Core scuba gear, certification levels, and dive safety terms for beginner divers.
35 cards · basic cards · AI-written, checked twice. Edit anything.
- What does BCD stand for?
- Buoyancy Control Device
- What is the primary purpose of a regulator?
- Reduces tank pressure and delivers breathable air to the diver
- What does a wetsuit do for a scuba diver?
- Provides thermal insulation to retain body heat
- What is the purpose of fins in scuba diving?
- Move through water more efficiently with less energy
- Why does a scuba diver wear a mask?
- To create an air pocket so the diver can see clearly underwater
- What is a snorkel used for?
- To breathe at the surface without lifting your head out of the water
- What does a scuba tank contain?
- Compressed air or other breathing gas
- What is the purpose of a weight belt?
- To counteract buoyancy so the diver can descend and maintain depth
- What does a dive computer display?
- Depth, bottom time, dive profile, and decompression information
- Define buoyancy in diving
- The upward or downward force acting on a diver due to water displacement and weight
- What is decompression sickness commonly called?
- The bends
- Define nitrogen narcosis
- A condition caused by breathing nitrogen at depth, causing impaired judgment and coordination like drunkenness
- What does neutral buoyancy mean?
- When a diver's weight exactly equals their buoyancy and they neither rise nor sink
- Explain the buddy system in diving
- Two divers stay together during a dive to monitor each other and assist in emergencies
- What is a safety stop?
- A brief stop near the surface, usually 3 to 5 minutes at 15 feet, to allow nitrogen to exit the body