Rater practice Test Questions And Well Explained Answers
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Course
Rater
Institution
Rater
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...
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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