AEE CEM - Certified Energy Manager (CEM)
- Exam Code: CEM
- Exam Name: Certified Energy Manager (CEM)
- Updated: Aug 11, 2026
- Q & A: 146 Questions and Answers
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| Section | Weight | Objectives |
|---|---|---|
| Energy Savings Performance Contracting | 5% | - Guaranteed savings and risk allocation - Contract structures and financing |
| Electrical Power Systems and Motors | 15% | - Power distribution and quality - Power factor correction and load management - Motor systems, efficiency and controls |
| Industrial Systems | 6–8 | - Compressed air, pumping, and drying systems - Process energy efficiency |
| Measurement and Verification | 5% | - Baseline development and savings calculation - M&V protocols and standards |
| Operations, Maintenance and Commissioning | 5% | - Commissioning and retro-commissioning - Maintenance best practices |
| HVAC Systems and Building Envelope | 15% | - Thermal envelope performance - Load calculation and system selection - Heating, ventilation and air conditioning |
| Energy Audits and Instrumentation | 10% | - Energy performance indicators - Audit levels and methodologies - Data collection and analysis - Measurement tools and instrumentation |
| Boiler and Steam Systems | 4–6 | - Operation and efficiency - Maintenance and optimization |
| Lighting Systems | 10% | - Daylighting integration - Design and control strategies - Lighting technologies and efficiency |
| Codes, Standards and Regulations | 5% | - Compliance and reporting requirements - Sustainability policies and frameworks - Energy efficiency codes and standards |
| Energy Accounting and Economics | 15% | - Life cycle costing and economic analysis - Time value of money, NPV, IRR, payback analysis - Energy units and conversions - Utility rate structures and tariffs |
| Building Automation and Controls | 5% | - Automation and optimization - Control systems and strategies - Building management systems |
| Distributed Generation and Renewable Energy | 4–6 | - Combined heat and power (CHP) - Solar, wind, biomass, geothermal - Grid integration and economics |
| Energy Storage Systems | 3–5 | - Integration and benefits - Storage technologies and applications |
1. How can you tell if steam traps in a steam distribution system may NOT be working correctly?
A) Robust flash steam rising from condensate receiver tank vent pipes
B) No sound from inverted bucket steam traps
C) Rapid chattering of disk steam traps
D) All of the above
E) An increase in make-up water requirements relative to steam demand
2. A three phase, 380-volt system, has the following voltage measurements:
Va = 375 volts
Vb = 380 volts
Vc = 391 volts
Calculate the percent voltage imbalance.
A) 3.4%
B) 2.4%
C) 6.2%
D) 1.1%
E) 5.5%
3. Which of the following color temperatures looks more like daylight?
A) 6,500 K
B) 3,500 K
C) 2,500 K
D) 4,500 K
4. A large office building is entirely fitted out with ten-thousand new T5 fluorescent lamps today, which will be operational for 2,500 hours per year. The lamps are supposed to last 17,860 hours. How many months from today will be the best schedule for group relamping (total replacement of all the T5 fluorescent lamps in the building)?
A) 60 months
B) 5 months
C) 68 months
D) 85.7 months
5. What type of passive heat exchanger can wrap around an evaporator coil to precool entering air and reheat the air after the cooling coil without adding more moisture to the supply air stream?
A) Run-around coil
B) Plate and frame
C) Desiccant heat wheel
D) Heat pump
E) Heat pipe
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: B | Question # 3 Answer: A | Question # 4 Answer: D | Question # 5 Answer: E |
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