Air Embolism, Mediastinal Emphysema, Subcutaneous Emphysema, Pneumothorax D. Decompression Sickness, Arterial Gas Embolism and rupture of the Oval Windowĭ. A pressure that will progress to severe pain if equalization is not completed There are several lung overexpansion injuries that you should be aware of so that you can avoid them while diving. A pressure that will progress to severe pain if equalization is not completedĭ. Round and/or Oval Window The primary symptom of ear squeeze in its initial phase is:ī. The pressure on the outside of an closed air space is greater than the internal pressure Permanent hearing loss, vertigo and ringing in the ear are most likely to be the result of a ruptured:ĭ.

The pressure on the outside of an closed air space is greater than the internal pressure D. The pressure on the inside of an air space is greater than the external pressureĭ. The pressure on the inside of an air space is increasing to equalize with the external pressureĬ. Perspiration is profuse A physiological condition called a squeeze occurs when:Ī. Heat stroke is an extremely serious conditionĭ. 1.2m Which of the following statements concerning heat stroke is not true?Ĭ. Heart (pump), Blood (transport medium), Blood vessels (plumbing) A lung rupture can occur with over-pressurization in water as shallow as:ĭ. Heart (pump), Blood (transport medium), Blood vessels (plumbing) D. Right Atrium, left Atrium and Arteries onlyĭ. 33.7 The cardiovascular system consists of these three major components:Ī. 66 Assuming a maximum partial pressure limitation of 1.4 bar, the maximum depth for a 32% nitrox mixture is _ of seawater.ĭ. 25 meters The ocean depth at which the partial pressure of oxygen in air equals 1.6 bar is _ meters assuming O2 = 21%.ĭ. Your positive buoyancy will increase Assuming a maximum partial pressure limitation of 1.4 bar, the maximum MOD for a 40% nitrox mixture in the ocean is:ĭ. You willstay neutral no matter if you ascend or descendĭ. Remove weight If 2 liters of air are needed in your buoyancy compensator to maintain neutral buoyancy at 10m in the ocean, what will happen to your buoyancy if you ascend 3 m without deflating:ī. To be neutrally buoyant for freshwater diving with the same equipment, he /she has to:ĭ. 25 liters / minute A diver and his / her equipment weigh 87 kg when neutrally buoyant in saltwater. Increases as depth increases What would be the surface air consumption rate (SAC) of a diver with a 200bar, 10 liter cylinder who uses 50bar in 10 minutes at a depth of 10 meters in the ocean?ĭ. The absolute pressure at a depth of 50 meters in salt water is:ĭ.

Ssi open water diver final exam