ C. 85% Water comprises about ___ of the Earth's surface.A. 72%B. 85%C. 50%D. 66% - ANSWER: ➡ A. 72% Two examples of hard corals are:A. Fire and StarB. Elkhorn and StaghornC. Sean Fan and BrainD. All answers are correct - ANSWER: ➡ B. Elkhorn and Staghorn Causes of panic include:A. Diving outside a diver's comfort and abilityB. Certain environmental conditions C. Using equipment that is unfamiliar or does not fit wellD. All answers are correct - ANSWER: ➡ D. All answers are correct Panic can be prevented by:A. Taking specialty trainingB. Properly maintaining your total diving systemC. Honestly evaluating your diving limitationsD. All answers are correct - ANSWER: ➡ D. All answers are correct The first thing you should do if you observe signs of panic in a diver at the surface is:A. Call for helpB. Completely fill your BC and instruct the panicked diver to establish positive buoyancyC. Swim to the panicked diver and drop the diver's weight beltD. Drop your weight belt - ANSWER: ➡ B. Completely fill your BC and instruct the panicked diver to establish positive buoyancy A dependent action to take in response to an out of air emergency is:A. A controlled swimming ascentB. An emergency buoyant ascentC. Sharing air using the primary second stage and using the alternate air source for yourselfD. All answers are correct - ANSWER: ➡ C. Sharing air using the primary second stage and using the alternate air source for yourself The first thing you should do if you observe signs of panic in a diver underwater is:A. Surface and call for helpB. Back off and assess the situationC. Locate your alternate air source in case it is needed Which of the following factors affect a diver's air consumption rate?A. Extreme stress brought on by improper response to anxiety-producing situationsB. Extreme exertion from working heavilyC. Poor physical conditioningD. All answers are correct - ANSWER: ➡ D. All answers are correct The Buoyancy Control System components are:A. Buoyancy compensator and inflation deviceB. Regulator, inflation device, and weight belt or BC weight pocketsC. Buoyancy compensator, exposure suit, and inflation deviceD. Buoyancy compensator, inflation device, and weight belt or BC weight pockets - ANSWER: ➡ D. Buoyancy compensator, inflation device, and weight belt or BC weight pockets A scuba cylinder must be hydrostatically tested:A. Never, no test is requiredB. Within fixed intervals set by local lawC. A minimum of once a yearD. After 100 dives - ANSWER: ➡ B. Within fixed intervals set by local law The term gradient can be described as:A. The total pressure of all gasesB. Total tissue saturationC. As always zero when the diver is super-saturatedD. The difference between the internal partial pressure and the external partial pressure of a gas - ANSWER: ➡ D. The difference between the internal partial pressure and the external partial pressure of a gas To achieve the SSI Specialty Diver rating, a diver is required to:A. Complete any 2 Specialty courses and log a total of 12 dives B. Complete any 2 Specialty CoursesC. Log a total of 15 divesD. Complete 1 Specialty Course and log 6 dives beyond Open Water - ANSWER: ➡ A. Complete any 2 Specialty courses and log a total of 12 dives To achieve the SSI Advanced Open Water Diver rating, a diver is required to:A. Complete 4 Specialty CoursesB. Complete 4 Specialty Courses and log a total of 24 divesC. Log an additional 5 dives beyond Open Water Certification under the supervision of an SSI Dive ProfessionalD. All answers are correct - ANSWER: ➡ B. Complete 4 Specialty Courses and log a total of 24 dives To achieve the SSI Master Diver rating, a diver is required to:A. Be certified as an SSI Advanced Open Water Diver, complete any 2 additional Specialty Courses, and log a total of 50 divesB. Be certified as an SSI Advanced Open Water Diver, complete the SSI Stress and Rescue Specialty Course, and log a total of 50 divesC. Be certified as an SSI Advanced Open Water Diver and log a total of 50 divesD. Be certified as an SSI Advanced Open Water Diver and complete any 2 additional Specialty Courses - ANSWER: ➡ B. Be certified as an SSI Advanced Open Water Diver, complete the SSI Stress and Rescue Specialty Course, and log atotal of 50 dives