- How fire is created?
- Who discovered fire tetrahedron?
- What is chemical chain reaction in fire tetrahedron?
- What are the 5 types of fire?
- What is the best defense against fire?
- What are the three chemical reactions in fire?
- Who is responsible for using a fire extinguisher?
- What are the four elements of the fire tetrahedron?
- What is this theory of fire tetrahedron pertains to?
- What are the 4 stages of a fire?
- Can fire break chains?
- What is the most common cause of death in a fire?
How fire is created?
Fire is the result of a chemical reaction called combustion.
At a certain point in the combustion reaction, called the ignition point, flames are produced.
Flames consist primarily of carbon dioxide, water vapor, oxygen, and nitrogen..
Who discovered fire tetrahedron?
W.M. ThorntonIn 1917, W.M. Thornton discovered that there is a relatively constant 13.1 MJ of energy released for every 1 kg of oxygen used in the combustion of most organic materials, regardless of the material.
What is chemical chain reaction in fire tetrahedron?
The fire tetrahedron represents the addition of a component in the chemical chain reaction, to the three already present in the fire triangle. Once a fire has started, the resulting exothermic chain reaction sustains the fire and allows it to continue until or unless at least one of the elements of the fire is blocked.
What are the 5 types of fire?
Classes of fireClass A – fires involving solid materials such as wood, paper or textiles.Class B – fires involving flammable liquids such as petrol, diesel or oils.Class C – fires involving gases.Class D – fires involving metals.Class E – fires involving live electrical apparatus. (More items…
What is the best defense against fire?
PreventionPrevention – Remember prevention is your best defense against fire. the unit to protect the floor from heat and hot coals which might drop out.
What are the three chemical reactions in fire?
The Fire Triangle. Three things are required in proper combination before ignition and combustion can take place—Heat, Oxygen and Fuel.
Who is responsible for using a fire extinguisher?
A ‘responsible person’ such as an owner or landlord are expected to carry out the visual inspections of fire extinguishers to comply with legislation. This person is someone who is qualified by training and experience to conduct service and maintenance of fire extinguishing equipment.
What are the four elements of the fire tetrahedron?
These fire tetrahedron elements include:Oxygen.Heat.Fuel.Chemical reaction.Jan 26, 2017
What is this theory of fire tetrahedron pertains to?
The fire tetrahedron is a slightly more complex model to describe the components needed to ignite and sustain a fire. It is a four-sided geometric representation of the four factors necessary for fire: Fuel – any substance that can combust. Heat – heat energy sufficient to cause ignition.
What are the 4 stages of a fire?
Compartment fire development can be described as being comprised of four stages: incipient, growth, fully developed and decay (see Figure 1).
Can fire break chains?
A fire is an example of a chemical chain reaction. … If there is sufficient oxygen, fuel and heat, it will continue to burn until there is no longer enough of one of these three components to maintain the chemical chain reaction of the fire. For more on chemical chain reactions see UC Davis’ ChemWiki here.
What is the most common cause of death in a fire?
The majority of fire-related deaths are caused by smoke inhalation of the toxic gases produced by fires. Actual flames and burns only account for about 30 percent of fire-related deaths and injuries. The majority of fires that kill or injure children are residential fires.