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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Electric Power Systems | 10-15% | - Motors and drives - Power distribution systems - Power factor correction - Lighting systems and controls - Standby power systems - Harmonics and power quality |
| Topic 2: Energy Project Implementation | 8-12% | - Measurement and verification (M&V) - Project financing models - Project risk management - Energy service companies (ESCOs) - Implementation strategies - Performance contracting (ESPC) |
| Topic 3: Energy Accounting and Economics | 10-15% | - Energy cost accounting and allocation - Utility rate structures and tariffs - Financial analysis techniques (ROI, NPV, IRR) - Energy price forecasting - Life cycle cost analysis (LCCA) |
| Topic 4: Renewable Energy Technologies | 8-12% | - Solar photovoltaic systems - Energy storage technologies - Biomass and bioenergy - Wind energy systems - Geothermal systems - Solar thermal systems |
| Topic 5: Heating, Ventilating, and Air Conditioning (HVAC) | 12-18% | - Indoor air quality - Load calculations - Heat transfer principles - Psychrometrics - Equipment efficiency ratings - HVAC system types and components - Controls and optimization |
| Topic 6: Environmental and Regulatory Compliance | 5-10% | - EPA regulations (Clean Air Act, Clean Water Act) - Green building standards (LEED, ENERGY STAR) - Energy reporting requirements - Carbon footprint calculation - Sustainability reporting |
| Topic 7: Building Envelope | 8-12% | - Insulation types and R-values - Thermal envelope analysis - Air leakage and infiltration - Windows and glazing systems - Daylighting and shading |
| Topic 8: Energy Auditing | 15-20% | - Data collection and analysis - Types of energy audits (preliminary, detailed, investment-grade) - Baseline establishment - Audit procedures and methodologies - Metering and measurement equipment - Audit report writing |
| Topic 9: Facilities Management | 8-12% | - Building automation systems (BAS) - Preventive maintenance programs - Operations and maintenance best practices - Commissioning and re-commissioning - Monitoring and targeting (M&T) |
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NEW QUESTION # 102
Problems Caused by Harmonic Distortion
Which of the following problems is unlikely to be caused by harmonic distortion?
SELECT THE CORRECT ANSWER
Answer: C
NEW QUESTION # 103
Which of the following is/are benefits of commissioning?
Answer: D
Explanation:
1) Definition of Commissioning (CEM Standard)
According to the AEE Certified Energy Manager (CEM) Body of Knowledge and the ASHRAE/AEE commissioning guidance referenced in CEM training, commissioning (Cx) is a systematic quality assurance process applied throughout the design, installation, startup, and operation phases of a facility to ensure that building systems perform as intended by the owner and designer.
2) Evaluation of Each Option
* A. Ensures a system is designed to operate as intended
* Commissioning includes design review to verify that the design intent, owner's project requirements (OPR), and basis of design (BOD) are aligned.
* CEM materials explicitly include design-phase commissioning as a benefit.
* B. Ensures a system is installed to operate as intended
* Construction and installation verification is a core commissioning activity.
* Functional performance testing confirms systems are installed and perform per design.
* C. Ensures staff know how to operate a system as intended
* Commissioning requires operator training, review of control sequences, and system demonstrations.
* AEE CEM guidance highlights improved operations staff competence as a major benefit.
* D. Ensures staff know how to maintain a system as intended
* Commissioning includes delivery and review of O&M manuals, maintenance procedures, and hands-on training.
* This reduces long-term energy waste and equipment degradation.
3) CEM Exam Key Concept
Commissioning improves energy performance, system reliability, occupant comfort, and staff capability by verifying design intent, installation quality, and operational readiness.
NEW QUESTION # 104
The temperature in an unconditioned mechanical room is found to typically be around 23°C warmer than ambient (outside) air. If the air intake of an air compressor located in the mechanical room is routed through a nearby wall so that the cooler outside air is fed directly to the air compressor's intake, the compressor's energy requirement will now be expected to:
SELECT THE CORRECT ANSWER
Answer: B
NEW QUESTION # 105
How much energy (kJ) is required to heat 2 kg of water from 25°C to 2 kg of water at 100°C? (The specific heat of water (C) is 4.2 kJ/kg-°C. Assume no system losses.)
Answer: D
NEW QUESTION # 106
A building is conditioned by an air-conditioning and heating system. What technology can directly prevent simultaneous heating and cooling of the space?
Answer: E
NEW QUESTION # 107
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