Rater practice Test UPDATED ACTUAL Questions and CORRECT Answers
Three million BTUs is equal to how many kWh? 879
which of the following is among the four environmental
factors that affect human comfort in the indoor environ- The Delta T
ment
Approximately how many cubic feet of natural gas would
275
be required to produce 275,000 Btus?
Comfort is not a function of which of the following: The amount of exfiltration ( air exiting the home)
Convection is best exemplified by: 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 Cold
25 to 30 inches if rain year?
One kWh equals 3412 Btu
what is a common unit used when comparing fuels such
mmbtu
as oil,gas and Lp?
what is the heat transfer for a ceiling having measure-
ments of 30'X 60' with R-38 if the inside temperature is 22,000 btu/hr
72 and the outside temperature is 25?
what range of room relative humidity is considered for
30%-50%
home occupants?
when the temperature of a surface is less than the dew
When does condensation occur?
point
Which of the following has greater BTU capacity? 1 gallon heating oil
Which of the following situations would most likely de- Leaks in the return plenum of an 80% AFUE furnace locat-
grade the indorr air quality? ed 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 tem- Radiation
perature is above freezing?
, Without changing the grains of water in the air, if the air
decrease
is heated the RH will:
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 27.03
average R-Value for the entire attic?
If the thermal mass increases .... 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 December, January, and Feburary
months
The term "Thermal mass" refers to material having: The ability to store heat
What is the air exiting a structure through cracks and/or
Exfiltration
holes called?
Annual heating loads are expressed in mmbtu
Which of the following is the primary plane of air tightness
The pressure Boundary
in a building?
The high temperature for in day in Atlanta was 70 degrees
with an overnight low of 40 degrees. How many heating 10
degrees days occurred?
How many pascals on average are in one inch of water
250
column?
what is air leaving a structure through cracks and/or holes
exfiltration
called
of the following where is the most likely place for the most
a return chase opened to the attic?
air infiltration in a home?
*insuflcient air to different areas of the house
If a duct system is leaking on the supply side, what is a
* The house will have negative pressure WRT the outside
possible consequence?
* there are may be comfort complaints
Three million BTUs is equal to how many kWh? 879
which of the following is among the four environmental
factors that affect human comfort in the indoor environ- The Delta T
ment
Approximately how many cubic feet of natural gas would
275
be required to produce 275,000 Btus?
Comfort is not a function of which of the following: The amount of exfiltration ( air exiting the home)
Convection is best exemplified by: 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 Cold
25 to 30 inches if rain year?
One kWh equals 3412 Btu
what is a common unit used when comparing fuels such
mmbtu
as oil,gas and Lp?
what is the heat transfer for a ceiling having measure-
ments of 30'X 60' with R-38 if the inside temperature is 22,000 btu/hr
72 and the outside temperature is 25?
what range of room relative humidity is considered for
30%-50%
home occupants?
when the temperature of a surface is less than the dew
When does condensation occur?
point
Which of the following has greater BTU capacity? 1 gallon heating oil
Which of the following situations would most likely de- Leaks in the return plenum of an 80% AFUE furnace locat-
grade the indorr air quality? ed 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 tem- Radiation
perature is above freezing?
, Without changing the grains of water in the air, if the air
decrease
is heated the RH will:
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 27.03
average R-Value for the entire attic?
If the thermal mass increases .... 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 December, January, and Feburary
months
The term "Thermal mass" refers to material having: The ability to store heat
What is the air exiting a structure through cracks and/or
Exfiltration
holes called?
Annual heating loads are expressed in mmbtu
Which of the following is the primary plane of air tightness
The pressure Boundary
in a building?
The high temperature for in day in Atlanta was 70 degrees
with an overnight low of 40 degrees. How many heating 10
degrees days occurred?
How many pascals on average are in one inch of water
250
column?
what is air leaving a structure through cracks and/or holes
exfiltration
called
of the following where is the most likely place for the most
a return chase opened to the attic?
air infiltration in a home?
*insuflcient air to different areas of the house
If a duct system is leaking on the supply side, what is a
* The house will have negative pressure WRT the outside
possible consequence?
* there are may be comfort complaints
