Fire Extinguishing Agents and Their Effects Quiz
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Questions and Answers

What is the primary extinguishing effect of water according to the text?

  • Impact effect
  • Cooling effect (correct)
  • Evaporative heat
  • Throttle effect

Which type of water application is best suited for surface cooling according to the text?

  • Fixed beam
  • Nebulized beam
  • Water fog (correct)
  • Compressed air foam

Which type of flammable material is water not suitable for extinguishing according to the text?

  • Flammable gases
  • Flammable liquids
  • Alkaline metals (correct)
  • Solid flammable materials

What is the main disadvantage of using a fixed water beam according to the text?

<p>All of the above (D)</p> Signup and view all the answers

What is the primary chemical reaction that can occur with water according to the text?

<p>Reaction with alkali metals (A)</p> Signup and view all the answers

Which property of water is considered a disadvantage according to the text?

<p>Good electroconductivity (A)</p> Signup and view all the answers

What is the main advantage of using Halotron I-II, Inergen, FM 100, NAF S-III, and PASZ 47 as extinguishing agents?

<p>They are effective for different fire classes (A)</p> Signup and view all the answers

What type of fires do fire class A represent?

<p>Fires of solid substances of organic origin (A)</p> Signup and view all the answers

Which statement best describes the extinguishing effects of chemically active gases?

<p>They inhibit the radical chain reaction of combustion (C)</p> Signup and view all the answers

What is the primary role of extinguishing gas in relation to the combustion chamber?

<p>Dilutes fumes and gases (A)</p> Signup and view all the answers

Where are chemically active gases particularly advantageous?

<p>In confined spaces (D)</p> Signup and view all the answers

What is the primary cooling effect of extinguishing foam based on?

<p>The heat-absorbing capacity of the water in the foam (A)</p> Signup and view all the answers

Which of the following is NOT a key extinguishing effect of extinguishing foam?

<p>Emitting effect (D)</p> Signup and view all the answers

Which type of extinguishing foam is the most complex and expensive to produce?

<p>Chemical foams (B)</p> Signup and view all the answers

Which type of extinguishing foam is designed to be resistant to alcohol?

<p>Protein-based foams (A)</p> Signup and view all the answers

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