Fire

• Fire is the active principle of burning characterized by heat and light of burning, and is the perceptible phase of burning that includes heat, fuel and oxygen.
• Combustible, Flammable or Inflammable are descriptive of materials that are easily set on fire.
• Combustible Fiber is any readily ignitable and free burning fiber.
• Wet Chemical is a type of fire extinguisher used for Class K fires.
• Class K Extinguisher is used for flammable liquids unique to cooking, such as cooking oils and greases that are vegetable and animal fat-based.
• Flashcard>Fire Point is the sustained fire with an ignition source.
• Auto-ignition is when no ignition source is needed.
• Fire Trap is a building unsafe in case of fire.
• Fire Alarm is any visual or audible signal produced by device or system to warn the occupants of the building or fire fighting elements of the presence of danger of fire to enable them to undertake immediate action to save live and property.
• Fire Hazard is any condition or act which increases or may cause an increase in the probability of the occurrence of fire, or which may obstruct, delay, hinder or interfere with the fire fighting operations and the safe guarding of life and property.
• Fire Lane is the portion of the roadway or the public way that should be kept opened and unobstructed at all times for the expedient operation of fire fighting unit.
• Fire Prevention is term used to indicate measures especially towards preventing the inception of hazardous fire.
• Fire Suppression means that fire fighting action are having an effect towards putting out the fire.
• Fire Control means that the fire has been stopped from spreading or in other words, it is confined.
• Fire Extinguishment means that the fire is out.
• Water is the most abundant, cheapest and best extinguishing agent.
• Flames are the resultant gasses, which on being released, reached incandescence, providing illumination.
• Combustion is the act or process of burning.
• Backdraft is when air is mixed with hot gases and will result in an explosive ignition.
• Flashcard>Fire Triangle Theory consists of three elements necessary to create/produce fire in equal proportion.
• Fire Tetrahedron Theory is the fourth element of fire known as the “Chemical Chain Reaction”.
• Life Cycle of Fire Theory describes the stages/steps wherein fire is created.
• Heat is a form of energy measured in degree of temperature.
• To start a fire there must be a source of ignition, usually heat or a spark.
• Sources of ignition include Open Flame, hot surfaces, sparks, electrical energy and etc.
• Oxygen is a colorless and odorless gas and one of the composition of air that supports fire.
• Composition of air is Nitrogen 78%, Oxygen 21%, Argon 0.93% and Carbon dioxide .04%.
• For a fire to start there must be sufficient supply of oxygen, which is 16% - 21%.
• Fuel is any substance/combustibles which reacts chemically with oxygen and produces flames.
• Fuel Sources include Solid - Wood, Plastic, Paper, Sugar, Sand, Grains, etc.
• Gas includes Propane, Acetylene, Butane, etc.
• Liquid fuels include Gasoline, Kerosene, Turpentine, Alcohol, Paint, Varnish, etc.
• Pyrolysis: The Process of Pyrolysis involves heating the fuel, decomposition takes place, and combustible vapors are produced.
• Free-burning Phase: the second phase of burning in which materials or structures are burning in the presence of adequate oxygen, characterized by fire having involved more fuel, oxygen supply is depleted, heat accumulates at upper area, temperature exceeds 1,300 F (705 C), and area is fully involved.
• Class A Extinguisher: will put out fires in ordinary combustibles, such as wood and paper.
• Non-luminous flame: bluish in color, does not deposit soot because it is a product of complete combustion, and has a higher temperature than luminous flame.
• Premixed flame: example of a Bunsen burner.
• Fire Tetrahedron: Oxygen (oxidizing agent) – material/substance that yield oxygen or oxidizing gases during the process of a chemical reaction.
• Luminous flame: a reddish-orange in color, deposits soot because it is a product of incomplete combustion, and has a lower temperature.
• Turbulent flame: those having unsteady, irregular swirls and eddies.