(1) Vol 3 SCBA Flashcards
The backpack is designed to transfer ___% of the load to hips
60
The backpack harness and cylinder weight approximately ____ lbs.
30.25
The air cylinder has a maximum working pressure of _____ psi
4,500
When full, the 45 min air cylinder contains ____ cubic feet of air
65.6
When full, the 60 min air cylinder contains ____ cubic feet of air
87
The air cylinders time rating is classified at a user rate of ___ liters per minute.
40 liters
The air cylinder is hydrostatically tested every ___ years
5
The department designator for newer bottles is “LFD” imprinted on the ___ inch luminescent band.
2”
The first stage regulator lowers cylinder air pressure to a nominal ___ psi
115
The low pressure SCBA audible alarm activates at ____ to ____ psi.
1035-1215 psi (25% left in air bottle)
Once the low pressure SCBA audible alarm activates, the audible alarm will continue to sound UNTIL the air pressure drops below ___ psi
200
When the pressure drops below 50% of cylinder capacity, the HUD LED representing 1/2 cylinder capacity starts to flash, and continues to flash for a short time (approximately __ seconds) before returning to continuously lit.
20 sec
When pressure drops to ____%, the ___ on the HUD will turn RED and begin to flash between 1035 and 1215 psi.
25%
1/4 LED
When the pressure drops to ___% of cylinder capacity, the red 1/4 HUD LED begins to flash noticeably faster and continues flashing in this manner until air pressure drops below approximately ___ psi,at which time the display will turn off
- 10%
- 200 psi
There are how many battery status indicators amber LEDs on the SCBA?
3
HUD
Backpack harness
PASS device
The amber LED on the Backpack and PASS device will flash once every ___ seconds to indicate a USABLE battery condition
10
The amber LED on the Backpack and PASS device flashes every ___ seconds to indicate a LOW battery condition
2
Turning the bypass knob on the second stage regulator _______ (clockwise or counterclockwise?) will provide a constant air flow.
Counterclockwise
On the PASS, depress the red “ALARM” button for __ to __ sec to put into full alert.
1 to 2
Lack of movement for ___ seconds will activate the STAGED pass alarm with LED lights alternating what colors?
- 20 sec
- Green and red
After 20 seconds of no movement the “STAGED” PASS alarm begins. Volume then increases every __ seconds of inactivity with FULL ALARM being reached at ___ to ___ seconds.
- 5 sec
- 30-45 sec
The buddy breather system consists of ___ inch intermediate pressure hose with a “Y” block
39”
For the VAS button, one depression yields push to talk feature or depressing the button ___ times will yield hands free continuous use. Depressing the button ___ additional times will turn unit off.
2 and 2
Which member completes the connection of their buddy breathing hose to the buddy breathing “Y” block?
The member out of air
Which member leads the buddy breathing team toward a safe area after connection?
The member supplying air
Repairs by members are limited to what two things?
Batteries and the 1st stage regulator “o” ring
The air pressure indicators on each side of the cylinder valve should read with in ____ lbs of each other
500
One of the daily checks after opening the air cylinder valve is to then close the air cylinder valve and check the air pressure indicated on pressure gauge for approximately ___ seconds, watching for a drop in PSI. A drop in PSI indicates a leak in the system.
20 seconds
When full, the 45-minute air cylinder has ____ liters of air supply
1,800
The RIC bag contains a first stage pressure reducer with ___ feet of intermediate pressure hose
10
The RIC kit has a total of ____ ft of drop line rope
150’
How often should the RIC kit be inspected?
Daily and after use
The SCBA PASS alarm provides between ___ to ___ decibels at full alarm
97-103
Minimum requirement is 95 decibels
The SCBA consists of how many major component groups?
10
The battery pack located right lower side of SCBA harness uses how many Duracell “C” size batteries?
4
The SCBA cylinder gauge is graduated in ____ psi increments ranging from 0 to _____ psi
1000 psi increments
6000 psi
SCBA buddy breather system:
When connected, the SCBA with the HIGHER pressure will supply both breathers until the ____(higher/lower?) psi bottle is exhausted, then it switches to the ____ (higher/lower?) psi bottle.
Higher
Lower
The SCBA VAS system requires what size of batteries and how many?
3 AAA batteries
BELOW what PSI do you change out the SCBA air cylinder for a new one?
BELOW 4000 psi
45 min SCBA air cylinder use:
During high demands, it is possible to use ___ liters per minute, reducing cylinder duration to ___ minutes total.
100 liters
18 minutes
RIC kit:
The intrinsically safe flashlight secured by an integrated flashlight holder may be used hands free or removed from the kit for use. Uses ___ “C” size batteries.
3
Part of cleaning the SCBA face piece is to disinfect the facepiece in a warm suitable sanitizing solution, such as a “hypochlorite solution” by mixing ___ tablespoons of chlorine bleach with 1 gallon of water.
2
Most damage and defects to the SCBA are caused by _____ or _____
foreign matter or careless handling
The backpack has three integrated carrying handles with carabiner attachment points rated at ____ lbs
1000
No breathing apparatus offers complete protection in atmospheres containing SKIN ABSORBING gases such as:
-hydrocyanic acid
-hydrogen cyanide
-methyl bromide.
