Diving Final Exam With Complete Solutions

what are the recommended depth and time for a safety stop? {Ans: 3 minutes at 15ft}what are three situations in which a safety stop is considered required? {Ans: 1. Your dive has been to 30 m or 100 feet or deeper 2. Your pressure group at the end of the dive is within three pressure groups of the no decompression limit on the RDP 3. You reach any limit on the recreational dive planner or your dive computer}how do you prevent problems with contaminated air? {Ans: get your cylinder filled only at reputable scuba air sources and have your tank checked regularly}how do you avoid decompression sickness? {Ans: by not exceeding established depth and time limits when diving and then surfacing.}what is the maximum depth limit for all recreational diving? {Ans: 18m/60ft}What is a "squeeze"? {Ans: A pressure imbalance that pushes tissues into an air space.}