- What can cause the most dangerous fire?
- What is the best Defence against fire?
- What 3 things are necessary for a fire to start?
- What is the most common way a fire spreads?
- How does a house fire spread?
- What is the first thing you should do in the event of fire?
- What are 4 examples of convection?
- Why do fires spread so quickly?
- Can concrete spread fire?
- What are the three ways fire can spread?
- How does fire spread through convection?
- What stops a fire from spreading?
What can cause the most dangerous fire?
Heat Convection Spread of fire by convection is very dangerous and causes the greatest number of deaths and injuries..
What is the best Defence 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 3 things are necessary for a fire to start?
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 most common way a fire spreads?
Convection is the most common cause of fire spreading in domestic and commercial buildings. Conduction refers to the spread of fire through direct contact between materials. Some materials are better conductors of heat than others, metal is a good example.
How does a house fire spread?
Fire can spread through your house very quickly. … Fires spread by consuming fuel and oxygen. They travel faster through open areas than they do through closed doors and walls. HVAC ventilation systems offer a conduit through which smoke and flames can travel from room to room or floor to floor.
What is the first thing you should do in the event of fire?
Immediately pull the nearest fire alarm pull station as you exit the building. When evacuating the building, be sure to feel doors for heat before opening them to be sure there is no fire danger on the other side. If there is smoke in the air, stay low to the ground, especially your head, to reduce inhalation exposure.
What are 4 examples of convection?
Examples of ConvectionBoiling water – The heat passes from the burner into the pot, heating the water at the bottom. … Radiator – Puts warm air out at the top and draws in cooler air at the bottom.Steaming cup of hot tea – The steam is showing heat being transfered into the air.Ice melting – Heat moves to the ice from the air.More items…
Why do fires spread so quickly?
A fire will burn faster uphill. This is because the flames can easily reach more unburnt fuel in front of the fire. Radiant heat pre-heats the fuel in front of the fire, making the fuel even more flammable. For every 10˚ slope, the fire will double its speed.
Can concrete spread fire?
Concrete, in itself, does not burn. It can be affected by heat and crack, break or otherwise fail in its integraty, but it cannot sustain a flame. … When building from concrete, especially those of a high-rise or large/wide nature, each ‘box’ had to be a sealed unit designed to last 1 hour in a fire.
What are the three ways fire can spread?
A fire spreads by transferring heat energy in three ways: Radiation, Convection, and Conduction.Radiation.Convection.Conduction.
How does fire spread through convection?
Fire Spread By Convection This is the main way in which a fire spreads throughout a house. When a fire is burning large amounts of hot gases and smoke are produced. These will travel through the house in hot air currents often igniting more combustible materials causing the fire to spread.
What stops a fire from spreading?
A fire needs three elements – heat, oxygen and fuel. Without heat, oxygen and fuel a fire will not start or spread. A key strategy to prevent fire is to remove one or more of heat, oxygen or fuel.