Fuel Oils from Petroleum and Flammable Liquids Quiz
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Questions and Answers

What percentage of oxygen is needed to produce fire in the presence of fuel and heat?

  • 12%
  • 16%
  • 21% (correct)
  • 14%

    • Which element is the most abundant of all elements?

  • Argon
  • Nitrogen
  • Oxygen (correct)
  • Hydrogen

    • What is the flash point of a material?

  • Highest liquid temperature at which a liquid gives off vapors
  • Lowest liquid temperature at which a liquid gives off vapors capable of forming an ignitable mixture (correct)
  • Temperature at which a liquid catches fire
  • Temperature at which the vapors of a material will continue to burn for at least five seconds after ignition

    • What is an oxidizing agent?

    <p>A substance that promotes oxidation in other substances</p> Signup and view all the answers

    Which gas composes 78% of air?

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

    What is the fire point of a fuel?

    <p>The temperature at which a fuel will continue to burn after ignition</p> Signup and view all the answers

    How is electrical heat typically generated?

    <p>As a result of arcing or shorting in electrical systems</p> Signup and view all the answers

    Which of the following is NOT a source of electrical heat generation?

    <p>Reduced air circulation</p> Signup and view all the answers

    In what way does compressed gas produce heat?

    <p>By increasing molecular activity</p> Signup and view all the answers

    Which method of heat transfer involves molecular activity within a material?

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

    What is the underlying factor in convection for heat transfer?

    <p>Circulating medium like air or liquid</p> Signup and view all the answers

    What is the primary mechanism behind the pain felt when touching a hot stove?

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

    Which type of heat transfer involves the motion of matter?

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

    What is the primary method by which energy in the form of heat can be transferred between bodies?

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

    'Superheated pipes, steel girders, and structural members' mentioned in the text are primarily associated with which kind of heat transfer?

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

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