Firefighter 2 Ch-15

38 Questions | Total Attempts: 949

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Firefighter 2 Ch-15

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Questions and Answers
  • 1. 
    Which of the following is the agent most often used to extinguish structure fires?
    • A. 

      Water

    • B. 

      Foam

    • C. 

      Dry Chemicals

    • D. 

      Extinguishing powders

  • 2. 
    Which of the following is a factor in hoseline selection?
    • A. 

      Number of Bystanders

    • B. 

      Fire Load and material involved

    • C. 

      Photographic oppurtunities with the fire

    • D. 

      Whether Firefighters are career or volunteer

  • 3. 
    Which of the following is the LEAST likely factor to consider in hoseline selection?
    • A. 

      Fire Conditions

    • B. 

      Hoseline Color

    • C. 

      Volume of water needed for extinguishment

    • D. 

      Number of firefighters available for advancing hoselines

  • 4. 
    Which of the following nozzles can project water in a range of patterns?
    • A. 

      Primary Nozzle

    • B. 

      Solid-Stream Nozzle

    • C. 

      Combination Nozzle

    • D. 

      Multiple-use Nozzle

  • 5. 
    Which stream provides the greatest reach?
    • A. 

      Solid Stream

    • B. 

      Wide-angle fog stream

    • C. 

      Narrow-angle straight stream

    • D. 

      Medium-angle fog stream

  • 6. 
    Which of the following patterns can protect firefighters from radiant heat?
    • A. 

      Straight and solid streams

    • B. 

      Wide-angle fog stream

    • C. 

      Narrow-angle fog stream

    • D. 

      Medium-angle fog stream

  • 7. 
    Which pattern has limited capability for cooling hot gases?
    • A. 

      Solid Stream

    • B. 

      Wide-angle fog stream

    • C. 

      Narrow-angle fog stream

    • D. 

      Medium-angle fog stream

  • 8. 
    Which of the following factors dictate stream selection?
    • A. 

      Water source and experience of firefighters

    • B. 

      Value of the structure and number of firefighters

    • C. 

      Number of bystanders and length of hoseline

    • D. 

      Fire situation and capabilities of the nozzle being used

  • 9. 
    Converting water to steam is critical to:
    • A. 

      Heat absorption

    • B. 

      Heat Deflection

    • C. 

      Stream angle

    • D. 

      Stream temperature

  • 10. 
    Which of the following BEST describes Class B fires?
    • A. 

      Those that involve ordinary combustibles

    • B. 

      Those that involve combustible metals

    • C. 

      Those that involve energized electrical equipment

    • D. 

      Those that involve flammable and combustible liquids and gases

  • 11. 
    Which of the follwoing are liquids that have flash points higher than 100* F (38*C)?
    • A. 

      Flammable liquids

    • B. 

      Gaseous Liquids

    • C. 

      Semi-solid liquids

    • D. 

      Combustible liquids

  • 12. 
    Which of the following are flammable and combustible liquids that mix with water?
    • A. 

      Hydrocarbons

    • B. 

      Polarcarbons

    • C. 

      Polar Solvents

    • D. 

      Hydro Solvents

  • 13. 
    Which of the following would be a primary precaution to take when dealing with Class B fires?
    • A. 

      Avoid directing hose streams onto the fire

    • B. 

      Avoid using water to help control the fire

    • C. 

      Avoid standing in pools of fuel or runoff water

    • D. 

      Limit the number of personnel combating the fire

  • 14. 
    An increase in intensity of sound or fire issuing from a relief valve may indicate that a vessel is:
    • A. 

      Operating normally

    • B. 

      Starting to self-extinguish

    • C. 

      Underheating and implosion is imminent

    • D. 

      Overheating and rupture is imminent

  • 15. 
    Which of the following is the method most often used for controlling flammable liquid fires?
    • A. 

      Applying foam

    • B. 

      Applying CO2

    • C. 

      Letting the fire burn out

    • D. 

      Applying dry chemicals

  • 16. 
    Which of the following can happen if pressure vessels containing flammable liquids are heated by direct flame contact?
    • A. 

      Expanding vessel vapor explosion (EVVE)

    • B. 

      Boiling Liquid Imminent Vapor Burst (BLIVB)

    • C. 

      Rupturing and bursting gaseous explosion (RABGE)

    • D. 

      Boiling Liquid Expanding Vapor Explosion (BLEVE)

  • 17. 
    When using water as a cooling agent to help control Class B fires, water applied to burning storage tanks should be directed ___________ the level of the contained liquid
    • A. 

      Above

    • B. 

      Below

    • C. 

      In Line With

    • D. 

      In the center of

  • 18. 
    Which of the following statements about Class B fuels is MOST accurate?
    • A. 

      Water without foam additives should not be used on Class B fuels

    • B. 

      Class B fuels must never be flushed down storm drains or into sewers

    • C. 

      Class B fuels will degrade and can be flushed down storm drains or into sewers

    • D. 

      Hoselines should not be used to provide protection when shutting off gas control valves

  • 19. 
    When controlling Class B fires, approaches to the storage vessels exposed to the fire should be made at ____angles to the tanks.
    • A. 

      25- Degree

    • B. 

      45- Degree

    • C. 

      65- Degree

    • D. 

      90- Degree

  • 20. 
    Which of the following is a major difference in fires in vehicles transporting flammable fuesl and in flammable liquid storage facilities?
    • A. 

      Increased water supply

    • B. 

      Ease of containing spills and runoff

    • C. 

      Decreased life-safety risks to firefighters

    • D. 

      Difficulty in identifying the products involved

  • 21. 
    Which of the following is a guideline for working in traffic at bulk transport vehicle fires?
    • A. 

      Use road flares to illuminate the scene

    • B. 

      Position fire apparatus downhill and downwind

    • C. 

      Work from the side nearest traffic as mush as possible

    • D. 

      Close at least one lane of traffic in addition to the incident lane

  • 22. 
    Which of the following is NOT a major difference in fires in vehicles transporting flammable fuels and in flammable liquid storage facilities?
    • A. 

      Instability of vehicles

    • B. 

      Increased water supply

    • C. 

      Difficulty in containing spills and runoff

    • D. 

      Increased life-safety risk to passing motorists

  • 23. 
    The techniques of approaching and controlling leaks or fires involving vehicles:
    • A. 

      Are the same as for storage vessels

    • B. 

      Are different than those for storage vessels

    • C. 

      Cannot be accomplished by large fire departments

    • D. 

      Require special permits from the Environmental Protection Agency

  • 24. 
    Which of the following is NOT a method of determining the exact cargo?
    • A. 

      Placards

    • B. 

      Manifests

    • C. 

      Bills of Lading

    • D. 

      Taste or Touch

  • 25. 
    Where is natural gas used?
    • A. 

      Portable Power tools

    • B. 

      Commercial Facilities only

    • C. 

      Portable generators and welders

    • D. 

      Houses, businesses, and as a fuel for motor vehicles

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