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By Charles Linn, FAIA

AIA/Architectural Record Continuing Education

Instructions

• Read the article "Can a New Kind of Heat Pump Change the World?"
• Complete the questions below, then fill in your answers .
• Fill out and submit the AIA/CES education reporting form in the magazine or print the form to receive one AIA learning unit.

Questions:

LU: 1
HSW: 1

1. Geosourced heat pumps tap the heat that is present in which?
a. earth and air
b. air and water
c. earth and water
d. earth and rock

2. Which do heat pumps compress in order to achieve desirable temperatures?
a. energy
b. air
c. water
d. refrigerant

3. As temperatures fall, typical heat pumps do which?
a. become less efficient
b. become more efficient
c. become a toaster
d. quit working

4. Geothermal heat pumps are not used in urban areas for which reason?
a. lack of earth depth
b. lack of adequate water sources
c. lack of fossil fuel
d. lack of bedrock

5. When the refrigerant in a heat pump is changing from liquid to gas, it is doing which?
a. releasing heat
b. absorbing heat
c. storing heat
d. converting heat

6. The freezing and boiling points of refrigerants can be changed by which?
a. cooling
b. heating
c. pressurizing
d. vaporizing

7. The device that restricts the flow of refrigerant is which?
a. condenser
b. compressor
c. tubing
d. expansion valve

8. When the warm liquid refrigerant is forced through the expansion valve, it does which?
a. flashes
b. the boiling point drops
c. instantly boils
d. all three above

9. A heat pump is differentiated from an air conditioner by which?
a. the pressure of the refrigerant is reversed
b. the volume of the refrigerant can be altered
c. the expansion of the refrigerant can be controlled
d. the direction of the refrigerant can be reversed

10. The low-temperature heat pump is more efficient than other heat pumps below which temperature?
a. 10 degrees Fahrenheit
b. 20 degrees Fahrenheit
c. 30 degrees Fahrenheit
d. 40 degrees Fahrenheit

Click here to print the reporting form.