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Rater practice Test Questions And Well Explained Answers

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Three million BTUs is equal to how many kWh? - Correct Answer 879 which of the following is among the four environmental factors that affect human comfort in the indoor environment - Correct Answer The Delta T Approximately how many cubic feet of natural gas would be required to produce 2...

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  • October 4, 2024
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Victoria108
Rater practice Test Questions And Well Explained Answers
Three million BTUs is equal to how many kWh? - Correct Answer 879



which of the following is among the four environmental factors that affect human comfort in the indoor
environment - Correct Answer The Delta T



Approximately how many cubic feet of natural gas would be required to produce 275,000 Btus? - Correct
Answer 275



Comfort is not a function of which of the following: - Correct Answer The amount of exfiltration ( air
exiting the home)



Convection is best exemplified by: - Correct Answer Warm air exfiltrating into the attic from the house



In the climate zone would a house be found that has 10,600 heating degree days and receives
approximately 25 to 30 inches if rain year? - Correct Answer Cold



One kWh equals - Correct Answer 3412 Btu



what is a common unit used when comparing fuels such as oil,gas and Lp? - Correct Answer mmbtu



what is the heat transfer for a ceiling having measurements of 30'X 60' with R-38 if the inside
temperature is 72 and the outside temperature is 25? - Correct Answer 22,000 btu/hr



what range of room relative humidity is considered for home occupants? - Correct Answer 30%-50%



When does condensation occur? - Correct Answer when the temperature of a surface is less than the
dew point



Which of the following has greater BTU capacity? - Correct Answer 1 gallon heating oil

, Which of the following situations would most likely degrade the indorr air quality? - Correct Answer
Leaks in the return plenum of an 80% AFUE furnace located in a closet within the building



Which of the following mechanisms of heat transfer would account for frost on a roof even when the
ambient temperature is above freezing? - Correct Answer Radiation



Without changing the grains of water in the air, if the air is heated the RH will: - Correct Answer
decrease



1185 square feet of an attic is insulated to R-30. there is 15 square feet of attic hatch insulated at R-3.
What is the average R-Value for the entire attic? - Correct Answer 27.03



If the thermal mass increases .... - Correct Answer the steady state R-value is not affected by the
thermal mass



The " design temperature" is the temperature equaled or exceeded 99% of the time during what three
winter months - Correct Answer December, January, and Feburary



The term "Thermal mass" refers to material having: - Correct Answer The ability to store heat



What is the air exiting a structure through cracks and/or holes called? - Correct Answer Exfiltration



Annual heating loads are expressed in - Correct Answer mmbtu



Which of the following is the primary plane of air tightness in a building? - Correct Answer The pressure
Boundary



The high temperature for in day in Atlanta was 70 degrees with an overnight low of 40 degrees. How
many heating degrees days occurred? - Correct Answer 10



How many pascals on average are in one inch of water column? - Correct Answer 250

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