SCBA ++DO MORE, FROM BEGINNING++ Flashcards
(69 cards)
What kind of corrective lenses are required during SCBA use?
- Must not interfere with the good seal
- glasses with temple bars with straps that pass between the face and the seal of the facepiece must not be used
- Each size facepiece maybe equipped with the lens frame kit –the Department will issue corrective lens kits to members that request them
Can contact lenses be worn with the SCBA?
Yes
Can an SCBA ever be used on underwater?
Never
- Submersion will render interoperative
- if it becomes submerge OOS RT-2 to MSU
Where is the date of manufacture listed on the Scott cylinder?
On Scott label- month and year
What is the service life of an air cylinder?
15 years
How often is hydrostatic testing done?
Every five years
After cylinder has been hydrostaticlly tested, where will the date be found to indicate so?
Top of the cylinder
Example: The number 102 will indicate the cylinder was tested in January 2002
How often will 10 minutes escape cylinders used by special operations command units at confined space need to be hydrostatic tested
Every three years
The service duration times for 30,45, and 60 minutes cylinders are determined by a NIOSH breathing machine test simulating an average adult moderate work rate of ______ liters per minute.
40 L per minute
30 minutes cylinder=approx 1200 l
45=1800 l
60=2400 l
How are designated training cylinders identified?
Bluetop and or polymer protective sleeve
**^these cylinders are not to be used for firefighting purposes
The cylinder should be exchanged for one that is full when….
- Prior to operating the remote gauge reads less than full( green area)
- When the remote gauge & HUD leads less than 25%
During inspection of SCBA there maybe a need to tighten or replace the Nylon O-Ring to do so……
Use a 1/8 inch Allen wrench and a 7/16 inch open end wrench
A SCBA with a missing UAC dustcover shall………
Be placed out of service
tag with an RT-2 and to MSU
What side of the backframe is the pressure reducing assembly mounted?
Left
The PRA normally reduces the operating pressure to ___psi before entering the regulators low pressure hose.
100psi
A malfunction of the PRA primary system will automatically direct breathing air into the secondary system. When this occurs the operating pressure will be reduced to____ PSI and cause the vibralert to activate.
150psi
What happens when there is failure of PRA in both the primary and secondary systems?
- Will activate relief valve and PRA discharge all pressure in excess of 185 PSI into the atmosphere
- Cylinder should be partially closed allowing only minimal air to release permitting member to both breathe and conserve air.
What is the function of the low pressure hose?
Conveys breathing air from the PRA to the regulator assembly
It’s the manual shut off switch mounted on top of the regulator assembly is not pressed a full 45 minute cylinder can be depleted in approximately_______.
4 minutes
The EZ Flow II regulator is made of……
High density plastic that won’t dent
What is the color is the purge valve and where is it located on the regulator?
Red left side
Where is the Vibralert alarm housed?
Within the regulator
Does the vibralert and HUD work independently or together?
Independently and may not activate at precisely the same time
What does the heads up display consist of?
- Four rectangular lights
- one round red light (low battery)
