AEE CEM : Certified Energy Manager (CEM)

CEM real exams

Exam Code: CEM

Exam Name: Certified Energy Manager (CEM)

Updated: Aug 06, 2026

Q & A: 146 Questions and Answers

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AEE CEM Exam Syllabus Topics:

SectionObjectives
Renewable Energy and Sustainability- Renewable energy integration
- Sustainable energy management practices
Energy Audits and Management- Energy audit levels and procedures
- Energy management planning
- Data collection and analysis methods
Lighting Systems- Lighting technologies and controls
- Lighting efficiency improvement strategies
Energy Accounting and Economics- Energy cost analysis and tariff structures
- Energy budgeting and benchmarking
- Life-cycle cost analysis and financial evaluation
Electrical Systems- Motors and drives efficiency
- Electrical distribution systems
- Power factor correction
Mechanical and Thermal Systems- HVAC systems and optimization
- Boilers, steam systems, and thermal distribution
- Compressed air systems
Measurement and Verification- M&V principles and protocols
- Energy savings calculation methods

AEE Certified Energy Manager (CEM) Sample Questions:

1. Air is heated from 10°C (dry bulb temperature) and 80% relative humidity to 32°C (dry bulb temperature).
What is the new relative humidity?

A) 30%
B) 60%
C) 40%
D) 80%
E) 20%


2. An energy-saving project costs $540,000. The project will have maintenance costs of $25,000 per year. The energy savings from the project are $160,000 per year. What is the simple payback of the project?

A) 5.0 years
B) 3.0 years
C) 2.0 years
D) 4.0 years


3. Which of the following controls can optimize the operation of lighting systems?

A) Photocells
B) Timer
C) All of the above
D) Dimming ballasts
E) Occupancy sensors


4. What is the definition of lamp life for a fluorescent lamp?

A) The time at which lumen output has reduced to 70% of the initial light output
B) The time at which 50% of a large sample of lamps have failed
C) The time at which lamps begin to fail
D) The time at which 70% of a large sample of lamps have failed
E) The time at which lumen output has reduced by 50%


5. A 50-Hz alternating current (AC) induction motor has 3 pole pairs (6 poles). What is the synchronous speed of the motor?

A) 1,000 rpm
B) 750 rpm
C) 600 rpm
D) 1,500 rpm


Solutions:

Question # 1
Answer: E
Question # 2
Answer: D
Question # 3
Answer: C
Question # 4
Answer: A
Question # 5
Answer: D

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