What are the two principles of firefighting operations?

Cooling of Flame. Reduction of Flame by cooling of the liquid; dilution of the liquid; or blanketing of the liquid. Reduction of oxygen.

What are the two main principles on which firefighting operations work?

Fire extinguishing works on the principle of cutting off the supply of oxygen to the fire and bringing down the temperature.

What are the principles of firefighting?

Basic principles

  • Prevent the occurrence of fire: …
  • Provide fire compartmentalization: …
  • Provide safe escape routes: …
  • Provide fire alarms: …
  • Provide extinguishing agents: …
  • Provide facilities for the fire brigade: …
  • Provide adequate control and maintenance:

What are the two types of firefighting?

There are two types of fire-fighting equipment: portable (eg fire extinguishers, fire blankets) and fixed systems (eg fire hydrants, sprinkler systems).

Dry powder systems are used to extinguish fires in:

  • solid combustibles.
  • flammable liquids.
  • gases.
  • flammable metals.
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What are the two important functions of water in fire extinguishing?

Water performs two of these functions: its conversion to steam absorbs heat, and the steam displaces the air from the vicinity of the flame.

What are the three basic principle of firing?

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 are the four basic principles for discovery of fire and smoke?

Essentially all four elements must be present for fire to occur, fuel, heat, oxygen, and a chemical chain reaction.

What are the five principles of fire prevention and control?

Fire principles of prevention

  • Avoiding risks.
  • Evaluating the risks which cannot be avoided.
  • Combating the risks at source.
  • Adapting to technical progress.
  • Replacing the dangerous by the non-dangerous or less dangerous.

What is a firing operation?

In firing operations, crews progress so as to maintain a safety zone close at hand allowing the fuels inside the control line to be consumed before going ahead.

Is Firefighters one word or two?

The word fireman is older than firefighter, which first appeared in the late 19th century, and for a long time it was much more commonly used. These days, it’s more accurate to use firefighter, since men and women both work for fire departments battling fires.

What are the types of fire fighting equipment?

List of fire fighting equipment for home

  • Kitchen hood protection.
  • Smoke detector.
  • Fire extinguishers.
  • Fire blanket.
  • Fire escape ladder.
  • Fire sprinkler.
  • Fire hose.
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What is the important characteristics of the extinguishing agent in fighting a Class C fire?

The extinguishing agent in a Class C fire extinguisher must be electrically nonconductive. Both carbon dioxide and dry chemicals can be used for electrical fires. An advantage of carbon dioxide is that it leaves no residue after the fire is extinguished.

What is the proper method of fire extinguisher operation?

Aim the nozzle or outlet towards the base of the fire. Squeeze the handles together to discharge the extinguishing agent inside. To stop discharge, release the handles. Sweep the nozzle from side to side as you approach the fire, directing the extinguishing agent at the base of the flames.

What are the 3 methods of extinguishing a fire?

All fires can be extinguished by cooling, smothering, starving or by interrupting the combustion process to extinguish the fire. One of the most common methods of extinguishing a fire is by cooling with water.