SCBA Flashcards
Hydrostatic testing is performed on bottles every?
5 years
Service life of an air cylinder
15 years
Date on the bottle means what?
Tested on that day and needs to be tested again in 5 years
10 min escape cylinders for SOC are tested every?
3 years
When does vibe alert go off?
When 25% of full cylinder remains
What’s needed to replace nylon o-ring
1/8 Allen wrench and 1/16 open end wrench
What’s the highest psi in high pressure hose
4500 psi
UAC cap missing?
Placed out of service, tagged and RT 2 and sent to MSU
PRA ?
Reduces operating pressure to 100 psi, before entering the regulators low pressure hose.
What does regulator do?
Controls pressure within the face piece to slightly above atmospheric pressure
What happens if PRA malfunctions?
Air to secondary system, operating pressure to 150 psi and vibe alert to go off. Notify office and leave area
Both primary and secondary systems fail?
Relief valve will activate in the PRA which will rapidly discharge all pressure in excess of 185 psi in atmosphere.
Air cylinder must be partially closed, conserving air
Spray bar consists of
9 holes
HUD consists of how many lights
4 lights
What do lights on HUD mean
Full, 3/4, 1/2, 1/4
Red light on indicates
Low battery
How long will lights stay on when cylinder turned on for for or test
20 sec
When do you immediately leave area. Light color
1 red light flashing rapidly
Pre alarm occurs?
20 sec no movement
When cinder goes into full alarm?
12 seconds after pre alarm starts
