Extinguishers & Faom Flashcards
How do you know the agent is a clean agent?
It’s approved by the EPA
What are three types water extinguishers?
Pump
Stored pressure
Water mist
What are dry chemical agents used for?
Class A B C
What are the different types of dry chemical extinguishers and handling units?
Regular
Multi purpose
Stored pressure
Cartridge
What are dry powder agents used for?
Class D
Halon agents were replaced by what?
FE-36
FM-200
Class A ratings rate from 1-A through 40-A what does that mean?
Amount of agent
2-A = 2 1/2 gallons
Class B rage from 1-B to 640- B
What does that mean?
1 square foot for each numerical rating for a non expert user
Class K ratings means the agents do what?
Saponify
What approaching a fore using an extinguisher what do you remember?
Approach from the windward side
What is pass?
P- pull pin
A- aim nozzle
S- squeeze the handle
S- sweep
Is natural gas lighter than air?
What percent that makes it’s explosive?
5-15%
Liquid petroleum ( propane) is it lighter than air?
It’s heavier
BLEVE
Boiling liquid expansion vapor explosion
Causes boom
Fire attack is initiated from what floor?
Floor below fire
Staging area for personal and equipment is what floor?
Two floors from fire
Flammable liquids have a flashpoint of what?
Less than 100 degrees
Combustible liquids flash point
Higher than 100 degrees
What important about hydrocarbons?
Do not mix with water
Polar solvents
Mix with water
Do you extinguish if leaking can not be stopped?
No try to contain pooling
What are three ways to identify contents?
Bills of lading
Manifests
Placards
For downed power lines what is the danger zone?
Distance between poles
When entering hazard zone who do you report too?
AO
Accountability officer
Initial attack hose line is in charge of what?
Protect victims Protect main egress Protect interior exposures Imitate extinguishment Operate master streams
Secondary due engine
Water source
Assist
Types of vehicle fires
Commercial
Hazmat vehicles
Passenger
Categories of passenger fire
Engine
Passenger
Undercarriage
How does foam extinguish a fire?
Penetrating
Smothering
Separates
Cooling
Foam must be what?
Proportioned and aerated
Foam concentrate
Raw foam liquid
Foam proportioner
Device used to mix foam and water
Foam solution
Complete product
Finished foam
Portioned and mixed with air
Class A foam is used for what
Ordinary combustibles
Protein foam
Protein based
Fluroprotein foam
Not affected by freezing
Film forming fluoroprotein foam
Affected by freezing
Hand lines used for foam
Solid bore Fog Air aspirating foam nozzle Water aspirating foam nozzle Mechanical blower Trouble shooting
Types of application for foam
Roll on
Bank on
Rain down
