Advanced Placement (AP)
1. The Riseaux family is building a two-story home in northern Arizona on a large amount of acreage.Which type of thermal storage system would likely best suit their needs?A. UnderfloorB. GeothermalC. HydronicD. Ceramic2. A very good insulator has an R-value of 29. The material's heat transfer coefficient isA. 0.034.B. 8.497.C. 14.5.D. 29.3. Which of the following is a factor that reduces the required number of kWh for heating?A. Cooling systems on machinery operated in the spaceB. Lower use of electrical equipmentC. Greater number of people occupying the spaceD. Lower lighting levels4. Using the degree day method, calculate the annual kWh use in Springfield, IL, with a heat loss of 12kWh, an indoor design temperature of 70F, and assuming a 24 hour per day occupancy.A. 25,080B. 23,512C. 34,466D. 18,8105. The Vanelli family is building a house and wants to save money anywhere they can. Which of thefollowing choices would be the most expensive electric system for them to operate?A. Heat pumpB. BaseboardC. Radiant ceilingD. Program clock6. In a building with 10,000 cubic feet where the air changes every two hours, what's the rate of airchange?A. 133.3 cfmB. 167.7 cfmC. 83.3 cfmD. 50 cfm7. Of the following, which is true of radiant heat?A. A normal thermostat can be used.B. Radiant heat can be used as a central system only.C. Lower temperature settings can be used with the same comfort level.D. Radiant heat is no longer considered a safe heating system.8. Which of the following types of heating systems is often installed with a humidistat to improve fresh airexchange?A. Panel heaterB. Radiant ceiling cableC. Hydronic heating systemD. Resistance baseboard9. Eve's contractor recommended she not install baseboard heating. In which scenario would it bedisadvantageous to install a baseboard heating system?A. Where electricity is generated from a gas-fired plantB. Where there are low ceiling heightsC. Where the TD is zeroD. Where there is high room air circulation10. Electric resistance heaters have low thermal mass, which means thatA. they're lightweight for the amount of heat energy released.B. switching must be fast to avoid large temperature swings.C. they retain heat well.D. they're energy-efficient.11. Eric is doing measurements to build a quote for a residential heating system installation. He's discoveredamount x of heat loss from ventilation and amount y from infiltration. What number should he use for hiscalculations?A. Whichever is greater, x or yB. The average of x and yC. The sum of x and yD. The difference between x and y12. Heating units that depend on the natural circulation of air in the space to be heated are calledA. electric baseboard heaters.B. unit ventilators.C. heat pumps.D. hot water storage heaters.13. Using a heater to reduce humidity during the cooling season is calledA. dry heating.B. humidification.C. terminal reheat.D. hydronic reduction.14. Which of the following controls can automatically reduce heating levels when the building is unoccupiedfor periods of time and heat isn't needed?A. Program clockB. Damper controlC. Thermostat with bimetallic elementD. Sensing element15. A circuit with a resistance of 25 ohms is carrying a load of 2 amps. How much heat (in watts) isdeveloped?A. 450B. 50C. 1,250D. 10016. Erwin is the contractor on a single-floor residence on a large concrete slab. Which is the best thermalstorage option for him in this installation?A. HydronicB. UnderfloorC. CeramicD. Conduction17. If the base temperature is 65 degrees and the mean is 50, what's the DD?A. 11B. 57.5C. 115D. 1518. What's the most expensive source of energy per Btu?A. OilB. SolarC. ElectricD. GasEnd of exam19. What is the R-value of an air space?A. 1B. .0028C. .91D. Essentially zero20. The Stratton family wants a heating system with no drafts, even heat, and no stratification of heatbetween floor and ceiling. Which type should they install?A. Radiant heating in floor slabsB. BaseboardsC. Unit ventilators throughout the residenceD. A heat pump