Scuba Sup Flashcards
What is the normal working limit for scuba?
130fsw
What is the maximum working limit for scuba?
190fsw
What is the minimum equipment required for SCUBA?
- Fins
- knife
- Mask
- BC
- submersible pressure gauge
- Watch
- Tanks
-weights - Depth gauge
- Octopus (commanding officer)
What are the advantages to SCUBA?
- rapid deployability, portability, minimal support, minimal bottom disturbance, horizontal and vertical mobility.
SCUBA applications?
Shallow searches, inspections, light repair and recovery.
Disadvantages to scuba?
Limited endurance, limited protection, influenced by current, lack of voice comms.
Maximum current for scuba?
1 knot
Is standby required?
Yes.
When is small craft mandatory for SCUBA operations?
- open ocean diving.
- when untended
- when diving off large platform.
What is the minimum manning for SCUBA?
- Sup, tender, diver, standby
What does the first stage regulator do?
- reduce high pressure air from cylinders to intermediate pressure (over bottom).
What does the second stage regulator do?
- Reduces pressure from second stage.
At what PSI must a diver abort?
-500 psi for single bottle.
- 250psi for double bottles.
How often must SCUBA bottles be visually inspected?
- every 12 months
How often must SCUBA bottles be hydro?
- Every 5 years
What features does a BC need to have?
- able to provide 10 pounds of buoyancy.
- have jettisonable weights
- power inflator
- oral inflator
- over pressure relief valve.
How long should the buddy line be?
6-10 feet
What is the charging rate of SCUBA bottles?
- 400 wet, 200 dry
What are some communication methods of SCUBA?
- Slate, line pulls, hand signals
What emergency equipment should be present?
- AED
- First aid kit
- BVM
- spine board
- lost diver bouy
-portable oxygen
What are the three levels of chamber support?
Level 1- within 5 minutes
Level 2- within 1 hour
Level 3- within 6 hours
When should you give 5 rescue breaths
- when diver was found unconscious on the bottom
What is the length of a distance line?
10-100ft
What is the length of a buddy line?
6-10 feet