Residential Energy Audit - Chapter 1

55 Questions | Total Attempts: 218

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Residential Energy Audit - Chapter 1

Questions in this quiz are based on material in the following book:Residential Energy: Cost savings and comfort for existing buildingsAuthors: John Krigger & Chris Dorsi


Questions and Answers
  • 1. 
    What is the first law of thermodynamics?
    • A. 

      Kinetic energy is transitional energy.

    • B. 

      Heat moves from low to high temperature regions.

    • C. 

      Energy can not be created or destroyed.

  • 2. 
    What is the second law of thermodynamics?
    • A. 

      Energy can not be created or destroyed.

    • B. 

      Heat moves from high to low temperature regions - without additional energy from an external source.

    • C. 

      Kinetic energy is transitional energy.

  • 3. 
    __________________ is a measure of how fast molecules in a substance are moving or vibrating.
  • 4. 
    Choose the best definition of a BTU:
    • A. 

      Heat is measured in BTU's. It is the amount required to raise a pound of water's temperature 1deg Fahrenheit.

    • B. 

      Unexpected heat.

    • C. 

      BTU's cool materials.

  • 5. 
    Choose the correct statement
    • A. 

      The heat content is equal in each of the water containers.

    • B. 

      The heat content is directly related to the mass of the water.

  • 6. 
    What is latent heat?
    • A. 

      Latent heat is heat that can not be used.

    • B. 

      Latent heat is the heat released or absorbed when a material changes phase between a solid and a liquid or between a liquid and a gas.

  • 7. 
    Which of the following uses latent heat to carry energy from one place to another?
    • A. 

      Steam-heating systems

    • B. 

      Air conditioning

    • C. 

      Refrigerators

  • 8. 
    What is the boiling point of water?
    • A. 

      212 deg Fahrenheit or 100 deg Celsius

    • B. 

      100 deg Fahrenheit or 212 deg Celsius

  • 9. 
    778 foot-pounds is equal to how many BTU(s)?
    • A. 

      100

    • B. 

      10

    • C. 

      1

  • 10. 
    Three measures of energy are:
    • A. 

      BTU

    • B. 

      Foot-pounds

    • C. 

      PSI

    • D. 

      Gallons per minute

    • E. 

      Kilowatt-hours

  • 11. 
    Wind moves air from a high pressure region to a low pressure region until the pressure difference between the regions are equalized.
    • A. 

      True

    • B. 

      False

  • 12. 
    Energy can not be destroyed or created. Energy can be converted into another form.
    • A. 

      True

    • B. 

      False

  • 13. 
    Some of the heating energy flowing through pipes and ducts is lost by _________,_________, and ___________  from heated pipes and ducts to their surrounding and also by ai, steam or water escaping from their conduits.  
    • A. 

      Transmission

    • B. 

      Gravity

    • C. 

      Conduction

    • D. 

      Radiation

    • E. 

      Convection

  • 14. 
    Conduction happens when 
    • A. 

      Heat is transferred by a moving liquid such as air.

    • B. 

      Heat conducts through solid objects.

    • C. 

      Heat flies through space from one object to another.

  • 15. 
    Radiation happens when
    • A. 

      Heat flies through space from one object to another.

    • B. 

      Heat conducts through solid objects.

    • C. 

      Heat is transferred by a moving liquid such as air.

  • 16. 
    Convection happens when
    • A. 

      Heat conducts through solid objects.

    • B. 

      Heat is transferred by a moving liquid such as air.

    • C. 

      Heat flies through space from one object to another.

  • 17. 
    Bright white and polished metal objects reflect _________ to ___________ of incoming solar energy.
    • A. 

      10% to 49%

    • B. 

      80% to 98%

    • C. 

      50% to 63%

  • 18. 
    Darker colors absorb a lower percentage of incoming solar energy.
    • A. 

      True

    • B. 

      False

  • 19. 
    Glass reflect or absorb only 10% to 20% of the incident solar.
    • A. 

      True

    • B. 

      False

  • 20. 
    Glass reflect or absorb 50% to 100% of the incident solar.
    • A. 

      True

    • B. 

      False

  • 21. 
    Glass transmit around 80% to 90% of incident solar radiation.
    • A. 

      True

    • B. 

      False

  • 22. 
    Why is heat trapped within a greenhouse? (choose the most correct)
    • A. 

      Glass' solar transmittance and infrared absorbency.

    • B. 

      Lack of ventilation

  • 23. 
    Glass abosrbs earthly infrared radiation better than many plastic glazings, which transmit much of this radiation rather than absorbing it, resulting in greater heat loss from greenhouses glazed with plastic
    • A. 

      True

    • B. 

      False

  • 24. 
    Metalized glass coatings are also called
    • A. 

      Metal glass

    • B. 

      Low-e glass

    • C. 

      Carbon glass

  • 25. 
    Why are metalized coatings used on glass?
    • A. 

      Makes glass flexible.

    • B. 

      Makes glass shatterproof

    • C. 

      Reduces the glass' solar transmittance by reflecting some solar radiation.

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