Mailing List Archive Mailing List Archive
>From: VAXRIO::US3RMC::"jgibbo@ph*.lo*.ac*.uk*" "John Gibbons" 22-MAR-1995 07:05:06.40 >To: techdiver@opal.com >CC: >Subj: Re: Manifolds, bends, bars, etc. > ><Answer (straight forward): He has a total volume of 200 * 10 l of air at >1 bar. In 20 m depth we have 4 bars, so the divers has 4 times less volume >to breathe than at the surface = (200 * 10)/4 l. As he consumes 20 l/minute >he can stay (200 * 10)/4/20 minutes = 25 minutes (we don't account for the fact >that he cannot empty the tank completely due to the pressure of 4 bars).> > >Try again---- the absolute pressure at 20m = 3 bar not 4 (1 bar >atmospheric and 2 bar from the depth of water) Actually, the question proposed called for a depth of 30m, not 20m. Hence, the mistake is at the solution description: you should read "In 30 m depth ..." instead of "In 20 m depth ..." Enjoy !! --- Mauricio Henriques Network Consultant Phone: +[55](21)297-1122 x.4715 Digital Equipment Co. FAX: +[55](21)220-3324 Brazil PDIC Instructor Trainer #5262 HSA Instructor #0460 mauricio@va*.en*.de*.co* ---
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]