Question 871Deck Safety70% to pass
Which fire-fighting agent is most effective at removing heat?
AI Explanation
The correct answer is B) Water spray.
Water spray is the most effective fire-fighting agent at removing heat from a fire. Water absorbs a large amount of heat when it changes from a liquid to a gas (steam), effectively cooling the fire and suppressing the flames. Carbon dioxide, dry chemical, and foam fire extinguishers work primarily by smothering the fire and interrupting the chemical reaction, but they do not remove as much heat as water.
Related Questions
#869 An extinguishing agent which effectively cools, dilutes combustible vapors, removes oxygen, and provides a heat and smoke screen is _______________.#870 Which extinguishing agent will cool down a heated bulkhead in the least amount of time? #872 What are the most important reasons for using water fog to fight fires? #873 When using a high-velocity fog stream in a passageway, the possibility of a blow back must be guarded against. Blow back is most likely to occur when _______________.#874 What is an advantage of water fog or water spray over a straight stream of water in fighting an oil fire?