Placing the alternate air source somewhere between the lower corners of the rib cage and the chin ensures that an out-or-air diver will be able to approach any diver under water, even one with whom he is unacquainted, and locate and efficiently secure an alternate air source..
Also know, where is the best place to position an alternate air source?
The best alternate air source position for a scuba diver is between the chin and the triangle formed by the lower part of the ribs.
Beside above, what are the two basic parts of a regulator called? In it's most basic form, a scuba regulator consists of two parts: a mechanism that accomplishes the first stage of pressure reduction (called ?first stage) and a mechanism that accomplishes the second stage of pressure reduction (called second stage).
Hereof, what side does your regulator go on?
INSTALLING YOUR REGULATORS So as not to confuse the hoses during assembly, stand behind the tank. The hose for your main regulator should be in your right hand, while the hose for your inflator will be in your left hand.
When making an emergency ascent A scuba diver should?
RULE #1: Perform the ascent with your BC control in hand, ready to use. RULE #2: Keep your regulator in your mouth so you can continue to use it, keep water out of your mouth, maintain normal control and have the psychological security of the regulator in place.
Related Question Answers
What is the difference between a yoke and a DIN fitting?
Unlike yoke valves, DINs have a threaded opening where a regulator screws into the valve, and no o-ring (it's found on the first stage in DIN systems). DIN valves are rated for higher pressure than yokes, making them indispensable for technical/deep diving.What happens to my wetsuit when I descend?
Volume and Buoyancy You'll be wearing the amount of weight required to achieve neutral buoyancy at the surface. But as you descend, your wetsuit will compress. This decreases your volume, and results in a loss of buoyancy. To maintain neutral buoyancy, you need to add air to your BCD as you descend.Should take a local area orientation dive whenever I?
You should take a local area orientation dive whenever: You dive someplace new. Underwater visibility (how far you can see horizontally) can be affected by: Water movement, weather, and suspended particles (floating silt) in the water.How close should you stay to your dive flag padi?
For areas where no laws stipulate these distances, the rule of thumb is for you to stay within 15 metres/50 feet of your flag and for boats to stay at least 30 to 60 metres/100 to 200 feet away. Also, don't display the dive flag unless divers are actually in the water.When clearing a mask of water you should form a seal by?
Simply inhale through your mouth and exhale into the mask through your nose. Once the mask is free of water, press the mask to your face to ensure it is sealed properly. [TWO] Place the palm of one hand along the top of the mask, pressing inward to keep the top seal in place.When planning a dive in cold water or under strenuous conditions using the Recreational Dive Planner?
Cold and Strenuous Conditions. When using the RDP for planning a dive in cold water or under conditions that may be more strenuous than usual, plan your dive as though the depth were 4 metres/10 feet deeper than it actually is.What should I do to prevent mask squeeze?
The solution to preventing mask squeeze is to remember to keep your nasal passageways open during descent. By exhaling through your nose and using a properly fitted mask, you will minimize the risk of facial barotrauma.What is the most important feature of a scuba regulator?
Regulator System. The primary function of a scuba regulator is to reduce high-pressure air in the scuba cylinder to ambient (surrounding) pressure, making it as easy to breathe under water as it is at the surface.What is the main reason to wear a BCD?
A buoyancy compensator, also called a buoyancy control device, BC, BCD, stabilizer, stabilisor, stab jacket, wing or ABLJ depending on design, is a piece of diving equipment with an inflatable bladder which is worn by divers to establish neutral buoyancy underwater and positive buoyancy on the surface, when needed.What piece of equipment should never be allowed to dangle freely?
What piece of equipment should never be allowed to dangle freely? Alternate-air-source second stage. BC power inflator. Submersible pressure gauge or instrument console.How much is a diving regulator?
There are many regulators priced well under $300 that do the basic job and even some budget models that deliver as much air in extreme conditions as the most expensive ones.What two metals are scuba tanks made from?
Cylinders are made out of two types of material: steel and aluminum (actually an aluminum alloy).What is the difference between a regulator and an octopus?
Essentially, the octopus is just a second stage regulator. Since the octopus is only used in the event of an emergency, most of them are very basic regulators. You can purchase some that have more features than the basic ones, but most octopus' don't come with any bells and whistles and, therefore, are very affordable.What are the rules for the ascent rate?
The 30-foot-per-minute rate may not always be practical for the whole ascent, especially when you are deep and low on air or approaching hypothermia. In that case a faster rate, up to 60 feet per minute, is acceptable, but for the final 60 feet of your ascent, you should slow to 30 feet per minute.How do regulators work?
Pressure regulators reduce a supply (or inlet) pressure to a lower outlet pressure and work to maintain this outlet pressure despite fluctuations in the inlet pressure. The reduction of the inlet pressure to a lower outlet pressure is the key characteristic of pressure regulators.What do you do if you run out of air when scuba diving?
Stay within your dive training limits. Turn back when you exhaust half of your available gas supply and make sure you conserve enough air for flotation on the surface. Adjust your buoyancy in protected, shallow water. If you find you have buoyancy problems, abort the dive and fix the problem.What is a 5 point ascent?
This skill is best remembered by using the acronym STELA: Signal, Time, Elevate, Look up, Ascent. In order to demonstrate this skill, follow these steps: Give the skill signal for the five point ascent. The first point is to signal to the buddy that it is OK to go up and all are ready to ascend.Why do divers exhale when surfacing?
As the diver ascends, the air in the lungs expands as surrounding water pressure decreases. Exhaling allows excess volume to escape from the lungs, and by exhaling at a suitable rate the diver can continue exhaling throughout the ascent and still have air in his or her lungs at the surface. 
