ASHRAE Energy Modeling Professional
Certification (EMP) Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. A building energy model primarily serves which purpose in design and
operation?
A. Structural load analysis
B. Predicting occupant behavior patterns
C. Estimating building energy performance under defined assumptions
D. Replacing HVAC system design calculations
Answer: C
A building energy model is used to estimate energy consumption and
performance based on defined inputs such as weather, occupancy,
and systems, rather than replacing engineering design or predicting
structural behavior.
,2. Which weather data file is most commonly used in building energy
simulation tools?
A. CSV occupancy schedule
B. TMY weather file
C. CAD geometry file
D. BIM clash report
Answer: B
Typical Meteorological Year (TMY) files provide representative long-
term weather data used in energy modeling simulations.
3. In ASHRAE 90.1 Appendix G, what is the baseline model primarily used
for?
A. Equipment sizing
B. Compliance comparison
C. Structural verification
D. Fire safety analysis
Answer: B
The baseline model in Appendix G is used to compare proposed
building performance against a standardized reference for
compliance or performance rating.
4. Internal gains in a building energy model include:
A. Roof insulation only
B. Solar radiation only
C. Occupants, lighting, and equipment
, D. Wind infiltration only
Answer: C
Internal gains come from heat sources inside the building such as
occupants, lighting, and plug loads.
5. Which HVAC system characteristic most impacts energy modeling
results?
A. Paint color
B. Control strategy
C. Furniture layout
D. Window framing color
Answer: B
Control strategies significantly influence HVAC operation, affecting
energy use patterns and system efficiency.
6. What is the main purpose of calibration in energy modeling?
A. Increase simulation speed
B. Match model outputs to measured utility data
C. Reduce building cost
D. Eliminate need for weather data
Answer: B
Calibration adjusts model inputs to align simulation results with
actual energy consumption data.
7. Which metric is commonly used to assess model calibration accuracy?
A. R-value
, B. CVRMSE
C. COP
D. U-factor
Answer: B
Coefficient of Variation of Root Mean Square Error (CVRMSE) is
widely used to evaluate calibration accuracy.
8. Which factor most directly affects infiltration in energy models?
A. Roof height only
B. Window glass type
C. Air leakage and pressure differences
D. Lighting density
Answer: C
Infiltration is driven by air leakage through the building envelope
and pressure differences caused by wind and temperature.
9. Which energy modeling approach is most detailed?
A. Bin method
B. Steady-state method
C. Dynamic simulation
D. Rule-of-thumb estimation
Answer: C
Dynamic simulation accounts for time-varying conditions, making it
the most detailed approach.
Certification (EMP) Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. A building energy model primarily serves which purpose in design and
operation?
A. Structural load analysis
B. Predicting occupant behavior patterns
C. Estimating building energy performance under defined assumptions
D. Replacing HVAC system design calculations
Answer: C
A building energy model is used to estimate energy consumption and
performance based on defined inputs such as weather, occupancy,
and systems, rather than replacing engineering design or predicting
structural behavior.
,2. Which weather data file is most commonly used in building energy
simulation tools?
A. CSV occupancy schedule
B. TMY weather file
C. CAD geometry file
D. BIM clash report
Answer: B
Typical Meteorological Year (TMY) files provide representative long-
term weather data used in energy modeling simulations.
3. In ASHRAE 90.1 Appendix G, what is the baseline model primarily used
for?
A. Equipment sizing
B. Compliance comparison
C. Structural verification
D. Fire safety analysis
Answer: B
The baseline model in Appendix G is used to compare proposed
building performance against a standardized reference for
compliance or performance rating.
4. Internal gains in a building energy model include:
A. Roof insulation only
B. Solar radiation only
C. Occupants, lighting, and equipment
, D. Wind infiltration only
Answer: C
Internal gains come from heat sources inside the building such as
occupants, lighting, and plug loads.
5. Which HVAC system characteristic most impacts energy modeling
results?
A. Paint color
B. Control strategy
C. Furniture layout
D. Window framing color
Answer: B
Control strategies significantly influence HVAC operation, affecting
energy use patterns and system efficiency.
6. What is the main purpose of calibration in energy modeling?
A. Increase simulation speed
B. Match model outputs to measured utility data
C. Reduce building cost
D. Eliminate need for weather data
Answer: B
Calibration adjusts model inputs to align simulation results with
actual energy consumption data.
7. Which metric is commonly used to assess model calibration accuracy?
A. R-value
, B. CVRMSE
C. COP
D. U-factor
Answer: B
Coefficient of Variation of Root Mean Square Error (CVRMSE) is
widely used to evaluate calibration accuracy.
8. Which factor most directly affects infiltration in energy models?
A. Roof height only
B. Window glass type
C. Air leakage and pressure differences
D. Lighting density
Answer: C
Infiltration is driven by air leakage through the building envelope
and pressure differences caused by wind and temperature.
9. Which energy modeling approach is most detailed?
A. Bin method
B. Steady-state method
C. Dynamic simulation
D. Rule-of-thumb estimation
Answer: C
Dynamic simulation accounts for time-varying conditions, making it
the most detailed approach.
