Fire Fighting Flashcards
What is class A fire
Solids
Woods, paper, cloth, trash, canvas
What is a class B fire
Liquids/gasses
Propane, gasoline
What is a class C fire
Electrical
Energized electrical equipment
What is a class D fire
Combustible Metals
Aluminum, titanium, metals ending in Ium
What is a class K fire
Oil fats and vegetable oil
Found only in galleys in deep fryers
(600 degree ignition)
What are the three types of heat transfer
Conduction
Convection
Radiation
What is conduction
Through another substance like boiling water
What is convection
Heat on air currents
Natural or mechanical heat generally rises
Radiation
The heat given off directly from the flame
Only moves in straight lines
What are the steps in reporting the fire
F - find the fire
I - inform the bridge or appropriate person
R - restrict the fire to the area it is in
E- extinguish the fire and all embers
What does on scene command do
Takes overall command of situation
Implements the chosen fire suppression strategy and guides fire team
Ensures the safety of emergency
Fire detection systems
Smoke detectors
Heat
Flame
Class A bulkhead does what
Prevents passage of flame and smoke for one hour
What does class B material doors do
Prevents the passage of flame (flame only) for 30 mi s
Class C barriers have no requirements
They are curtains or doors that are not fire proof/resistant
What are watertight doors made for
Designated to section of portions of the vessel to:
Contain flooding and prevent fire
Fire prevention
Take first action
Nature of fire
What can burn/what is burning
Know your equipment and how to use it
What are the 4 methods of extinguishing a fire
Cooling (attacks heat)
Smothering (attacks oxygen)
Chain breaking (uninhibited chain reaction)
Fuel removal (remove agent)
What kind of extinguishers are used for class A
Water - large regular red
Dry Chemical - multipurpose has a gage hat is pressurized
Fm200
What are the extinguishers used for class B fires
CO2 Foam Dry chemical - ordinary (cartridge operated) & multipurpose (has a gage is pressured) Halon FM 200
What extinguishers work on class C fire
CO2
Dry chemical - ordinary (cartridge operated) & multipurpose (has a gage is pressurized)
Halon
FM200
What extinguishes class D fires
Dry powder ONLY
What extinguishers eliminate class k fires
Dry chemical (multipurpose, has a gage is pressurized) Wet chemical
Water extinguisher
Cools/ steam which expands at 1700 to 1 smothers
Class A
CO2 extinguisher
Smothering agent
Class B & C
Foam extinguisher
Smothering
Class B
Dry chemical extinguisher
Chain breaking agent (2 canisters) - ordinary class B &C cartridge operated (Has gage) - multipurpose class A, B & C and class K
Dry powder extinguisher
Smothering
Class D only
Halon extinguisher
Chain breaking
Class B & C
They are phasing this out cause it isn’t good for the environment
FM 200 extinguisher
Replacing halon
Class A, B & C
What are the two different kinds of sprinklers
Wet & dry
Characteristics of a wet sprinkler
Automatic and water is ready to go
Wet automatic system uses fresh water
Water always flows
Dry manual characteristics
Open a common valve - not ogle
No water in system
A valve must be turned on for water to flow
Name kinds of fixed systems
Dry chemical fixed
Wet chemical fixed
CO2 flood is large and takes oxygen out of the room
High pressure is high fog
Uses water at a high pressure pump or bank of compressed nitrogen at atomized sprays of water directed at fire
What does PASS stand for
P - Pull pin/pull the safety wire
A - Aim the nozzle/squeeze, test as approaching sweep
S - squeeze the handle
S - sweep at the base of the fire
Also test the fire extinguisher after pulling the pin
CO 2 extinguisher parameters
Order less, colorless, tasteless gas 15 lbs Stored as liquid discharged as gas Smothering Ground to prevent static discharge Do not grasp horn (frost bite) -110 degrees Causes "cold shock" to electronics Pressurized at 850 dpi Maintain control Hydrostatic ally tested every 5 years 3-8 feet range If the extinguisher weighs less than 10% of the full weight it is out of commission
What are a couple safety concerns when putting out a fire to be aware of
Never turn your back on fire
Keep your back to the exit
Keep your back to the wind
Extinguishers are “first aid” only
What are the two different nozzles for fire hose
Combination and vari
What are the 2 sizes of fire hose
1 1/2” and 2 1/2”
What is the standard length of a fire hose
50 feet
What are the two flow rates for combo hose
- 5 - 55 GPM @ 100psi
2. 5 - 106 GPM @ 100psi
What are the hose flow rates for variable hose
- 5 - 95 GPM @ 100psi
2. 5 - 250 GPM @ 100psi
What are the two attack methods for a fire
Attach and indirect
What are fire station requirements
Fire station # Control valve Nozzle Fire hose - double jacketed rubberlined Spanner wrench - anything else is extra
What is a spanner wrench used for
To loosen the cup links - only to loosen them
What is ventilation used for
Is action taken to release combustion products trapped with Ina vessel and vent them to the atmosphere outside the vessel and replace wi fresh air
Negative ventilation does what
Pulls air out of a space
What does positive ventilation do
It flows air into a space
Hydraulic ventilation
Directing a fire stream fog pattern out any available opening, smoke and gases are pulled out with effective water coverage… Must be %80 to be effective
What does SCBA stand for
Self contained breathing apperatis
What does IDLH stand for
Immediately dangerous to life and health
What is minimum operating pressure for SCBA gear
4000 is he minimum in service pressure
What is the full pressure for SCBA
4500 is a full SCBA gear
At 1125 the gear will vibrate and a metallic bell will sound, how much time will this allow
3-5 minutes
This is 1/4th full
What does EBSS stand for
Emergency breathing survival system
What are the two different names of searches
Primary search & secondary search
What is flash over
Everything in space reaches ignition temp
What is backdraft
Intro of oxygen in a superheated atmosphere causes a violent explosion
What do you do immediately no matter how small or large the fire is when you find it
Raise the alarm immediately
What are individually dogged
It is a watertight door that is manually opened and closed and are held in place by slip hinges and usually six, eight or sometimes ten locking levers or bolts called dogs
Quick-acting watertight
Activated by a central mechanism
What are the three things the coast guard requires of a co2 sprinkler system
A pre-release alarm A. It may be audible, visual or both B. It must have a minimum of 20 seconds warning A remote, manual release Charts/diagrams of the system
When co2 is being released what are the steps that need to be taken before it is released
Warn all personnel
Shut down ventilation to the area
Activate the co2 system (the audible/visible alarm should sound automatically)
How long after co2 sprinkler system is set off can you open the compartment
Several hours to several days to make sure that the fire is completely out and to allow time for the area to cool down
What is the time frame a compartment can be opened after a co2 sprinkler is set of dependent on
What was burning
How much was burning
How long did it burn
What materials were in the compartment that could be heated
What must the oxygen level stay at in the space after a co2 sprinkler fired in order for there to be no flaming combustion
16% or lower the ace must remain tightly sealed and the ventilation must remain secured
If the compartment is opened too soon a re-flash may occur
Never be in a big hurry to rush into an area that has been flooded with co2
Before entering?
Make sure it is well ventilated and tested before entering without the use of protective reaching apparatus
What is halon made up of
Fluorine
Chlorine
Bromine
Iodine
It’s hazardous
What are the safety procedures using fixed system
Ensure that proper authorization has been granted to use the system
Only trained personnel are to operate the system
A complete crew muster must be taken
All crew members must be instructed in the evacuation procedures to be taken when the alarm is activated
What do you do with an extinguisher that does not have a label
It should be tagged with what is wrong
taken out of service
Replaced with an extinguisher with a label
Name personal protective clothing
Coats & pants Boots Gloves Helmet Eye protection Proximity suit
What are the three components to fire
Oxygen
Heat
Fuel
