Quick Answer: What Are The Three Elements Of The Fire Triangle?

How many classes of fire are there?

four classesThere are four classes of fires: Class A: Ordinary solid combustibles such as paper, wood, cloth and some plastics..

What are the 4 types of fire extinguishers?

There are 5 main fire extinguisher types – Water, Foam, Dry Powder, CO2 and Wet Chemical.

What are the six classes of fire?

There are 6 different classes of fire, and each should be attacked in a different way.Class A (Solids) Class A fires are fires involving solids. … Class B (Liquids) Class B fires are fires involving liquids. … Class C (Gases) … Class D (Metals) … Electrical Fires. … Class F (Cooking Fats & Oils)

What is the best defense against fire?

Prevention – Remember preventionPrevention – Remember prevention is your best defense against fire. the unit to protect the floor from heat and hot coals which might drop out.

When all 3 elements of the fire triangle combine what can occur?

Combustion; fuel; oxygen. The fire triangle is used to show the three elements that when present together can cause a fire to start. In the mythology of virtually every culture, fire is a sacred substance that gives life or power. A fire naturally occurs when the elements are combined in the right mixture.

What are the three components of the fire triangle quizlet?

A rapid reaction between oxygen and fuel that produces thermal energy. A material that releases energy when it burns. What are the three points of the fire triangle? Fuel, oxygen, and heat.

How does the fire triangle work?

The fire triangle is used to show the three elements that when present together can cause a fire to start. These three ingredients are fuel, heat and oxygen, under all circumstances they should be kept apart to avoid a fire starting.

What are the 4 stages of fire?

Compartment fire development can be described as being comprised of four stages: incipient, growth, fully developed and decay (see Figure 1). Flashover is not a stage of development, but simply a rapid transition between the growth and fully developed stages.

Can an explosion put out a fire?

The blast knocks the flames off the fuel source, putting out the fire. In the case of wildfires, Doig says, an explosion could knock the fire out of intensely burning trees and onto the ground, where firefighters could more easily reach it. … “As soon as the flame doesn’t have access to fuel anymore, it stops burning.”

What is a Type K fire?

A Class K fire extinguisher is used on fires involving cooking media (fats, grease, and oils) in commercial cooking sites such as restaurants. … Saponification takes place when alkaline mixtures, such as potassium acetate, potassium citrate, or potassium carbonate, are applied to burning cooking oil or fat.

How do you starve a fire?

Starvation is achieved by removal of the fuel burning in the fire. Any combustible material can be removed or gas or fuel flows shut off. Fig 15:2 Specific methods of extinguishing fires often involve a combination of more than one of the three principles.

How do you break the fire triangle?

Reducing heat on wildfires may be accomplished in two ways: cooling with water, foam, dirt, or scattering the available fuels to reduce the effect of radiant heat. Water or dirt should be directly applied on the fuels being consumed to reduce fuel temperature.

What are the three things fire needs to burn?

Fire needs three things to burn:Heat, which could be from lightning, the sun, or radiant heat from a heater.Fuel, which could include wood, paper, leaves, gas or petrol.Oxygen (air)

What are 5 classes 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 phase of fire?

By most standards including the International Fire Service Training Association (IFSTA) there are 4 stages of a fire. These stages are incipient, growth, fully developed, and decay.

How does the fire triangle help you control fire?

The triangle illustrates the three elements a fire needs to ignite: heat, fuel, and an oxidizing agent (usually oxygen). A fire naturally occurs when the elements are present and combined in the right mixture. A fire can be prevented or extinguished by removing any one of the elements in the fire triangle.

What do u need for a fire?

The sides of the triangle represent the interdependent ingredients needed for fire: heat, fuel and oxygen.Heat. A heat source is responsible for the initial ignition of fire, and is also needed to maintain the fire and enable it to spread. … Fuel. Fuel is any kind of combustible material. … Oxygen.

What is the start of a fire called?

The small pieces of wood you use to start a fire are called kindling. When you go camping, you can gather kindling, little twigs and branches, to use in a campfire.

Which of the following are possible sources of fuel in the fire triangle?

A fire needs a fuel source in order to burn. The fuel source can be anything that is flammable, such as wood, paper, fabric, or chemicals. Once the fuel element of the fire triangle is removed, the fire will go out.

Which of the following would be classified as a Class C fire?

Class C fires are fires involving energized electical equipment such as computers, servers, motors, transformers, and appliances. Remove the power and the Class C fire becomes one of the other classes of fire.

What is tetrahedron of fire?

Four elements, also known as the fire tetrahedron, must be present in order for a fire to exist. These fire tetrahedron elements include: Oxygen. Heat. Fuel.