Naui Scuba Diving open water QUESTIONS & ANSWERS, Exams of Sport Studies

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Naui Scuba Diving open water QUESTIONS & ANSWERS Which of the following physical factors can make you incapable of sustaining the efforts sometimes demanded when participating in recreational diving? - ANSWER All of the above Physical fitness is an important consideration for scuba divers because it helps prevent diving accidents due to - ANSWER Exhaustion Your entry-level Naui scuba diver certification is a license to - ANSWER learn Completeing this entry level scuba certification course makes you knowledgeable and skillful enough to dive safely in or at - ANSWER open water with conditions similar to those in which you were trained when buying or renting equipment for diving the most important consideration is - ANSWER its fit on your body when selecting a face mask the most important thing to consider is - ANSWER Proper seal and fit Factors that can affect the breathing ease of a snorkel are - ANSWER Both a and B Diving equipment should be - ANSWER rinsed thoroughly, dried and stored in a cool place Open heel fins are usually the fins of choice for scuba divers because - ANSWER they may be used in a wide variety of environmental conditions Snorkels over 15 inches in length are not recommended primarly because - ANSWER they have too much dead air space Scuba tanks should always have some pressure in them to prevent - ANSWER moisture from entering True/False Hydrostatic and visual inspection standards are different around the world. Consult your local facility to learn about the regulation in your area - ANSWER true the most important feature of weight belt is - ANSWER quick release A __ compensates for the compression of wetsuits as you descend underwater - ANSWER compensating weight belt weighting systems ar eused by the diver primarly to - ANSWER offset the positvie bouyancy created by the wet suit you should record all dives in your logbook because - ANSWER all of the above when you fly a dive flag, you must - ANSWER all of the above An additonal accessory that will be useful to you is - ANSWER all of the above the dive knife is used primarly as a __ for digging, cutting, pounding,and prying - ANSWER tool two recommended methods of clearing your snorkel are the blast and the __ clear - ANSWER Displacement To prevent losing oyur balance when donning fins, you can - ANSWER all of the above the _ clear of your snorkel requires the least amount of energy - ANSWER displacement if you must walk in fins you must walk - ANSWER backwards You should rinse your BC internally because __ inside your BC can cause damage - ANSWER All of the above if during a dive you an dyour budy become seperated, you should - ANSWER spend no more than one minute looking then surface if you are diving wearing an exposure suit, you should _ to safely control bouyancy as you descend - ANSWER add air to yuor buoyancy device what type of pressure is defined as gauge (water) pressure plus atmospheric (air ) pressure - ANSWER absolute which gas law best explains diving medical problems such as ear and sinus squeeze - ANSWER boyles law the absolute pressure in the ocean at 16 meters (53 feet) is - ANSWER 2.6 atm absolute if a divers surface air consumption rate is 1.72 bar (25 psi) per minute what would be the cinsumption rate at 20 meters (66 ft) of seawater - ANSWER 5.16 bar per min 75 psi per min Atmopsheric pressure at sea level is - ANSWER 1.0 bar/ 14.7 pounds per inch/ 1.0 atm absolute sea water weighs _ kilograms per liter or _ pounds per cubic foot - ANSWER 1.025/64.0 in the ocean a sealed balloon filled with air that has a volume of _ 10 m ( 33ft) - ANSWER 196 cubic centimeters (12 cubic inches) two methods of measuring air pressure are BAR or - ANSWER pounds per square inch A depth that is equivalent to one atmosphere in the ocean is equal to _________ feet in sea water and _________ feet in fresh water. - ANSWER 10 m 33 ft and 10.4 m 34 ft a diver with blood and mucus in his/her mask upon surfacing will most likely have - ANSWER sinus squeeze pressure in the middle ear is equalized through a part of th ebody called the - ANSWER eustachian tube a divers inability to equalize his/her ears ascent could cause - ANSWER a block or reverse block to prevent air embolism a diver should - ANSWER Breathe normally at all times during ascent and never hold his/her breath An irregular breathing pattern (skip breathing) while diving will possibly cause: - ANSWER carbon dioxide excess a regular breathing pattern while diving would be - ANSWER slightly slower and deeper than you normally breathe the three general types of injury resulting form lung overexpansion are air embolism, pneumothorax and - ANSWER tissue emphysema Symptoms of nitrogen narcosis are similar to - ANSWER alcohol intoxication when the pressure of nitrogren is balanced between the air and your body you are at a state of - ANSWER equilibrium if it is suspected that the air in a tank is contaminated due to its smell or taste - ANSWER do not use the tank and immediately call the dive shop that filled the tank so the can investiage the problem If your dive buddy complains to you about having aching pain in his/her shoulder one hour after the dive, you might suspect: - ANSWER decompression sickness a symptom of carbon monoxide poisoning is often - ANSWER headache breathing dry air a scuba diver tends to become dehydrated while diving due to - ANSWER moisturizing dry inhaled air if th etemperature surrounding a rigid container full of gas increases the pressure of the gas increases - ANSWER true you can prevent a mask from fogging under water by lowering the _ of the water - ANSWER surface tension the amount of water vapor in the air is known as - ANSWER humiditiy A naui open water scuba diver should not dive deeper than 18 meters (60 ft) - ANSWER true If you dive deeper than approximately 6 meters (20 feet) and then ascend, the pressure change might be sufficient for bubbles to form if you have absorbed enough nitrogen. - ANSWER true according to the naui dive tables dives to less than 6m (20ft) - ANSWER are considered as 6 m (20 foot dives) for optimum no decompression bottom times plan repetitive dives so that each successive dive is to depth - ANSWER a shallower the minimum surface interval recommended between two dives is - ANSWER 60 min a diver with a group letter F making a dive 60 ft has residual nitrogen time of - ANSWER 35 min According to NAUI, a repetitive dive is defined as more than one dive within a period of _________ hours. - ANSWER 24 the maximum dive time for a dive to 60 ft is _ min - ANSWER 50 when planning and executing a dive, it is important for diving buddies to - ANSWER agree on a dive leader A diver experiencing panic should: - ANSWER stop, rest and breathe slowly and deeply until you recover Continued loss of body heat in cold water will produce: - ANSWER all of the above which of the following will help prevent seasickness - ANSWER settle yourself in a midway point of the boat to relieve a cramp in the calf - ANSWER Bend the toe of the fin toward the knee to stretch the muscle most diving problems occur - ANSWER at the surface whenever possible it is best to talk to a distressed diver through solving their own minor difficulites - ANSWER true which of the following most readily provides assistance to a diver - ANSWER diving buddy ___ is a worldwide emergency network of hyperbaric chambers and diving physcians - ANSWER DAN Divers alert network Four main actions you should consider in giving first aid for diving accidents are: - ANSWER maintain basic life support, call for help, treat for shock , deliver 100 oxygen Appropriate first aid measures for DCS should include - ANSWER lie victim down maintain circulation and respiration administer 02 if qualified which of the following is an example of a man made site - ANSWER breakwater if you recieve your entry level training in a tropical environment and then move to a northern.... - ANSWER contact an active, preferably naui dive master or instructor to orient you to the new locale which of the following is an example of overhead environment - ANSWER ice which of the following is an example of natural site - ANSWER coral reef which of the following affect visibility - ANSWER all of the above a thermocline is a thin zone of radical change in water - ANSWER temperature which of the following is the point at which a sudden change in awater temp occurs - ANSWER thermocline a _ plan is written plan of your desitnation and your expected time of return that is left with someone on shore... - ANSWER float if you are careless about your bouyancy control you can break off pieces of coral or rub off its protective coating - ANSWER true almost all injuries from aquatic life are caused by _____ action on the part of the animal. - ANSWER defensive there are many oppurtunities to work as a diving professional - ANSWER true Newly certified divers who desire additional training and an orientation to a variety of diving sites and conditions should take a NAUI _____. - ANSWER advanced scuba diver course which of the followiing are naui sanctioned specialty courses - ANSWER all of the above local dive clubs are an excellent way to - ANSWER all of the above