Finally rediff has come up with a great article. Although most of us wont go for this job, it was a very informative article on a job that few people know much about.
Good One Mate!! But U 4got to mention... the field has got saturated as well & one has to have a God Father all along or be an expert Politician to survive the Trips, these days no ones looking for expertise!! :)
They have to undergo lot of difficulties. Once they dive 500 feet below the sea the pressure is more. They cannot go all of a sudden to such a depth. They were kept in a chamber to increase the pressure for 2 hours as same as the pressure under the see to adopt the lungs to that environment. They cannot come out all of a sudden. Same procedure should be adapted as above.