Padi Open Water Diving Section 4 Already Passed

If i exceed established depth and time limits while diving and then surface, bubbles can form in my body tissues, causing decompression sickness a. True b. False {Ans: True}After a dive, a diver had numbness, tingling and weakness in the arms. Are these possible signs/symptoms of DCS? a. Yes b. No {Ans: Yes}For practical purposes, air is ________ percent oxygen {Ans: 21}Dive computers track the amount of theoretical nitrogen in my body by measuring the depth and time throughout the dive. {Ans: True}Possible causes of contaminated air in Scuba cylinder include high levels of contaminant in the source has and {Ans: Getting it filled at an improper source}It is recommended that I have a complete physical examination when start diving and regularly thereafter. {Ans: True}