The majority of this gear should be used only after significant training. Your local dive shop should help you with that. It is also important that your gear be maintained -- your life may literally rely on it.
-Buoyancy Compensators. This typically serves two main purposes (and maybe a third). First, it is a way to attach the tank to you. Typically a BC is a vest or includes a harness. Second, it has an air bladder that can be inflated and deflated to keep you neutrally bouyant (so you neither float nor sink when in the middle of the water column). This is needed because your bouyancy does change over the course of the dive. As the tank pressure is reduced, you become more bouyant. As you descend, your wetsuit is compressed which makes you less bouyant. Sometimes, the BC may also be used to carry the weights (called weight integrated) or have the octopus integrated into the BC inflator.
-Dive Computers: See gauges. Typically, this will include both a dive timer and depth information recorded real time. This helps avoid the bends. The air pressure can also be incorporated (but might not be).
-Scuba Fins: These greatly reduce the effort required to swim.
-Scuba Diving Gauges: These monitor four things. A compass provides directional information. A pressure gauge tells you how much air is left in your tank. A depth gauge tells you how deep you are. A bottom timer tells you how long you have been underwater. These are crucial: time and depth need to be managed to avoid the disease known as the bends. Air pressure is also crucial -- without air in the tank, you have no air source.
-Dive Masks: This functions by creating a pocket of air in front of your eyes and allows you to see clearly underwater. (Note: It does not do anything to prevent pressure from being applied to the eye -- they can handle the pressure).
-Scuba Octopuses. A spare second stage -- see below.
-Scuba Regulators. This is what allows you to breath while underwater. The regulator has two stages -- one reduces the pressure from over 1000psi to around 100psi (a bit of a fudge here) and is called the first stage. The second stage is attached to the hose and is what goes in your mouth. It reduces the pressure further and is a demand valve.
-Snorkels: This allows you to breath (while on he surface) but with your face in the water.
-Scuba Tanks: This is a metal cylinder that contains pressured air. A tank will typically hold over 3000 PSI.
-Diving Weights and Belts: The belt holds the weights to you. It is designed to be released in an emergency. The goal of the diver is to be neutrally bouyant. Because some dive equipment (wetsuit) and most people are naturally bouyant, some weight must be worn to be neutrally bouyant.
-Dive Reels: This is a specialized piece of gear that is used in a few different contexts. It can be used to mark a route underwater (most often in cave and wreck diving), or to help when setting up a search pattern. (Both caves and wrecks are hazardous environs where you cannot not ascend directly to the surface and where it is possible to be in zero viz from a silt out). It can also be used to help guide a surface float up.
-Spearguns : These are used to shoot fish (think of it as underwater hunting). Frowned on in most locations.
-Scuba Hoods: Since much of your body heat is lost through your head (and water sucks heat from the body even quicker than air), this can help keep you warm.
People snorkeling use a mask, fins and snorkel. Some also use a hood/wetsuit, weights and snorkel vest. A spear gun may be used as well. The rest of the gear is used only in diving.
2006-07-09 12:54:21
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answer #1
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answered by bonairetrip 4
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Wow this is a loaded question . I will try to explain as brief as possible . first an foremost you should take a SCUBA class to explain in detail . Here we go WET Suit and Hood are Thermal protection . (approximately 25% of heat loss is from your head ) BCD is buoyancy compensation device . ( lets you be neutrally buoyant also float while on surface) Fins allow you to swim more efficiently in the water . Mask ( must have nose pocket for equalizing your ears . and an air space around the eyes so you can see) The regulator which make up First stage , Primary , Octopus and console ( console has depth Gage , air pressure Gage(SPG) or computer and compass). This is a life support system with an alternate air source ( octopus ) This takes about a 3000 psi Tank of compressed air to a Breathable air pressure . Computer monitors your residual nitrogen to keep you safer on your dive . More accurate at dive planning . Spear gun is for underwater hunting . There are several reels . For marking spots , Attaching to spear guns , Laying a line in caves or wreck etc. Weights and weight belts allow you to submerge , snorkels allow you to conserve air on surface . As a new diver some items are not needed . This is a general description at best . Take a dive class you will be glad you did .
2006-07-10 02:43:38
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answer #2
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answered by J D 4
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A bc is a device that you wear. You let air into it and let air out of it. It is used to control your buoyancy, you let a bit of air into it if you need to become lighter, you let out some air if you need to become heavier. Fins just help you move through the water with less effort. You gauges give you info you need to monitor such as how much air you have left, how deep you are. You mask lets you see underwater. The octo is just the spare regulator. snorkle is a tube that lets your breathe when you are at the surface but you want to keep your face in the water. Tanks hold your air or other gas you are breathing. Weights are used to add weight to you so you don't float. The reel is used if you are trying to lift something up that is at the bottom. You basically attach the item to the cable and use an air bag to float it to the top. A spear gun is used for fish hunting. A hood is used to reduce the amount of body heat you lose via your head which is where you lose most of you body heat. Oh and a computer monitors all aspects of your dive. As you dive, nitrogen accumulates into your blood stream, if you get too much in there you can get very sick. There are mathmatical formulas you use to set safe limits for your dive, variables include, depth, time at specific depths, surface intervals between dives etc. The computer keeps a running total of these variables so you can more accuratly monitor your dive limits.
2006-07-09 10:20:28
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answer #3
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answered by Sportsterjohn 5
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-boyancy compensators: to make sure you don't go too deep or stay too near to the surface, you need them to control how deep you go (and stay!!)
-dive computers: to see how many air is left, how long the air will last, how deep you've been and for how long--> you need to copy this info in your logbook, the computer will safe the info so you don't have to remember everything
-fins are for moving faster and with less effort
-don't really know
-to see clearer under water AND being able to clear them so the pressure on your eyes doesn't get too high (which could damage your eyes to the point of becoming blind)
-octopuses are reserve/ back-up regulators, if your first one breaks you can use this one, or if your buddy's regulator (and octopus) breaks, he/ she can use yours
-to breath
-in case you have drifted too far from shore/ teh boat and you either need to keep breathing until help comes or you have to swim back to the shore/ boat and your tank (air) is empty
-weights: to get you down (kinds like the boyancy compensators, only those are only to fine-tune it, the wight(belts) get you down in the first place)
-reels: don't really know what that is, sorry
-spearguns: you'll only need them when told or advised, and only in places where there are certain dangerous fish that could kill you, you need the gun to protect yourself from those fish
-you don't always need a scuba hood, but if you don't, your head could get really, really cold, so to keep your head warm: use a hood. just make sure you do fill it with water or the pressure will encrease way to much and damage rapture your ear-drums
2006-07-09 04:48:53
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answer #4
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answered by Anonymous
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if you don't know what a snorel is leave the rest of the equipment alone until you have had a SCUBA class
2006-07-09 12:46:21
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answer #5
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answered by rescuediver 1
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look them up on google...its really helpful
2006-07-09 07:07:23
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answer #6
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answered by iSwim4ever 2
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i though god was the answer to all questions ???
2006-07-09 00:16:30
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answer #7
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answered by Ivanhoe Fats 6
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