metres. What is the maximum allowable time for the second dive? - Answer- 53 minutes
I am planning to make two dives. The first dive is to 18 metres for 49 minutes, and the second dive is to 18 metres for 24 minutes. How long would I have to stay on the surface (minimum surface interval) to do these two dives safely? - Answer- 32 minutes
I dive to 17 metres for 47 minutes. After a 30 minute surface interval I do a second dive to 17 metres. Losing track of time, I notice my bottom time is now 25 minutes. According
to the General Rules, what should I do? - Answer- Ascend (go up) right away to 5 metres and stay there for at least 8 minutes before going to the surface, and not dive for
six hours.
A group of Advanced Open Water Divers plans to make two dives. The first dive is on a reef in 22 metres of water for 20 minutes. The group then remains on the surface for 1 hour. The second dive is on a wreck in 16 metres of water, with a planned bottom time of 30 minutes. What will be the ending pressure group after the second dive? - Answer- P
My buddy and I are planning to dive at a site where the water and air temperature are near freezing. We plan to dive to 18 metres for 30 minutes. What dive profile would we use when planning our dive? - Answer- 22 metres for 30 minutes
I am an Advanced Open Water Diver. I plan to do three dives. The first dive is a 25-
metre dive for 20 minutes followed by a 52 minute surface interval. The second dive is to 16 metres for 37 minutes followed by a surface interval of 62 minutes. My third dive is
to 16 metres. What would be my maximum allowable bottom time for this third dive? - Answer- 47 minutes
To reduce the risk of decompression sickness (DCS) - Answer- make a safety stop at 5 metres at the end of each dive
I make two dives in one day and I am flying home on a commercial plane. What is the minimum time recommended that I should wait before I go on the plane? - Answer- 18 hours
When diving in the mountains at places higher than 300 metres, I - Answer- need to use
special tables and procedures (rules).
When I am diving with a computer, I should - Answer- stay well within the computer limits