- Can a bomb put out a fire?
- What does a fire release?
- What are the elements of fire?
- What is the second stage of fire development?
- What are the 3 stages of a fire?
- What stage of fire does flashover occur?
- What is a fancy word for fire?
- What is tetrahedron of fire?
- How can you tell where a fire started?
- What are the main causes of fire?
- What are the 5 stages of fire?
- What is the best defense against fire?
- What are the signs of a flashover?
- What causes a flashover in a fire?
- What should you not do in case of a fire?
- What is the principle of fire?
- How do you fight a fire?
Can a bomb put out a fire?
A bomb containing an explosive and a fire extinguishing chemical so that the bomb can be exploded within a fire and extinguish the fire flames; the bomb including a glass cylinder that can be readily fragmented so to disperse its chemical content into all directions and the glass cylinder having extending fins so to ….
What does a fire release?
Fire is the rapid oxidation of a material in the exothermic chemical process of combustion, releasing heat, light, and various reaction products. … The flame is the visible portion of the fire. Flames consist primarily of carbon dioxide, water vapor, oxygen and nitrogen.
What are the elements of fire?
Oxygen, heat, and fuel are frequently referred to as the “fire triangle.” Add in the fourth element, the chemical reaction, and you actually have a fire “tetrahedron.” The important thing to remember is: take any of these four things away, and you will not have a fire or the fire will be extinguished.
What is the second stage of fire development?
As we move through the phases of a fire, we come to the second stage – growth. The growth of a fire will be affected by the structure of the building and the fuel available. The growth phases are characterised by the following indicators: there are sufficient oxygen and fuel to support the ongoing growth of the flame.
What are the 3 stages of a fire?
Stages of fireIgnition: Fuel, oxygen and heat join together in a sustained chemical reaction. … Growth: With the initial flame as a heat source, additional fuel ignites. … Fully developed: Fire has spread over much if not all the available fuel; temperatures reach their peak, resulting in heat damage.More items…
What stage of fire does flashover occur?
NFPA 921 defines flashover as, “A transitional phase in the development of a compartment fire in which surfaces exposed to thermal radiation reach its ignition temperature more or less simultaneously and fire spreads rapidly throughout the space resulting in full room involvement or total involvement of the compartment …
What is a fancy word for fire?
What is another word for fire?blazeinfernofirestormignitiontinderbonfirecharringflarehearthholocaust22 more rows
What is tetrahedron of fire?
A tetrahedron can be described as a pyramid which is a solid having four plane faces. Essentially all four elements must be present for fire to occur, fuel, heat, oxygen, and a chemical chain reaction. … Each of the four sides of the fire tetrahedron symbolise the Fuel, Heat, Oxygen and Chemical Chain Reaction.
How can you tell where a fire started?
Investigators are able to determine the original location of a fire through clues such as char patterns, “direction of melt,” and heat shadows. These burn patterns often point to the source of the fire in tell-tale patterns. For example, fire burns upward, in a V-shaped pattern away from the starting point.
What are the main causes of fire?
Below are some of the most common causes of house fires, and some tips to take precautions.Cooking equipment. … Heating. … Smoking in bedrooms. … Electrical equipment. … Candles. … Curious children. … Faulty wiring. … Barbeques.More items…•
What are the 5 stages of fire?
fire investigation – The five stages of fire growth are incipient free burning flashover post flashover and decay The incipient phase is characterized | Course Hero.
What is the best defense against fire?
Your best defense against fire damage is to ensure that staff knows what to do in the event of a fire so they can respond quickly….All employees must know:Where exits and fire alarm pull stations are located.Evacuation routes.Where fire extinguishers and fire hoses are located.How to use extinguishers and fire hoses.
What are the signs of a flashover?
Signs of room flashover include:High heat conditions or flaming combustion overhead.The existence of ghosting tongues of flame.A lack of water droplets falling back to the floor following a short burst fog pattern being directed at the ceiling.More items…
What causes a flashover in a fire?
A flashover is the near-simultaneous ignition of most of the directly exposed combustible material in an enclosed area. … The radiated heat from this layer heats the surfaces of the directly exposed combustible materials in the room, causing them to give off flammable gases, via pyrolysis.
What should you not do in case of a fire?
10 things not to do in a fireDon’t install smoke alarm detectors. … Pop upstairs to retrieve heirlooms, passports and pets. … Open doors that have smoke billowing from the joints. … Throw water on a chip pan fire. … Try and escape using a Lift. … Jump from an upstairs window. … Hide in a cupboard or under the bed. … Smoke cigarettes in bed.More items…•
What is the principle of fire?
Thus, there are three conditions essential for fire: fuel, oxygen, and heat (or ignition source). These three conditions are often represented as the fire triangle. If one of these conditions is missing, fire does not occur; and if one of them is removed, fire is extinguished.
How do you fight a fire?
In order to fight a fire, you must take out any one of the fire elements. The most common method is to use water to put out the fire. The water takes away heat by cooling the fire. Water also smothers the fire, taking away oxygen.