SDI Chapter 2 Review Practice Test.
SDI Chapter 2 Review Practice Test. What is the absolute pressure (in atmospheric bars) at 20 meters (66 feet)? - CORRECT ANSWER 3 atm What will be the volume in a ball that is filled with two liters/cubic feet of air at 30 meters (99) feet when it is taken to the surface? - CORRECT ANSWER 4 times How many more times dense is the air in the balloon at 4 atm/bar compared to the density at the surface? - CORRECT ANSWER 4 times If a scuba cylinder lasts two hours at sea level, how long will it last at 20 meters (66 feet)? - CORRECT ANSWER 40 minutes How often should a scuba diver equalize during a descent? - CORRECT ANSWER Every couple of feet What should you do if you experience discomfort if your ears upon descending? - CORRECT ANSWER Stop and ascend a few feet until you no longer feel any discomfort and try to equalize again What is a reverse block? - CORRECT ANSWER A condition that occurs when air cannot freely escape from a airspace What should you do if you experience a reverse block upon ascending? - CORRECT ANSWER Descend a few feet and wait until the pain goes away What is the most important rule in scuba diving? - CORRECT ANSWER Breathe continuously and never hold your breath
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- Subido en
- 14 de julio de 2024
- Número de páginas
- 2
- Escrito en
- 2023/2024
- Tipo
- Examen
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