Scuba diving is a type of underwater diving whereby divers use breathing equipment that is completely independent of a surface air supply. The most convenient and reliable method of communication between divers is through the use of simple hand signals.
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In professional diving diver communication is usually between a single working diver and the diving supervisor at the surface control point.
. Professional divers will also learn other. Diver communications are the methods used by divers to communicate with each other or with surface members of the dive team. Diving hand signals used to communicate underwater.
To formally standardize the most common hand signals used during recreational scuba diving. Join your thumb and index finger to form a loop and then extend the remaining three fingers up. The OK hand signal is usually the first one that divers learn.
Some procedures are common to almost all scuba dives or are used to manage very common contingencies. Effective underwater communication is necessary for the safe and efficient conduct of any recreational or training-related scuba dive. As a demand-response signal you use it to ask if other divers are okay and they must also use it as a response to your inquiryunless there is something wrong in which case youll have to use the.
Dont Hold Your Breath Underwater - According to dive training organizations a diver should never hold his breath underwater because if he ascends even a few feet to an area of lesser water pressure the air trapped in his lungs will expand according to Boyles Law. How to do it. This is considered important both for managing the diving work and as a safety measure for.
The expanding air can stretch the divers lungs and lead to pulmonary barotrauma.
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