Certified Energy Manager (CEM): CEM Exam

"Certified Energy Manager (CEM)", also known as CEM exam, is a AEE Certification. With the complete collection of questions and answers, PrepPDF has assembled to take you through 146 Q&As to your CEM Exam preparation. In the CEM exam resources, you will cover every field and category in Energy Management Certification helping to ready you for your successful AEE Certification.

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  • Exam Code: CEM
  • Exam Name: Certified Energy Manager (CEM)
  • Certification Provider: AEE
  • Corresponding Certification: Energy Management
  • Updated: Jun 14, 2026
  • No. of Questions: 146 Questions & Answers with Testing Engine
  • Download Limit: Unlimited

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AEE Certified Energy Manager (CEM) Sample Questions:

1. A 100-kW packaged engine-generator combined heat and power (CHP) system has the specifications listed below. What is the annual purchased fuel cost for the CHP system, assuming that the CHP is electrical output limited and operates at full electrical load all year?

SELECT THE CORRECT ANSWER

A) $28,900/yr
B) $43,776/yr
C) $32,668/yr
D) $52,222/yr
E) $58,300/yr


2. What is the best type of heat exchanger to recover and transfer latent heat energy from one air stream to another?

A) Desiccant heat wheel
B) Shell and tube
C) Ceramic recuperator
D) Run-around system
E) Heat pipe


3. Lighting systems operate with a certain recoverable light loss factor. Control systems with photocell sensor inputs combined with dimming ballasts can be used to regulate dimming levels to maintain a continuous light level in the work space. Which of the following best describes this type of control?

A) Two-position controller
B) Demand-limiting controller
C) Closed-loop controller
D) Open-loop controller


4. Which of the following instruments is most useful for tracking long-term boiler performance?

A) The boiler room ambient temperature sensor
B) The exhaust stack temperature sensor
C) The feedwater temperature sensor
D) The pressure gauge
E) The drum water level gauge


5. A high-pressure steam system passes 180°C condensate (saturated liquid) through a steam trap to an atmospherically vented condensate receiver tank. If the steam trap is working properly, how much of the condensate mass can be lost out the vent of the receiver tank in the form of flash steam?

A) 100%
B) 6%
C) 15%
D) 25%
E) 66%


Solutions:

Question # 1
Answer: B
Question # 2
Answer: A
Question # 3
Answer: C
Question # 4
Answer: B
Question # 5
Answer: C

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