Lesson 2: Fire Hazards: Understanding & Prevention Flashcards
ANY ACTIONS, MATERIALS, OR CONDITIONS THAT MIGHT INCREASE THE SIZE OR SEVERITY OF A FIRE OR THAT MIGHT CAUSE A FIRE TO START ARE CALLED FIRE HAZARDS
Fire Hazard
What are the four elements of fire
Heat, Fuel, Oxygen, Chemical Reaction
COMBUSTION REPRESENTS A SELF SUSTAINING RUN OF REACTIONS CONSISTING OF PHYSICAL AND CHEMICAL TRANSFORMATIONS
Fire
REQUIRES FAVORABLE STARTING CONDITIONS, WHICH ARE GENERALLY A SUFFICIENT HEATING UP OF THE SYSTEM THAT COVERS THE INITIAL ENERGY DEMAND
OF THE CHAIN REACTION OF BURNING
Ignition
CLASS OF FIRE THAT ARE LIQUIDS OR GAS SUCH AS ALCOHOL, ETHER, GASOLINE, OR
GREASE
Class B
METALLIC SUBSTANCES SUCH AS SODIUM, TITANIUM, ZIRCONIUM, OR MAGNESIUM
Class D
SOLID MATERIALS SUCH AS WOOD OR PAPER, FABRIC, AND SOME PLASTICS
Class A
ELECTRICAL FAILURE FROM APPLIANCES, ELECTRONIC EQUIPMENT, AND WIRING
Class C
GREASE OR OIL FIRES SPECIFICALLY FROM COOKING
Class K
MOST COMMON OF THE 5 DIFFERENT CLASSES OF FIRES. THEY OCCUR WHEN COMMON COMBUSTIBLE MATERIALS LIKE
WOOD, PAPER, FABRIC, TRASH, AND LIGHT PLASTICS CATCH FIRE
Class A Fires
Other term for Class A Fires
Ordinary Fires
IT’S BEST TO PUT OUT A CLASS A FIRE QUICKLY BEFORE IT SPREADS USING ________ OR _________
WATER OR MONOAMMONIUM PHOSPHATE
INVOLVE FLAMMABLE LIQUIDS AND GASES, ESPECIALLY FUELS LIKE PETROLEUM OR PETROLEUM-BASED PRODUCTS SUCH AS GASOLINE, PAINT, AND KEROSENE. OTHER GASES THAT
ARE HIGHLY FLAMMABLE ARE PROPANE AND BUTANE
Class B Fires: Liquids and Gases
THE BEST WAY TO DEAL WITH CLASS B TYPE OF FIRES IS BY _______ & ________
SMOTHERING THEM OR REMOVING
OXYGEN USING FOAM OR CO2 FIRE
SUPPRESSION EQUIPMENT
THIS FALL UNDER CLASS C AND ARE COMMON IN FACILITIES THAT MAKE HEAVY USE OF ELECTRICAL EQUIPMENT, BUT THEY CAN OCCUR IN A WIDE RANGE
OF INDUSTRIES.
Electrical Fires
MIGHT BE AN OBVIOUS RISK AREA FOR
CLASS C FIRES. THEY MUST HAVE SAFEGUARDS IN PLACE TO DEALWITH ELECTRICAL FIRES
Data Centers
ARE NOT AS COMMON AS THE OTHER CLASSES, BUT THEY DO REQUIRE SPECIAL
ATTENTION BECAUSE THEY CAN BE ESPECIALLY DIFFICULT TO EXTINGUISH
Class D Fires
Metallic Fires involves flammable materials that are commonly occurring in _______
Laboratories
THIS TYPE OF FIRE INVOLVE VEGETABLE OILS, ANIMAL OILS, OR FATS IN COOKING APPLIANCES. EXTINGUISHERS WITH A K RATING ARE DESIGNED TO EXTINGUISH FIRES INVOLVING VEGETABLE OILS, ANIMAL OILS, OR FATS UTILIZED IN COMMERCIAL COOKING APPLIANCE
Class F Fires
Other term for Class F Fires
Frying Fats
Common causes of Wildfires
Lightning, Human Activity, Climate Conditions
Effects of Wildfires
Loss of Lifem Destruction of Landm Air Pollution
Prevention of Wildfires
Controlled Burns, Firebreaks, Public Awareness
Most of these fires occur outside, but most of the associated deaths, injuries, and losses occur in structures, particularly in homes
Arson and Intentional Fires
