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Certified Energy Manager (CEM) CEM exam torrent materials
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AEE CEM Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Renewable Energy Technologies | 8-12% | - Energy storage technologies - Wind energy systems - Geothermal systems - Solar thermal systems - Biomass and bioenergy - Solar photovoltaic systems |
| Energy Project Implementation | 8-12% | - Measurement and verification (M&V) - Implementation strategies - Energy service companies (ESCOs) - Project risk management - Performance contracting (ESPC) - Project financing models |
| Building Envelope | 8-12% | - Daylighting and shading - Insulation types and R-values - Windows and glazing systems - Thermal envelope analysis - Air leakage and infiltration |
| Electric Power Systems | 10-15% | - Power factor correction - Lighting systems and controls - Motors and drives - Standby power systems - Power distribution systems - Harmonics and power quality |
| Energy Accounting and Economics | 10-15% | - Utility rate structures and tariffs - Energy cost accounting and allocation - Financial analysis techniques (ROI, NPV, IRR) - Life cycle cost analysis (LCCA) - Energy price forecasting |
| Environmental and Regulatory Compliance | 5-10% | - Sustainability reporting - Carbon footprint calculation - EPA regulations (Clean Air Act, Clean Water Act) - Energy reporting requirements - Green building standards (LEED, ENERGY STAR) |
| Heating, Ventilating, and Air Conditioning (HVAC) | 12-18% | - Controls and optimization - Psychrometrics - Indoor air quality - HVAC system types and components - Load calculations - Heat transfer principles - Equipment efficiency ratings |
| Energy Auditing | 15-20% | - Types of energy audits (preliminary, detailed, investment-grade) - Audit report writing - Audit procedures and methodologies - Baseline establishment - Data collection and analysis - Metering and measurement equipment |
| Facilities Management | 8-12% | - Operations and maintenance best practices - Building automation systems (BAS) - Monitoring and targeting (M&T) - Preventive maintenance programs - Commissioning and re-commissioning |
AEE Certified Energy Manager (CEM) Sample Questions:
A facility owner is considering installing a new chiller. The installed project cost will be $300,000. The annual savings from the energy-saving project will be $45,000 for the 20-year life of the chiller. If an energy- service company requires a minimum 20% return on investment (pre-tax), will the energy-service company agree to finance this project?
- A. Yes
- B. No
Correct Answer: B 🗳️
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. 25%
- B. 100%
- C. 66%
- D. 15%
- E. 6%
Correct Answer: D 🗳️
Electricity costs SO. 10 per kWh. if an electric water heater has an efficiency of 95*6. what is the equivalent price of natural gas per Gigajoule for a natural gas water heater? The natural gas water heater has an efficiency of 95*t based on lower-heating value.
[Natural gas has an energy content of 36.400 K|/m3 (higher-heating value) and 32-760 K/m3 (lower-heating value).] SELECT THE CORRECT ANSWER
- A. $21 / GJ
- B. $25 / GJ
- C. $33 / GJ
- D. $15/GJ
Correct Answer: A 🗳️
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A desk lamp is located inside a windowless office. The office is heated during the winter and cooled during the summer. When the lamp is switched on, how much of the energy consumed by the lamp becomes heat in the office space?
- A. 25%
- B. 100%
- C. 120%
- D. 80%
Correct Answer: B 🗳️
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An outdoor parking area has 25 light poles. Each pole has a 420 Watt (ballast included) high-pressure sodium (HPS) luminaire. The parking area lights are illuminated 4,500 hours per year and the electricity cost is $0.08
/kWh. What is the annual energy cost reduction if each luminaire is replaced with a 220-Watt (driver included) LED luminaire?
- A. $1,200/yr
- B. $1,800/yr
- C. $2,600/yr
- D. $1,500/yr
- E. $2,200/yr
Correct Answer: B 🗳️
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