1|Page
HERS (Home Energy Rating System) Rater Newest
2025 Exam featuring 250 accurate and verified
questions covering energy auditing, building science
principles, HVAC systems, blower door and duct
testing, and RESNET standards.
How do you check to see how thick the insulation is in the
framed cavities? - ANSWER-Measure the thickness of window
and door jambs
EEM (Energy Efficiency Morgages) do not feature... -
ANSWER-Reduced interest rates
Which view shows insulation levels and placement - ANSWER-
Sectional View
A heat pump water heater's efficiency rating is expressed as -
ANSWER-EF
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The HERS Index is based on these end uses - ANSWER-
heating, cooling, water heating, lighting, appliances (H C WH L
A) (How Come WHales Like Anchovies)
What cold weather hazard is most likely to be caused by small
positive building pressures? - ANSWER-condensation in
cavities (inside of exterior wall is the cold surface) (vapor
moving from inside, out)
T/F
Chimney bump outs are excluded from exterior measurements -
ANSWER-True
A Rater must disclose a financial interest in a home to (2 people)
- ANSWER-1. the client
2. the provider
Relative Humidity (RH) - ANSWER-the amount of water vapor
in the body of air compared to the maximum amount that air
could hold at that temperature and pressure
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A properly sized furnace in a cooling dominated climate: -
ANSWER-may be oversized to provide enough airflow for air
conditioning
When conducting a blower door test, you depressurize the house
to -50 Pa with a fan pressure of 20 PA. What should you do? -
ANSWER-Record the fan pressure and look up the flow rate
from the chart
Unit typically used to measure natural gas consumption -
ANSWER-Therm
U-factor is defined as... - ANSWER-The rate of heat
transmission through a unit area of a building section per degree
difference in temperature
What is the most useful information we get by performing multi-
point tests as opposed to the single-point test? - ANSWER-
Estimation of leakage area
What is the maximum amount allowed for a Fannie Mae EIM? -
ANSWER-15% of the appraised value of the home
, 4|Page
What hazard is most likely to be caused by small negative
building pressures? - ANSWER-condensation in cavities
(interior wall surface is the cold surface)
Per Section 102, tax records much be retained for how long by
the rater or provider? - ANSWER-3 years
The period of time in which a batch of homes being rated using
a sampling approach must be assessed within (IE the period that
all the houses in the sample are in the predrywall phase) -
ANSWER-30 calendar day maximum
If fewer than ____ homes are available for that phase of
inspection (30 day window) then the sample must be cut off at
the number of homes that are available w/in the 30 days -
ANSWER-7
To upkeep a sampling period, each participating subdivision
within a metropolitan area must complete sampling controls in a
minimum of one home in any __ calendar day period. -
ANSWER-90
HERS (Home Energy Rating System) Rater Newest
2025 Exam featuring 250 accurate and verified
questions covering energy auditing, building science
principles, HVAC systems, blower door and duct
testing, and RESNET standards.
How do you check to see how thick the insulation is in the
framed cavities? - ANSWER-Measure the thickness of window
and door jambs
EEM (Energy Efficiency Morgages) do not feature... -
ANSWER-Reduced interest rates
Which view shows insulation levels and placement - ANSWER-
Sectional View
A heat pump water heater's efficiency rating is expressed as -
ANSWER-EF
,2|Page
The HERS Index is based on these end uses - ANSWER-
heating, cooling, water heating, lighting, appliances (H C WH L
A) (How Come WHales Like Anchovies)
What cold weather hazard is most likely to be caused by small
positive building pressures? - ANSWER-condensation in
cavities (inside of exterior wall is the cold surface) (vapor
moving from inside, out)
T/F
Chimney bump outs are excluded from exterior measurements -
ANSWER-True
A Rater must disclose a financial interest in a home to (2 people)
- ANSWER-1. the client
2. the provider
Relative Humidity (RH) - ANSWER-the amount of water vapor
in the body of air compared to the maximum amount that air
could hold at that temperature and pressure
,3|Page
A properly sized furnace in a cooling dominated climate: -
ANSWER-may be oversized to provide enough airflow for air
conditioning
When conducting a blower door test, you depressurize the house
to -50 Pa with a fan pressure of 20 PA. What should you do? -
ANSWER-Record the fan pressure and look up the flow rate
from the chart
Unit typically used to measure natural gas consumption -
ANSWER-Therm
U-factor is defined as... - ANSWER-The rate of heat
transmission through a unit area of a building section per degree
difference in temperature
What is the most useful information we get by performing multi-
point tests as opposed to the single-point test? - ANSWER-
Estimation of leakage area
What is the maximum amount allowed for a Fannie Mae EIM? -
ANSWER-15% of the appraised value of the home
, 4|Page
What hazard is most likely to be caused by small negative
building pressures? - ANSWER-condensation in cavities
(interior wall surface is the cold surface)
Per Section 102, tax records much be retained for how long by
the rater or provider? - ANSWER-3 years
The period of time in which a batch of homes being rated using
a sampling approach must be assessed within (IE the period that
all the houses in the sample are in the predrywall phase) -
ANSWER-30 calendar day maximum
If fewer than ____ homes are available for that phase of
inspection (30 day window) then the sample must be cut off at
the number of homes that are available w/in the 30 days -
ANSWER-7
To upkeep a sampling period, each participating subdivision
within a metropolitan area must complete sampling controls in a
minimum of one home in any __ calendar day period. -
ANSWER-90
