NAUI Scuba Diving Open Water Exam With 100% Correct Answers 2024, Exams of Advanced Education

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NAUI Scuba Diving Open Water Exam

With 100% Correct Answers 2024

Which of the following physical factors can make you incapable of sustaining the efforts sometimes demanded when participating in recreational diving? - Correct Answer-All of the above Physical fitness is an important consideration for scuba divers because it helps prevent diving accidents due to - Correct Answer-Exhaustion Your entry-level Naui scuba diver certification is a license to

• Correct Answer-learn Completeing this entry level scuba certification course makes you knowledgeable and skillful enough to dive safely in or at - Correct 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 - Correct Answer-its fit on your body

when selecting a face mask the most important thing to consider is - Correct Answer-Proper seal and fit Factors that can affect the breathing ease of a snorkel are - Correct Answer-Both a and B Diving equipment should be - Correct Answer-rinsed thoroughly, dried and stored in a cool place Open heel fins are usually the fins of choice for scuba divers because - Correct Answer-they may be used in a wide variety of environmental conditions Snorkels over 15 inches in length are not recommended primarly because - Correct Answer-they have too much dead air space Scuba tanks should always have some pressure in them to prevent - Correct 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 - Correct Answer- true

Engraved marking on scuba tanks include - Correct Answer-date of the hydrostatic test. serial number, type of material two types of material that scuba tanks are made from are steel and - Correct Answer-aluminum The ____ line is the direction of travel line on the compass - Correct Answer-lubber you should have your regulator serviced by a certified repair technician - Correct Answer-as recommended by the manufacturer The stage of the regulator which reduces working tank pressure to intermediate pressure is: - Correct Answer-the first stage when rinsing a regulator it is best to - Correct Answer-leave the regulator attached to the tank or have the dust cap in place

A ___ calculates your remaining allowable bottom time while diving - Correct Answer-dive computer proper maintenance of instruments include - Correct Answer-all of the above a diving watch must be able to withstand pressure and measure - Correct Answer-elapsed time three main types of ___ are back flotation, jacket, and horse collar - Correct Answer-BCs Essential feautres found on all BCs are - Correct Answer-All of the above You should rinse your BC internally because __ inside your BC can cause damage - Correct Answer-All of the above the most important feature of weight belt is - Correct Answer-quick release A __ compensates for the compression of wetsuits as you descend underwater - Correct Answer-compensating weight belt

weighting systems ar eused by the diver primarly to - Correct Answer-offset the positvie bouyancy created by the wet suit you should record all dives in your logbook because - Correct Answer-all of the above when you fly a dive flag, you must - Correct Answer-all of the above An additonal accessory that will be useful to you is - Correct Answer-all of the above the dive knife is used primarly as a __ for digging, cutting, pounding,and prying - Correct Answer-tool two recommended methods of clearing your snorkel are the blast and the __ clear - Correct Answer-Displacement To prevent losing oyur balance when donning fins, you can - Correct Answer-all of the above

the _ clear of your snorkel requires the least amount of energy - Correct Answer-displacement if you must walk in fins you must walk - Correct Answer- backwards when donning a weight belt ensure that - Correct Answer-it is clear to be ditched if necessary a scuba cylinder valve is turned on when you rotate it in a clockwise direction - Correct Answer-false When you assemble your scuba unit the outlet from the cylinder valve should be pointing towards the divers head - Correct Answer-true you and your buddy should don your scuba units - Correct Answer-As a team the last thing to check before making a giant stride or any water entry is that - Correct Answer-area below is clear the objective of an entry is to - Correct Answer-enter the water with minimal effort

if the distance to th ewater is several feet, use the __ entry - Correct Answer-giant stride if you are able to sit at the edge of the water, use the __ entry

• Correct Answer-seated side if you are entering the water from a small boat, use the __ entry - Correct Answer-back roll when you clear water from your mask without a purge valve you tilt your head - Correct Answer-backward when you clear water from a mask with a purge valve, you tilt your head - Correct Answer-forward you should check your submerisble pressure gauge every __ minutes - Correct Answer- whenever the mouth peice of your regulator is out of your mouth you must continually exhale a small stream of bubbles - Correct Answer-true

you can clear your regulator second stage of water doing the __ or the __ clear - Correct Answer-blast, purge you should dive _ your buddy - Correct Answer-side-by side with if during a dive you an dyour budy become seperated, you should - Correct Answer-spend no more than one minute looking then surface if you wave to someone from the surface it is a sign of distress not a way to say hello - Correct Answer-true the naui diving hand signals are standard in the united stattes diving community and are usually recognized in other countries as well - Correct Answer-true when donning your cylinder at the surface and donning you cylinder underwater the primary difference is that you want to be - Correct Answer-positvely buyont at the surface and negatively buoyant at the bottom you may need to don or remove your equipment in the water if - Correct Answer-all of the above

examples of natural navigation aids divers may use during dives include - Correct Answer-all of the above a reciprocal course is made when your outbound course is a straight line and halfway through your dive you make a __ turn - Correct Answer- because of refraction objects underwater appear _ and _ when the diver is looking through their mask - Correct Answer-larger, closer the first color lost in the specturm upon descent during a dive is - Correct Answer-red a divers body heat is lost through conditions at a rate of approx _ times more rapidaly than air - Correct Answer- sound travels about _ times faster in water than in air - Correct Answer- if you are weighted to be neutral in salt water and you dive in freshwater with the same amount of weight you will float - Correct Answer-false

during descent a divers bouyancy tends to - Correct Answer- decrease your body weight does not affect your buoancy - Correct Answer-false if you are diving wearing an exposure suit, you should _ to safely control bouyancy as you descend - Correct Answer- add air to yuor buoyancy device what type of pressure is defined as gauge (water) pressure plus atmospheric (air ) pressure - Correct Answer-absolute which gas law best explains diving medical problems such as ear and sinus squeeze - Correct Answer-boyles law the absolute pressure in the ocean at 16 meters (53 feet) is - Correct 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 - Correct Answer-5.16 bar per min 75 psi per min

Atmopsheric pressure at sea level is - Correct Answer-1. bar/ 14.7 pounds per inch/ 1.0 atm absolute sea water weighs _ kilograms per liter or _ pounds per cubic foot - Correct Answer-1.025/64. in the ocean a sealed balloon filled with air that has a volume of _ 10 m ( 33ft) - Correct Answer-196 cubic centimeters ( cubic inches) two methods of measuring air pressure are BAR or - Correct 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. - Correct 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 - Correct Answer-sinus squeeze pressure in the middle ear is equalized through a part of th ebody called the - Correct Answer-eustachian tube

a divers inability to equalize his/her ears ascent could cause - Correct Answer-a block or reverse block to prevent air embolism a diver should - Correct 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: - Correct Answer-carbon dioxide excess a regular breathing pattern while diving would be - Correct Answer-slightly slower and deeper than you normally breathe the three general types of injury resulting form lung overexpansion are air embolism, pneumothorax and - Correct Answer-tissue emphysema Symptoms of nitrogen narcosis are similar to - Correct Answer-alcohol intoxication

when the pressure of nitrogren is balanced between the air and your body you are at a state of - Correct Answer- equilibrium if it is suspected that the air in a tank is contaminated due to its smell or taste - Correct 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: - Correct Answer-decompression sickness a symptom of carbon monoxide poisoning is often - Correct Answer-headache breathing dry air a scuba diver tends to become dehydrated while diving due to - Correct Answer-moisturizing dry inhaled air if th etemperature surrounding a rigid container full of gas increases the pressure of the gas increases - Correct Answer- true

you can prevent a mask from fogging under water by lowering the _ of the water - Correct Answer-surface tension the amount of water vapor in the air is known as - Correct Answer-humiditiy A naui open water scuba diver should not dive deeper than 18 meters (60 ft) - Correct 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. - Correct Answer-true according to the naui dive tables dives to less than 6m (20ft) - Correct 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 - Correct Answer-a shallower the minimum surface interval recommended between two dives is - Correct Answer-60 min

a diver with a group letter F making a dive 60 ft has residual nitrogen time of - Correct Answer-35 min According to NAUI, a repetitive dive is defined as more than one dive within a period of _________ hours. - Correct Answer- the maximum dive time for a dive to 60 ft is _ min - Correct Answer- your first dive is to 60 ft for 50 min you spend one hour and 40 min on the surface what is your adjusted maximum dive time at 60 ft - Correct Answer-4 min the minimum surface interval required to avoid ceompression after a dive to 88ft for 18 min followed by a dive to 78 ft for 23 min is - Correct Answer-4 hours 49 min it is advisable that a sport/recreational diver - Correct Answer-avoid the decompression dives for any given dive, you will use only one of the RGBM tables but it is essentialv that you be aware of and use the appropriate table - Correct Answer-true

the naui rgbm dive tables are for both air and nitrox and can be used for elevations up to 3048 m above sea level - Correct Answer-true specific rules for that particular table use are found on the back of each table - Correct Answer-true dive computers though expensive enhance divers safety by tracking their depth and time more accurately than can be achieved with dive tables - Correct Answer-true computers and dive tables will eliminate the risk of DCS - Correct Answer-false it is recommended that you not consume alcohol within _ hours of a planned dive - Correct Answer- immediately upon reaching the dive site you should - Correct Answer-observe conditions you should have a contingency plan for - Correct Answer- each step of your dive plan

which of the following limits should be established prior to every scuba dive - Correct Answer-max bottom time, max depth, minimum air pressure when planning and executing a dive, it is important for diving buddies to - Correct Answer-agree on a dive leader A diver experiencing panic should: - Correct Answer-stop, rest and breathe slowly and deeply until you recover Continued loss of body heat in cold water will produce: - Correct Answer-all of the above which of the following will help prevent seasickness - Correct Answer-settle yourself in a midway point of the boat to relieve a cramp in the calf - Correct Answer-Bend the toe of the fin toward the knee to stretch the muscle most diving problems occur - Correct Answer-at the surface whenever possible it is best to talk to a distressed diver through solving their own minor difficulites - Correct Answer-true

which of the following most readily provides assistance to a diver - Correct Answer-diving buddy ___ is a worldwide emergency network of hyperbaric chambers and diving physcians - Correct Answer-DAN Divers alert network Four main actions you should consider in giving first aid for diving accidents are: - Correct Answer-maintain basic life support, call for help, treat for shock , deliver 100 oxygen Appropriate first aid measures for DCS should include - Correct Answer-lie victim down maintain circulation and respiration administer 02 if qualified which of the following is an example of a man made site - Correct Answer-breakwater if you recieve your entry level training in a tropical environment and then move to a northern.... - Correct 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 - Correct Answer-ice which of the following is an example of natural site - Correct Answer-coral reef which of the following affect visibility - Correct Answer-all of the above a thermocline is a thin zone of radical change in water - Correct Answer-temperature which of the following is the point at which a sudden change in awater temp occurs - Correct Answer-thermocline a _ plan is written plan of your desitnation and your expected time of return that is left with someone on shore... - Correct Answer-float if you are careless about your bouyancy control you can break off pieces of coral or rub off its protective coating - Correct Answer-true

almost all injuries from aquatic life are caused by _____ action on the part of the animal. - Correct Answer-defensive there are many oppurtunities to work as a diving professional - Correct Answer-true Newly certified divers who desire additional training and an orientation to a variety of diving sites and conditions should take a NAUI _____. - Correct Answer-advanced scuba diver course which of the followiing are naui sanctioned specialty courses

• Correct Answer-all of the above local dive clubs are an excellent way to - Correct Answer-all of the above