Answer: Jacques-Yves Cousteau and Émile Gagnan
Although various other diving apparatus existed before the aqualung, this was the first self-contained, self-regulating unit on the market.
From Quiz: 10 simple questions about Scuba diving
Answer: Little Cayman Island
One of three Cayman Islands: Grand Cayman, Little Cayman and Cayman Brac. Little Cayman is definitely the smallest with only about 100 permanent residents at any time.
From Quiz: SCUBA Destinations
Answer: Self Contained Underwater Breathing Apparatus
Although Jacques Cousteau invented the aqualung in 1943, the first true self-contained underwater breathing unit was developed in 1877 by Henry Fleuss. It was a far cry from the diving gear in use today, though.
From Quiz: SCUBA Duba Do
Answer: Self Contained Underwater Breathing Apparatus
Back in the 40's and 50's this came around to help us discover our underwater world.
From Quiz: Scuba Diving
Answer: Marshall Islands
The Marshall Islands contain 5 single islands and 29 atolls. Bikini Atoll was opened to the public in 1996.
From Quiz: SCUBA Destinations
Answer: Barotrauma
Any injury or condition relating to or caused by variations in pressure is known as a barotrauma, from "baro", meaning pressure, and "trauma", meaning injury. The Bends (which is the same as Decompression Sickness) is just one type of barotrauma. Rapture of the Deep, otherwise known as Nitrogen Narcosis, is just one more.
From Quiz: SCUBA Duba Do
Answer: Sinuses, ears, mask
The tiny air spaces in your ears and sinuses are affected along with the air pocket from your mask. Equalize early and often.
From Quiz: Scuba Diving
Answer: Open Water Diver
After the Open Water Diver Course is it is strongly recommended to continue your diving education with the Advanced Diver course and then the Rescue Diver course to develop your diving abilities and experience for increased safety and enjoyment. SCUBA diver is a beginner certification with reduced time commitment that does not qualify the holder for independent diving; it is similar to a learner's permit on the road.
From Quiz: 10 simple questions about Scuba diving
Answer: Belize
The Blue Hole is not for the weak hearted. The entrance is at about 110 feet deep; deeper than recommended for the recreational diver. Belize also has the second longest barrier reef in the world, only behind the Great Barrier Reef in Australia.
From Quiz: SCUBA Destinations
Answer: Aluminum and steel
These two metals are strong enough to contain the air pressure at high PSI inside rather than rupture and explode.
From Quiz: Scuba Diving
Answer: 130ft (40 m)
Although it is possible to dive deeper on compressed air it is strongly recommended not to do so as the risks increase exponentially with depth.
From Quiz: 10 simple questions about Scuba diving
Answer: 2nd Stage
The 1st stage of your regulator attaches directly to your tank and reduces the pressurized air to a level that can be transferred to the 2nd stage. The 2nd stage is located directly off of the mouth piece and further reduces the air pressure to an amount that is breathable by the diver.
From Quiz: SCUBA Diving 101
Answer: Galapagos Islands
The Galapagos is ranked among the best in the world when it comes to big animal diving. The schools of hammerhead sharks gather in the hundreds at times.
From Quiz: SCUBA Destinations
Answer: Your bubbles
Ascending too fast is a definite danger for SCUBA divers. If you ascend too fast, the air in your lungs and other air spaces can expand too rapidly and cause damage. As a general rule of thumb, you'll be okay if you make sure that the bubbles from your exhalations are rising faster or at least as fast as you.
From Quiz: SCUBA Duba Do
Answer: Second Stage
First stage hooks to your tank, purge valve helps clear water out of the hose, and the hose of course, carries your air.
From Quiz: Scuba Diving
Answer: Decompression sickness
Decompression sickness occurs when the pressurized dissolved nitrogen gas in your tissue is not allowed sufficient time to escape as the pressure drops during ascent.
The risk of decompression sickness is always a function of depth, time and ascent rate.
Simply put, the bends are caused by diving too long, diving too deep, coming up too fast or a combination of all three.
From Quiz: 10 simple questions about Scuba diving
Answer: EAN32 and EAN36
Nitrox is a mixed gas that has larger %'s of oxygen then regular air. Regular air is comprised of 21% oxygen, 78% nitrogen and 1% other gases. The numbers following "EAN" are the oxygen %'s of the gas. By increasing the oxygen percentage in the gas, you decrease the amount of nitrogen being absorbed by the body and thus increasing your max bottom time before having to decompress. The negative is that it limits your maximum depth because the oxygen will become toxic sooner.
From Quiz: SCUBA Diving 101
Answer: First stage and second stage
Your first stage drops the air pressure from your tank (which can be up to 3,000 psi) down to a safe, controllable level, according to depth pressure. Your second stage is what you hold in your mouth and provides breathable air on-demand.
From Quiz: SCUBA Duba Do
Answer: 33 feet
For every 33 feet, the pressure increases by 1 bar.
From Quiz: Scuba Diving
Answer: Nitrogen Narcosis
Breathing nitrogen under pressure produces an narcotic effect known as nitrogen narcosis. Most divers experience symptoms of nitrogen narcosis at depths greater than 100 feet, but symptoms may occur in depths as little as 33 feet. Divers that dive to depths of 100 feet plus on a regular basis tend to be less affected than divers who are not used to this.
Ascent reverses the symptoms of nitrogen narcosis. Factors that increase the risk of narcosis include cold temperatures, rapid descent, anxiety, alcohol, sedatives, fatigue, and carbon dioxide excess.
Symptoms include light-headedness, inattention, difficulty concentrating, poor judgment, anxiety, decreased coordination and hallucinations
From Quiz: 10 simple questions about Scuba diving
Answer: Florida Keys
While all of these others locations offer some great and unique diving experiences, the Florida Keys still reign supreme as the most popular SCUBA destination in the United States.
From Quiz: SCUBA Diving 101
Answer: Tahiti
Please find some pictures of this dive site to truly understand why shark lovers come from all over to dive Tiputa Pass. The visibility can reach 150 feet and the water a constant 80 degrees.
From Quiz: SCUBA Destinations
Answer: 33 percent
Things tend to be 33 percent larger and appear 25 percent closer while looking at them underwater due to light refraction phenomena, so the fish you see while scuba diving look a lot bigger.
From Quiz: Scuba Diving
Answer: British Sub Aqua Club or BSAC
The BSAC has been involved in scuba diver training since 1953 and was recognized as the official training agency in the UK in 1954. The training standards set by the BSAC were subsequently adopted by national training agencies worldwide. In the 1980s PADI developed easier training methods that were better suited to holiday destinations and took over as the leading diving training agency.
From Quiz: 10 simple questions about Scuba diving
Answer: Giant Stride
A giant stride is the best way to get in the water in most situations, but I must say that I prefer to do a back roll off the side as you don't have to maneuver around much in your gear.
From Quiz: SCUBA Diving 101
Answer: Aliwal Shoal
Ragged Tooth sharks are also known as sand tigers. Aliwal Shoal is also home to the Tiger Shark, Grey Reef Sharks, White Tip Sharks, and Indian Ocean Nurse Sharks.
From Quiz: SCUBA Destinations
Answer: 75
Also in the summer, it can actually keep you cooler.
From Quiz: Scuba Diving
Answer: Tropical reefs
Although diving takes place almost anywhere where there is water tropical reefs are by far the favorite locations. On tropical reefs you will find marine life variety and visibility that not matched by any other location
From Quiz: 10 simple questions about Scuba diving
Answer: So your body has enough time to off gas
While it is important to be rested and sure you are not injured, the most important reason to have a surface interval is to allow the built up Nitrogen in your system to dissipate sufficiently enough to reduce the need to decompress on your next dive.
From Quiz: SCUBA Diving 101
Answer: Grand Cayman Island
Another one of the beautiful Cayman Islands. Grand Cayman is the main island of the 3. The stingrays will actually give you hickies while trying to suck in as much food as possible.
From Quiz: SCUBA Destinations
Answer: Cutting free from entanglements
Although in an emergency, a dive knife could be used to fight off an overly aggressive form of marine life, divers for the most part should know to stay clear of marine animals that can get aggressive. The best reason to carry a dive knife is for cutting free of entanglements, like drifting seaweed or strands of fishing line that can cause serious trouble for divers.
From Quiz: SCUBA Duba Do
Answer: Diver carelessness
Most divers are attacked because they provoked it. Scuba usually is a safe trip with our aquatic friends.
From Quiz: Scuba Diving
Answer: To prevent heat loss and protect against jellyfish stings
Water conducts heat much better than air so even if the difference in temperature between the water and your body is small you can still have serious heat loss (hypothermia) over a relatively short period of time. Also, a wetsuit will protect you against jellyfish stings with risks that can range between uncomfortable or painful to fatal.
From Quiz: 10 simple questions about Scuba diving
Answer: 60 ft / 18m
It is recommended that you only dive to a maximum depth of 60ft.
From Quiz: SCUBA Diving 101
Answer: Christmas Island
Very secluded island. This island was discovered on Christmas Day in 1643 by Capt. William Mynors.
From Quiz: SCUBA Destinations
Answer: Bow, starboard, head, port
This is useful information so when approaching a boat from below, the divers are aware of which side of the boat is which.
From Quiz: Scuba Diving
Answer: Key Largo
Key Largo is the northernmost island of the Florida Keys. The Keys have the only living coral barrier reef in North America.
From Quiz: SCUBA Destinations
Answer: All of these
From Quiz: Scuba Diving
Answer: The letter "A" flag
From Quiz: SCUBA Duba Do
Answer: 25 minutes
Navy dive tables are a little different in their safety tolerances than most recreational tables, and really shouldn't be used for recreational dive planning. Most recreational dive tables (Doppler tables) place the limit at 20 minutes. After that, you are required to spend time decompressing after the dive, which isn't very fun.
From Quiz: SCUBA Duba Do
