Asked by Andy Blackwell Uncategorized
A diver uses this to help breathing?
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Asked in Scrabble
A diver uses it to help him breathe while under water?
What is a 8 letter words of what a diver uses to help him breathe under water?
What would happen if a scuba diver dived without a regulator?
Asked in Scuba
What does a diver use to help them breathe underwater?
Why does a diver feel difficulty in breathing in depth of ocean?
Asked in Scuba
How much time does a scuba diver spend under water?
It depends on how deep the diver goes, and what air blend the diver is breathing. There are dive tables that state how long a diver can stay at a certain depth before requiring decompression. The basic recreational diver typically breathes either air or Nitrox. There are separate dives tables for air and Nitrox.
Asked in Chemistry
What partial pressure of oxygen is a scuba diver breathing if the total pressure is 6.3 ATM and 20 percent of the air is oxygen?
Asked in Scuba
What happens to divers who go deep?
Going deep has several effects on a diver: The diver will consume her breathing gas at a faster rate, because each lungful of breathing gas is at greater pressure. A diver at 60 feet will breathe roughly 3 times as much gas as a diver at the surface. A diver at 130 feet will breathe roughly 5 times as much gas. The diver will start to suffer narcosis at deeper depths. For divers breathing air (the most common breathing gas) or nitrox, narcosis usually starts to become noticeable at about 100 feet. Divers breathing helium mixes can get much deeper. Narcosis slows the mental and physical reactions of the diver. The diver's body will absorb gases from her breathing mixture at a faster rate. If the diver stays deep enough and long enough, she will have to perform decompression stops before ascending to the surface, or risk injury (or even potentially death) from decompression sickness. Divers normally use tables or dive computers to stay within no-decompression limits. At deeper depths, more spectrums of visible light are absorbed by the water. Accordingly the deeper you go, the more everything will start to look blue and green. The total light is also reduced, and so in low visibilty conditions, torches may be need once the diver descends to a certain depth. At deeper depths the water is colder and so the diver will also get colder, faster. Because the breathing gas is more dense at depth, breathing resistance will normally increase. Divers intending to dive deep usually use high performance regulators and/or helium mixes (which is a less dense gas) to reduce the effects of this. Divers have to be very careful not to exert themselves at depth (which breathing resistance can contribute too), as they can suffer from increased CO2 retention which can lead to hypercapnia. If the diver is diving an oxygen rich mixture, such as nitrox, the diver can be at risk for oxygen toxicity. Divers using nitrox are trained how to avoid this. It is theoretically possible, although highly unlikely, that a diver breathing air could suffer oxygen toxicity if they went deep enough.
Asked in Inventions, Scuba, Technology
How does scuba gear work?
Self-contained underwater breathing apparatus (scuba) has been developed to enable man to swim and stay underwater for long periods of time. A scuba diver carries metal tanks (that hold compressed air or a special mixture of breathing gases) on his back and wears a mask and fins. Breathing compressed air will damage the lungs. How can the compressed air be made safe to breathe? The diver breathes air from the tanks through a hose. The air is fed to the diver's mouthpiece through a regulator which does two things: It automatically reduces the pressure of the air from the tank to a safe level (equalized with outside water pressure) for the diver to inhale. It supplies air when the diver inhales. When the diver exhales, the air from his lungs is released into the water and is seen as a rush of rising bubbles.