Fire Extinguishing Agents and Their Effects Quiz
15 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

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</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</p> Signup and view all the answers

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

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

    What type of fires do fire class A represent?

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

    Where are chemically active gases particularly advantageous?

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

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

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

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

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

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

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

    More Like This

    3A2E3 C15 Obj 1
    30 questions
    Fire Extinguishing Agents and Classes
    18 questions
    Chapter 8 - Portable Fire Extinguishers
    21 questions
    Use Quizgecko on...
    Browser
    Browser