Fire Inspection & Code Enforcement Chapt. 3

43 Questions | Total Attempts: 219

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Chemical Reaction Quizzes & Trivia

Multiple choice questions for Chapter 3 - Fire Inspection & Code Enforcement -7th edition - fire inspector 1


Questions and Answers
  • 1. 
    Chemical reactions that absorb energy as they occur are called:
    • A. 

      Exothermic

    • B. 

      Endothermic

    • C. 

      Self-sustained

  • 2. 
    Chemical reactions that give off energy as they occur are called:
    • A. 

      Exothermic

    • B. 

      Endothermic

    • C. 

      Self-sustained

  • 3. 
    What is a chemical reaction that releases energy in the form of heat and light?
    • A. 

      Fire

    • B. 

      Ignition

    • C. 

      Tetrahedrom

  • 4. 
    What is the term used to define a chemical reaction involving the combination of oxygen with other materials?
    • A. 

      Combustion

    • B. 

      Radiation

    • C. 

      Oxidation

  • 5. 
    In the flaming mode of combustion, what type of fuel is required?
    • A. 

      Solid

    • B. 

      Gaseous

    • C. 

      Atomized

  • 6. 
    What type of combustion is best described as solid fuel that is porous and charring on the surface?
    • A. 

      Incipient

    • B. 

      Smoldering

    • C. 

      Free burning

  • 7. 
    What are the components of the fire tetrahedron?
    • A. 

      Heat, oxygen, fuel, self-sustained heating

    • B. 

      Heat, fuel, self-sustained chemical reaction, vapor

    • C. 

      Heat, fuel, oxygen, self-sustained chemical reaction

  • 8. 
    Which two key factors influence the combustion process as it relates to fuel?
    • A. 

      Specific gravity and vapor pressure

    • B. 

      Physical state and moisture content

    • C. 

      Physical state and distribution/orientation

  • 9. 
    In which state must fuel be for flaming combustion to occur?
    • A. 

      Heated

    • B. 

      Gaseous

    • C. 

      Oxidized

  • 10. 
    The chemical decomposition of a substance through the action of heat is called:
    • A. 

      Pyrolysis

    • B. 

      Reduction

    • C. 

      Oxidation

  • 11. 
    As the surface-to-mass ratio of a material increases, what affect does it have on ignition of that material?
    • A. 

      The fuel is more easily ignited.

    • B. 

      The fuel is more difficult to ignite.

    • C. 

      The surface-to-mass ratio is a minor factor.

  • 12. 
    Which of the following would have the lowest surface-to-mass ratio?
    • A. 

      A bucket of sawdust

    • B. 

      A log

    • C. 

      A piece of lumber 2"x16"x8" (50mmx400mmx2.4m)

  • 13. 
    Which of the following liquids is heavier than water?
    • A. 

      Gasoline

    • B. 

      Cooking Oil

    • C. 

      Epichlorohydrin

  • 14. 
    What is flash point?
    • A. 

      The temperature at which a liquid releases sufficient vapors to ignite and continue to burn

    • B. 

      The temperature at which a liquid releases sufficient vapors to ignite but not sustain combustion

    • C. 

      The temperature at which a liquid beings to release vapors but not in enough quantity to ignite

  • 15. 
    Which of the following describes a flammable liquid?
    • A. 

      A liquid with a flash point above 100*F (38*C)

    • B. 

      A liquid with a flash point below 100*F (38*C)

    • C. 

      A liquid with an ignition temperature above 100*F (38*C)

  • 16. 
    Which of the following describes a combustible liquid?
    • A. 

      A liquid with a flash point above 100*F (38*C)

    • B. 

      A liquid with a flash point below 100*F (38*C)

    • C. 

      A liquid with an ignition temperature above 100*F (38*C)

  • 17. 
    If a flammable liquid is spilled on the ground, which of the following explains the increased risks associated with fire?
    • A. 

      More fuel is available to create an ignition hazard.

    • B. 

      The surface area is increased and more vapors will be released.

    • C. 

      The vapor pressure of the liquid is lowered, increasing the hazard.

  • 18. 
    Which of the following best describes the results of using water-based foam designed for hydrocarbons on polar solvents?
    • A. 

      Polar solvents are soluble in water and the foam will mix with the solvent making the foam ineffective.

    • B. 

      Polar solvents are soluble in water; however, the water will dilute the solvent and will control the fire through dilution.

    • C. 

      Foam designed for hydrocarbons is equally effective on polar solvents by creating a film over the liquid and smothering the fire.

  • 19. 
    What will happen to a vapor given off by a flammable liquid with a vapor density of 2.3?
    • A. 

      The vapor will rise.

    • B. 

      The vapor will hover.

    • C. 

      The vapor will sink.

  • 20. 
    How does oxygen contribute to the burning process?
    • A. 

      Oxygen is flammable and adds to the fuel load.

    • B. 

      Oxygen contributes to the self-heating of materials.

    • C. 

      Oxygen is the primary oxidizing agent in most fires.

  • 21. 
    Which of the following statements about oxygen concentrations and combustion is MOST accurate?
    • A. 

      Combustion may occur at oxygen concentrations as low as 14% or lower given the right circumstances.

    • B. 

      Combustion does not occur at concentrations below about 18% because fire needs oxygen to burn.

    • C. 

      Combustion requires oxygen levels in the immediate range of ambient air (21%) in order to burn freely.

  • 22. 
    Which of the following best describes how higher concentrations of oxygen affect materials in fire conditions?
    • A. 

      Materials that burn at normal oxygen levels will explode.

    • B. 

      Materials that burn at normal oxygen levels will burn more slowly.

    • C. 

      Materials that burn at normal oxygen levels will burn more intensely.

  • 23. 
    Which of the following is defined as the range of vapor concentration that will support combustion?
    • A. 

      Flash range

    • B. 

      Explosive limit

    • C. 

      Flammable range

  • 24. 
    What form of energy is defined as energy associated with the movement of the atoms and molecules that comprise matter?
    • A. 

      Potential

    • B. 

      Kinetic

    • C. 

      Radiant

  • 25. 
    What term is defined as the capacity to perform work, and occurs when a force is applied to an object over a distance or when a chemical, biological, or physical transformation is made in a substance?
    • A. 

      Force

    • B. 

      Energy

    • C. 

      Potential