What is the golden rule of diving?
Never hold your breath. This is undoubtedly by far the most crucial of all safety rules for diving because failure to adhere could result in fatality. If you hold your breath underwater at the depths at which scuba divers reach then the fluctuating pressure of air in your lungs can rupture the lung walls. Never hold your breath. This is undoubtedly by far the most crucial of all safety rules for diving because failure to adhere could result in fatality. If you hold your breath underwater at the depths at which scuba divers reach then the fluctuating pressure of air in your lungs can rupture the lung walls.The only thing for certain is that the optimum breathing strategy when scuba diving is deep slow breathing. You need to inhale slowly and then also exhale slowly without holding your breath.To scuba dive you must not be extremely overweight or out of condition. Under certain conditions, diving can be strenuous. Respiratory and cardiovascular systems should be in good shape. All body airspaces must be normal and healthy.You can’t breath at the bottom of the ocean. If you can’t breath, your body won’t stay alive for more than about 30 minutes. Although you’d lose consciousness after about 5. The water pressure is very high.
What is the biggest danger in scuba diving?
Drowning is the most common cause of scuba diving deaths. Divers drown due to running out of air, panic, lack of training, unrelated health problems that cause unconsciousness and equipment failure. As you know humans are built to breathe only air. Inhaling water can become deadly very quick. The most common type of diving injury results from “smacking” the water—essentially a belly-flop or back-flop where the body lands parallel to the water. These smacks hurt and may cause welts and bruising, but rarely result in more serious physical damage.
What is the 120 rule in diving?
Subtract the depth you’re diving (in feet) from 120. The resulting number is the maximum amount of minutes you should spend at that depth. Total time = Tank capacity / Air per minute. Using an 80 cubic foot tank at 3,000 psi: A diver with a SAC rate of 0. With an 80 cubic foot tank, they’d have about 53 minutes of dive time (80 / 1.
What does HSE stand for in diving?
Before beginning training, all diving trainees must be examined by a Health and Safety Executive (HSE) Approved Medical Examiner of Divers (AMED). If passed fit, the AMED will issue a certificate of medical fitness to dive. The HSE Scuba qualification is the first rung of the ladder in the commercial diving world and is a must for anybody looking to dive in the media, scientific, archaeological or shellfish industries . The HSE scuba qualification is also required before commencing the Surface Supplied course.The HSE Closed Bell qualification allows the diver to work to unlimited depth using oxygen and helium breathing mixtures (mixed gas) and saturation techniques. The Underwater Centre is currently offering students the option to sit an IMCA standard ALST exam.