What happens if a fire crew opens the door on a fire without understanding ventilation?

All of these experiments were designed to examine the first ventilation actions by an arriving crew when there are no ventilation openings. It is possible that the fire will fail a window prior to fire department arrival or that a door or window was left open by the occupant while exiting.

What happens when you call firefighters?

What Happens When Firefighters Get A Call? When the fire station receives a call, it will then alert the appropriate firefighters. This is usually done via a broadcast alert system within the fire station and on the firefighter’s radios. This usually means an alarm or tones go off throughout the station.

Why do they wait to put water on fire?

Using water is one common method to extinguish a fire. Water extinguishes a fire by cooling, which removes heat because of water’s ability to absorb massive amounts of heat as it converts to water vapor. Without heat, the fuel cannot keep the oxidizer from reducing the fuel in order to sustain the fire.

What is venting a fire?

Ventilation is a part of structural firefighting tactics, and involves the expulsion of heat and smoke from a burning building, permitting the firefighters to more easily and safely find trapped individuals and attack the fire.

What does the term flashover denote?

A flashover is the near-simultaneous ignition of most of the directly exposed combustible material in an enclosed area. When certain organic materials are heated, they undergo thermal decomposition and release flammable gases. An example of flashover is the ignition of a piece of furniture in a domestic room.

Why do firefighters respond first?

Firefighters respond to medical calls because they are trained and staffed to do so. In many areas, there are more fire engines in a given area than ambulances, so firefighters will usually be the first to arrive and give medical care in an emergency.

What is another term for a deck gun?

A deluge gun, fire monitor, master stream or deck gun is an aimable controllable high-capacity water jet used for manual firefighting or automatic fire protection systems.

What should you do when you call the fire service?

When calling: tell them what is on fire, for example, “a two-storey house” explain if anyone is trapped and what room they’re in – the more information you can give the Fire and Rescue Service, the more quickly and effectively they can help you You should find somewhere safe to wait near the building.

What happens if you go back into a building during a fire?

If you go back into the building, you will slow down the fire-fighters’ efforts to rescue anyone else missing, as well as putting your own life in great danger. If you live in a block of flats, you will need to consider that a fire could start directly outside your flat or in the stairwell.

How are fuels heated up ahead of a fire?

Most of the preheating of fuels ahead of a fire is by radiation of heat from the fire. As the fire front gets closer, the amount of radiant heat received is increased. Convection is the transfer of heat by the physical movement of hot masses of air. As air is heated, it expands (as do all objects).

Why are chemical reactions dangerous in a fire?

The dangerous thing about the chemical reactions in fire is the fact that they are self-perpetuating. The heat of the flame itself keeps the fuel at the ignition temperature, so it continues to burn as long as there is fuel and oxygen around it. The flame heats any surrounding fuel so it releases gases as well.