DC Flashcards
Damage control Officer
CDR Harry
Damage control assistant (DCA)
LCDR Hoffman
Assistant Damage control assistant ? (ADCA)
CWO2 Barfield
Ships Fire Marshall
ENS Stephens
Class A fire
- White smoke , anything ash producing.
- agents : FM/CO2 for small fires
- burnables: paper,clothes,Fiberous texiles
Class B fires
- black smoke
- DFM,JP5,Lube oil,hydraulic fluid
- Agents: AFFF,PKP,and Halon 1301
Class C fires
- arcs and sparks, white smoke
- burnables: energized electrical equipment.
- Agents: CO2/FM in fog pattern
Class D fires
- combustible metals at 1400 degrees F.
- burnables: magnesium,titanium,powdered aluminum.
- Agents : jettison/AFFF to cool
Fire triangle
Heat
Oxygen
Fuel
Stages of a fire
Growth
Fully developed
Flash over
Decay
P100
Rated at 100 GPM at 83psi with a 20ft suction lift
Primary and secondary use of P100
Primary:firefighting
Secondary: dewatering
Hours of operation for P100
2.75 hours of operation
What kind of fuel does P100 use
JP5 and DFM
What are standard firefighting hoses ?
- 50 feet
- 1.5” and 2.5”
PECU
Portable exothermic cutting unit
What is the pecu used for
Used to access difficult spaces to indirectly combat casualties / rescue personnel
How is the pecu powered ?
Battery powered
How is pecu driven ?
Oxygen driven
What are 4 vari nozzle patterns ?
Wide angle fog
Narrow angle fog
Solid stream
Flush
GPM inside skin of ship
95 GPM
GPM for outside Skin of ship ?
125 GPM
NFTI
Navy firefighting thermal imager
Who uses the NFTI
The team leader uses the NFTI to identify the seat of the fire or hot spots .
What kind of NFTI onboard
K90 Talisman
NFTI can’t see through ?
Glass
2 battery types for NFTI
- Rechargeable : lasts 4.85 hours
- AA battery: lasts 3.05 hours
Different fire extinguishers
- PKP
- CO2
- AFFF
Pounds/distance/seconds for PKP Fire extinguishers ?
- 18lbs/19Ft/10 sec
- 27lbs/21Ft/11 sec
Pounds/feet/seconds for CO2
15lbs/4-6ft/45 seconds
Gallons/feet/seconds for AFFF?
2 1/2 gal/15Ft/55-65 seconds
SCBA
Self contained breathing apparatus
Type of scba bottles
Carbon fiber bottles . And they are grey
2 size bottles
- 30 min.
- 45 min.
Who use the 30 min. Bottles
Investigators, gas free engineers, and electricians
Who use the 45 min. Bottles
Scene leader Team leader Nozzle man Accessman Hose man Plug man Boundaryman
All SCBAs are rated at what psi ? And what grade air?
4500 psi and grade D air
What is the minimum operating pressure for SCBA?
4000 psi
The first stage regulator is reduced to what pressure
100 psi
The second stage regulator is reduced to what pressure?
.05 psi
Ways to desmoke ?
Portable
Natural
Installed
Vari nozzle technique
Portable desmoking example
Ram fan/box fan
Natural desmoking example
HB Doors
Installed desmoking example
Pump rooms
Vari nozzle technique desmoking example
Wide V pattern
Box fan
- 115V
- rated at 3200CFM
- use a smoke curtain and four bar in tandem with fan
Ram fan
- fire main
- rated at 2000CFM at 150 psi ( max is 3250CFM at 250 psi)
- attach the grounding clamp to bare metal to prevent static build up
- use with trunks to direct toxins and smoke overboard
WSOA
Water smoke overboard apparatus
AFFF
Aqueous film forming foam
Ratio for AFFF
94% sea water and 6% AFFF
Ways to operate AFFF
Push button ( remote) SOPV Motor controller ( local)
How many AFFF stations
20 stations
10 STBD and 10 Port
- all on the 2nd deck
AFFF tank capacity ? What’s it made of ?
- Up to 600 gallons
- copper/nickel : 90/10