SCBA Flashcards
Fire fighters should not enter atmosphere exceeding what degrees without full ppe and SCBA
120 ° fahrenheit
What are normal concentration of carbon dioxide in the atmosphere
300 ppm
What is the normal oxygen concentration in the atmosphere
20.9 %
What is the concentration of oxygen in an oxygen deficient atmosphere
Less than 19.5 %
Carbon monoxide unites with hemoglobin how many more times readily than oxygen does
210 times more
What is the Scott AP 75 5.5 SCBA cylinder made of
An aluminum shell over-wrapped with carbon fiber.
Who regulates the SCBA cylinder hydrostatic testing
Department of transportation (D.O.T)
What is the weight of a fully charged SCBA cylinder
14 lbs
How often should Hydrostatic test be done on SCBA cylinders
Every 5 years
What is the life span of a SCBA
15 years from date of manufacture
How many cubic feet of air is contained inside of an SCBA cylinder
66 cubic feet of air
How many psi is contained in a full SCBA
5500 psi
How long is the Dual EBSS hoes
3 feet
The primary pressure reducing circuit reduces air pressure from what to what
From 5500 psi (cylinder pressure) to 100 psi
What is the over pressure relief valve set too
225 psi
SCBA cylinders should be changed when air falls below what PSI
5000 psi
What is level 1 damage to the SCBA cylinder
Cuts or scratches involving outer surface only
SCBA cylinders with damage greater than what level should be placed out of service
Damage greater than Level 1
When will 1 green light show on heads up display
When PSI drops to approximately 4000 psi
When will yellow light appear on SCBA heads up display
When air pressure drops to approximately 2750 psi
What happens to SCBA heads up display when air pressure drops to1800 psi
The vibralert will sound and the red light on the SCBA heads up display will flash rapidly for 10 second
Who should all SCBA harness defects be reported to
The Air unit
Who shall defective facepieces be reported to
The Safety Chief
How long is the High pressure hose on the RIC/UAC
25 feet
How long is the low pressure hoes on the RIC/UAC
20 feet
When whill the Low air whistel activate on the RIC/UAC
When air pressure drops to 25% of a full bottle
What are the 2 main categories for emergency air supply
Supply of compressed air, and component replacement.
What are the responsibilities of the 2 person team responsible for the RIC/UAC
Air management, and packaging
Who is the air management firefighter for the RIC/UAC
The hook position
Who is responsible for packaging the down firefighter when operating the RIC/UAC
The Bar position
How long does it take a full scba cylinder to transfill a completely empty SCBA and equalize.
Approximately 45 seconds
