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| Section | Objectives |
|---|---|
| Topic 1: Mechanical and Thermal Systems | - Compressed air systems - HVAC systems and optimization - Boilers, steam systems, and thermal distribution |
| Topic 2: Electrical Systems | - Power factor correction - Electrical distribution systems - Motors and drives efficiency |
| Topic 3: Lighting Systems | - Lighting technologies and controls - Lighting efficiency improvement strategies |
| Topic 4: Energy Accounting and Economics | - Energy cost analysis and tariff structures - Energy budgeting and benchmarking - Life-cycle cost analysis and financial evaluation |
| Topic 5: Measurement and Verification | - Energy savings calculation methods - M&V principles and protocols |
| Topic 6: Renewable Energy and Sustainability | - Renewable energy integration - Sustainable energy management practices |
| Topic 7: Energy Audits and Management | - Energy management planning - Data collection and analysis methods - Energy audit levels and procedures |
>> Sample CEM Questions Answers <<
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NEW QUESTION # 141
At the end of a performance contract, who owns the equipment installed by the project?
Answer: C
Explanation:
Under a performance contract, ownership of installed equipment transfers to the facility owner (client) once contractual payments are completed.
CEM guidance emphasizes:
* ESCO guarantees savings
* Owner retains long-term benefits and asset ownership
NEW QUESTION # 142
Natural gas costs $4.80/GJ. How much does it cost to heat 500 liters of water from 18°C to 50°C using a natural gas water heater with an efficiency of 85%? [The efficiency and fuel price are both based on HHV.
The specific heat of water (C) is 4.2 kJ/kg-°C.]
Answer: C
Explanation:
To calculate the cost of heating water using natural gas:
Step 1: Compute Energy Required to Heat the Water
Given:
* Mass of water= 500 L = 500 kg
* Temperature rise (#T)= 50°C - 18°C = 32°C
* Specific heat of water (Cp)= 4.2 kJ/kg-°C
Energy Required (Q)=m×Cp×#T
=500×4.2×32
=67,200 kJ=67.2 MJ
A white paper with black text and numbers AI-generated content may be incorrect.
NEW QUESTION # 143
Infiltration (inward air leakage) in a building is dependent on several factors. Which of the following is least likely to affect or influence infiltration in a building?
Answer: A
NEW QUESTION # 144
A cooling tower is delivering water to a chilled-water plant. The cooling tower outlet temperature has a 6°C approach temperature to the ambient air, wet-bulb temperature. The outside air conditions are 20°C dry bulb,
60% relative humidity. Using the psychrometric chart, at what temperature can the cooling tower deliver water to the chilled-water plant?
Answer: B
NEW QUESTION # 145
Using an interest rate of 15%, an energy project has a net-present value (NPV) of $3,500. Which statement is true about the project's internal rate of return (IRR)?
Answer: D
NEW QUESTION # 146
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