Fire Prevention & Protection Flashcards
What causes death from fires?
- Direct Contact
- breathing toxic gases and smoke
- suffocation due to oxygen deprivation
What are sources of fire/explosion?
- flammable, & combustible liquids
- Flammable liquids are more dangerous because they have a flashpoint under 100°F and can produce ignitable mixtures at a lower temperature
- spontaneous combustion
- Heat from hot surfaces
- Flammable gases, reactive gases, toxic gases, liquefied compressed gases, etc,
- chemicals used in: process, by-products of a reaction, or in final process products
- spray finishing (Spray booth, ventilation, storage & handling)
- Powder coating
- Dip tank
- oil Quenching
- Flammable, and combustible liquids
- Spontaneous combustion
- Heat from hot surfaces
- Degreasing
- Ammonia,
- Electroplating
- gas nitriding
- Riding, polishing and buffing
- Petroleum, refineries
- Shell molding
How do you reduce fire hazards?
The key is prevention
- prohibit smoking near possible fuels
- Store fuels away from electrical sparks. Example: from tools, equipment, wiring, or lightning.
- Clean up flammable liquid spills
- Keep work areas free from extra supplies of flammable material
- local and state fire codes limit the amounts of flammable and combustible liquids that can be stored in various locations
What is a type of storage container?
Safety can:
* a listed container of under 5.3 gallons
* a screen or strainer in each fill and pour opening
* a spring closing lid and spout cover
What is a storage cabinet?
- we’re great quantities of liquids are needed
- to prevent fire from reaching the contents for 10 minutes
- Cabinet meet specific construction (sheet steel, and wooden)
- Under 60 gallons category, one, two, three: under 120 gallons category four maybe stored
- “Flammable – keep fire away”, sign
- Venting: not required under OSHA/NFPA. But state and local authorities having jurisdiction may require venting .
What are storage areas?
- in an approved cabinet in a cool, well ventilated area to avoid pressure buildup and vaporization
- at least one fire extinguisher in the area
- Large storage supplies: a fire protection system installed and must be approved for this use
What are some precautions to take with flammable liquids?
- some flammable liquids: benzene, toluene gasoline, xylene
- Tends to accumulate a static electric charge
- bond metal dispensing and receiving together before pouring
What is passive fire protection (PFP)?
components used to compartmentalize a building in order to keep a fire from spreading or resist the initial ignition
What is active fire protection?
- action to work/action in order to put out a fire
How do you work together in fire protection?
alerting people inside of a fire and safely containing the fire so that peopl may evacuate and/or try to suppress the fire
What are the different classes of fire?
Class A, B, C, D, K
What is a class A fire?
fire involves ordinary combustible materials such as paper, wood, and textile fibers
What is a class B fire?
fire involving flammable liquid, such as gasoline, thinners, oil-based paints, and greasers
What is a class C fire?
fire involving electrically energized equipment
What is a class D fire?
fire involving combustible metals, such as magnesium, sodium, potassium, titanium, and aluminum