1|Page
HERS Rater Training Exam Newest 2025 with 170
accurate and verified questions covering key topics
such as building envelope diagnostics, energy
modeling, ventilation standards, HVAC evaluation,
and RESNET guidelines for home energy efficiency
ratings.
A 100 Watt bulb is on for 12 hours. What is the power usage in
kilowatt-hours?
12
6.0
1.2
60 - ANSWER-1.2
A furnace retrofit costs $2700 and is expected to save the
homeowner $300 per year.
A)What is the payback time of the retrofit?
B)What is the annual return of the retrofit?
,2|Page
9 Years, 11.11
11 Years, 9.9 - ANSWER-9 Years, 11.11
A Kilowatt-Hour (kWh) is equal to:
One thousand Watt-Hours
3412 therms
3412 Btu
Both A and C - ANSWER-Both A and C
Match the energy type with its typical measurement unit:
1. Natural gas ______
2. Oil ______
3. Propane ______
4. Steam ______
5. Electricity ______
A. Horsepower
B. Barrel
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C. Gallon
D. Kilowatt-hours
E. Pounds
F. Foot-pounds
G. Therms
1. C 2. B 3. E 4. A 5. D
1. G 2. B 3. C 4. E 5. D
1. G 2. E 3. B 4. B 5. A
1. C 2. E 3. B 4. B 5. A - ANSWER-1. G 2. B 3. C 4. E 5. D
How much of the energy used on Earth derives from the sun?
40%
50%
75%
Over 99% - ANSWER-Over 99%
The first law of Thermodynamics says what:
, 4|Page
You don't ever talk about the First Law of Thermodynamics
Energy moves from high temperatures regions to low
Energy can never be created nor destroyed
Heat is a measurement of energy of movement of particles -
ANSWER-Energy can never be created nor destroyed
A British thermal unit is the amount of heat required to raise the
temperature of 1 ____ of water ______ degrees __________.
Gallon, 1, Celsius
Pound, 1, Fahrenheit
Liter, 1, Kelvin
Ounce, 10, Fahrenheit - ANSWER-Pound, 1, Fahrenheit
Enthalpy is:
Measurement of disorder of a system
Measurement of how much energy a material contains
When a home performance professional tries to put himself in
the homeowner's shoes Sympathy with the homeowner
HERS Rater Training Exam Newest 2025 with 170
accurate and verified questions covering key topics
such as building envelope diagnostics, energy
modeling, ventilation standards, HVAC evaluation,
and RESNET guidelines for home energy efficiency
ratings.
A 100 Watt bulb is on for 12 hours. What is the power usage in
kilowatt-hours?
12
6.0
1.2
60 - ANSWER-1.2
A furnace retrofit costs $2700 and is expected to save the
homeowner $300 per year.
A)What is the payback time of the retrofit?
B)What is the annual return of the retrofit?
,2|Page
9 Years, 11.11
11 Years, 9.9 - ANSWER-9 Years, 11.11
A Kilowatt-Hour (kWh) is equal to:
One thousand Watt-Hours
3412 therms
3412 Btu
Both A and C - ANSWER-Both A and C
Match the energy type with its typical measurement unit:
1. Natural gas ______
2. Oil ______
3. Propane ______
4. Steam ______
5. Electricity ______
A. Horsepower
B. Barrel
,3|Page
C. Gallon
D. Kilowatt-hours
E. Pounds
F. Foot-pounds
G. Therms
1. C 2. B 3. E 4. A 5. D
1. G 2. B 3. C 4. E 5. D
1. G 2. E 3. B 4. B 5. A
1. C 2. E 3. B 4. B 5. A - ANSWER-1. G 2. B 3. C 4. E 5. D
How much of the energy used on Earth derives from the sun?
40%
50%
75%
Over 99% - ANSWER-Over 99%
The first law of Thermodynamics says what:
, 4|Page
You don't ever talk about the First Law of Thermodynamics
Energy moves from high temperatures regions to low
Energy can never be created nor destroyed
Heat is a measurement of energy of movement of particles -
ANSWER-Energy can never be created nor destroyed
A British thermal unit is the amount of heat required to raise the
temperature of 1 ____ of water ______ degrees __________.
Gallon, 1, Celsius
Pound, 1, Fahrenheit
Liter, 1, Kelvin
Ounce, 10, Fahrenheit - ANSWER-Pound, 1, Fahrenheit
Enthalpy is:
Measurement of disorder of a system
Measurement of how much energy a material contains
When a home performance professional tries to put himself in
the homeowner's shoes Sympathy with the homeowner
