BSAC OCEAN DIVER QUESTIONS AND
ANSWERS WITH COMPLETE
SOLUTIONS GUARANTEED SUCCESS!!!
Elected Committee Members
✔✔ The main roles typically elected in a diving club include:
Diving Officer
Training Officer
Chairperson
Treasurer
Secretary
Equipment Officer
BSAC Branches vs. Centres
✔✔ Branches are local, volunteer-run dive clubs (around 1,000 across the UK and
internationally).
✔✔ BSAC Centres are professionally operated dive training schools that provide
structured instruction.
Structure of BSAC Organisation
✔✔
President leads as figurehead
BSAC Council: elected volunteers managing the organisation for its
members
National Diving Committee (NDC): appointed experts for diving standards
and guidance
Regional Coaching Teams: support local training
Note: All positions are filled by volunteers.
,Objective of Ocean Diver Training
✔✔ Prepares divers to explore open water up to 20 meters deep, with supervision
from a dive manager in suitable and safe conditions.
Objective of Discovery Diver Level
✔✔ Permits diving to a maximum depth of 12 meters under direct, in-water
supervision from a qualified Dive Leader.
What Is the BSAC Council?
✔✔ A group of elected volunteers who oversee the management and governance
of BSAC for the benefit of its members.
Atmospheric Pressure Explained
✔✔ At sea level, the pressure exerted by the atmosphere on a 1 cm² area is
equal to 1 bar, or roughly 1 kg of force.
Understanding Water Pressure
✔✔ For every 10 meters of depth, water pressure increases by 1 bar. This is
added to the existing 1 bar of atmospheric pressure.
Tools for Measuring Water Depth
✔✔ Depth gauges are used to determine depth and thus calculate the pressure
experienced underwater, usually measured in meters.
Total Pressure at Different Depths
10m depth: 1 bar (water) + 1 bar (air) = 2 bar
20m depth: 2 bar (water) + 1 bar (air) = 3 bar
, Effect of Pressure on Air Volumes
✔✔ As pressure increases, air compresses.
At 2 bar, air volume is reduced to ½
At 3 bar, it’s reduced to ⅓
At 4 bar, it becomes ¼ of the original volume
Human Body Water Content
✔✔ Approximately 80% of the human body is made up of water.
Key Features of a Dive Mask
✔✔
Sturdy frame for durability
Tempered glass to prevent shattering
Soft silicone seal for comfort and water-tight fit
Rinse in freshwater after use
Avoid drying in direct sunlight to preserve the silicone’s flexibility
Fins - ANSWER✔✔Either shoe fin with foot pocket (in warm conditions) or strap
fin (over boots, with strap or spring to keep in place) - wash in fresh water and dry
standing on food pocket end
SCUBA acronym - ANSWER✔✔self contained underwater breathing apparatus
Scuba equipment - ANSWER✔✔Cylinder
Buoyancy Compensator
Regulator
ANSWERS WITH COMPLETE
SOLUTIONS GUARANTEED SUCCESS!!!
Elected Committee Members
✔✔ The main roles typically elected in a diving club include:
Diving Officer
Training Officer
Chairperson
Treasurer
Secretary
Equipment Officer
BSAC Branches vs. Centres
✔✔ Branches are local, volunteer-run dive clubs (around 1,000 across the UK and
internationally).
✔✔ BSAC Centres are professionally operated dive training schools that provide
structured instruction.
Structure of BSAC Organisation
✔✔
President leads as figurehead
BSAC Council: elected volunteers managing the organisation for its
members
National Diving Committee (NDC): appointed experts for diving standards
and guidance
Regional Coaching Teams: support local training
Note: All positions are filled by volunteers.
,Objective of Ocean Diver Training
✔✔ Prepares divers to explore open water up to 20 meters deep, with supervision
from a dive manager in suitable and safe conditions.
Objective of Discovery Diver Level
✔✔ Permits diving to a maximum depth of 12 meters under direct, in-water
supervision from a qualified Dive Leader.
What Is the BSAC Council?
✔✔ A group of elected volunteers who oversee the management and governance
of BSAC for the benefit of its members.
Atmospheric Pressure Explained
✔✔ At sea level, the pressure exerted by the atmosphere on a 1 cm² area is
equal to 1 bar, or roughly 1 kg of force.
Understanding Water Pressure
✔✔ For every 10 meters of depth, water pressure increases by 1 bar. This is
added to the existing 1 bar of atmospheric pressure.
Tools for Measuring Water Depth
✔✔ Depth gauges are used to determine depth and thus calculate the pressure
experienced underwater, usually measured in meters.
Total Pressure at Different Depths
10m depth: 1 bar (water) + 1 bar (air) = 2 bar
20m depth: 2 bar (water) + 1 bar (air) = 3 bar
, Effect of Pressure on Air Volumes
✔✔ As pressure increases, air compresses.
At 2 bar, air volume is reduced to ½
At 3 bar, it’s reduced to ⅓
At 4 bar, it becomes ¼ of the original volume
Human Body Water Content
✔✔ Approximately 80% of the human body is made up of water.
Key Features of a Dive Mask
✔✔
Sturdy frame for durability
Tempered glass to prevent shattering
Soft silicone seal for comfort and water-tight fit
Rinse in freshwater after use
Avoid drying in direct sunlight to preserve the silicone’s flexibility
Fins - ANSWER✔✔Either shoe fin with foot pocket (in warm conditions) or strap
fin (over boots, with strap or spring to keep in place) - wash in fresh water and dry
standing on food pocket end
SCUBA acronym - ANSWER✔✔self contained underwater breathing apparatus
Scuba equipment - ANSWER✔✔Cylinder
Buoyancy Compensator
Regulator
