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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Energy Auditing | 15-20% | - Audit report writing - Types of energy audits (preliminary, detailed, investment-grade) - Audit procedures and methodologies - Baseline establishment - Data collection and analysis - Metering and measurement equipment |
| Topic 2: Environmental and Regulatory Compliance | 5-10% | - Energy reporting requirements - Sustainability reporting - EPA regulations (Clean Air Act, Clean Water Act) - Carbon footprint calculation - Green building standards (LEED, ENERGY STAR) |
| Topic 3: Renewable Energy Technologies | 8-12% | - Solar photovoltaic systems - Geothermal systems - Solar thermal systems - Wind energy systems - Energy storage technologies - Biomass and bioenergy |
| Topic 4: Building Envelope | 8-12% | - Thermal envelope analysis - Daylighting and shading - Air leakage and infiltration - Windows and glazing systems - Insulation types and R-values |
| Topic 5: Heating, Ventilating, and Air Conditioning (HVAC) | 12-18% | - Equipment efficiency ratings - Heat transfer principles - Psychrometrics - Controls and optimization - Load calculations - HVAC system types and components - Indoor air quality |
| Topic 6: Energy Project Implementation | 8-12% | - Project financing models - Project risk management - Energy service companies (ESCOs) - Performance contracting (ESPC) - Implementation strategies - Measurement and verification (M&V) |
| Topic 7: Energy Accounting and Economics | 10-15% | - Life cycle cost analysis (LCCA) - Financial analysis techniques (ROI, NPV, IRR) - Energy price forecasting - Energy cost accounting and allocation - Utility rate structures and tariffs |
| Topic 8: Facilities Management | 8-12% | - Monitoring and targeting (M&T) - Operations and maintenance best practices - Building automation systems (BAS) - Commissioning and re-commissioning - Preventive maintenance programs |
| Topic 9: Electric Power Systems | 10-15% | - Standby power systems - Lighting systems and controls - Motors and drives - Power distribution systems - Harmonics and power quality - Power factor correction |
TopexamのCEM PDF学習試験のガイダンスのもとで、認定資格を簡単に取得できる可能性が高いことはよく知られています。 しかし、証明書を取得した後の利点を知っている人はほとんどいないと思います。 基本的に、AEEのCEM模擬テストを使用した認定の利点は、3つの側面に分類できます。 まず、認定資格を取得すると、大企業にアクセスでき、中小企業では得られない雇用機会を増やすことができます。 次に、CEM準備資料を使用して、CEM証明書と高給を取得できます。
質問 # 79
The set point for the chiller supply water temperature is varied as a function of the thermal demand for space cooling. What do you call this control strategy?
正解:D
質問 # 80
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)?
正解:B
質問 # 81
Which of the following statements regarding refrigerants is NOT correct?
5ELECT THE CORRECT ANSWER
正解:E
解説:
Understanding the environmental impacts of various refrigerants is crucial for energy managers. Let's analyze each statement:en.wikipedia.org A:R-407C is a blended Hydro Fluoro Carbon or near Azeotropic mixture, and can be used as a replacement for R-22 in commercial applications:This statement is correct. R-407C is a blend of HFCs designed to replace R-22 in air conditioning systems.
B:R-11 and R-12 are Chloro Fluoro Carbons with significant ozone depleting potential:This is correct. R-
11 and R-12 are CFCs known for their high ozone depletion potential.
C:R-1234yf is a Hydro Fluoro Olefin with zero ozone depleting potential, and little global warming potential:Correct. R-1234yf is an HFO with negligible ozone depletion and low global warming potential.
D:R-22 is a Hydro Chloro Carbon with significant ozone depleting potential and significant global warming impact:This statement is incorrect.R-22 is a Hydrochlorofluorocarbon (HCFC), not a Hydro Chloro Carbon.While it does have ozone-depleting potential, its global warming potential is considered moderate, not significant.
E:R-32 and R-134a are Hydro Fluoro Carbons with zero ozone depleting potential, and significant global warming impact:This is correct. Both R-32 and R-134a are HFCs with no ozone depletion potential but have considerable global warming potential.
Conclusion:
The incorrect statement is D. R-22 is a Hydro Chloro Carbon with significant ozone depleting potential and significant global warming impact. Therefore, the correct answer is D.
質問 # 82
When comparing two similar facilities, you see that the facility with newer, higher-efficiency equipment has a higher energy-use index [EUI] (kJ/m²-yr). What might be the cause?
正解:B
解説:
1) CEM Principle: Equipment Efficiency # System Performance
The AEE CEM Body of Knowledge stresses that higher-efficiency equipment does not guarantee lower energy use unless systems are:
* Properly commissioned
* Correctly controlled
* Operated as designed
2) Evaluation of Options
* A. The facility with the higher EUI is in need of commissioning #
* Most common cause per CEM case studies: controls, sequences, and integration not optimized.
* B. The facility with the lower EUI is in need of commissioning #
* Lower EUI indicates better performance.
* C. The facility with the lower EUI requires a performance contract #
* No evidence supports this.
* D. The facility with the higher efficiency equipment should have a higher EUI #
* Contradicts energy efficiency principles.
* E. The facility with the higher EUI requires a SCADA system #
* Monitoring alone does not correct poor performance.
CEM Exam Insight
Commissioning ensures that high-efficiency equipment actually delivers expected energy performance.
質問 # 83
Calculate the monthly electric bill for a customer that used 400 kW and 75,000 kwh during one month. Use the following declining block structure for a monthly bill:
SELECT THE CORRECT ANSWER
正解:D
解説:
We need to calculate the monthly electric bill based on the given pricing structure.
Step 1: Identify Charges from the Table
* Customer charge: $50/month
* Peak demand charge: $10/kW-month
* Electric consumption charges:
* First 25,000 kWh @ $0.06/kWh
* Excess (75,000 - 25,000) = 50,000 kWh @ $0.05/kWh
* Tax: 20% of total
質問 # 84
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今の競争の激しいのIT業界の中にAEE CEM認定試験に合格して、自分の社会地位を高めることができます。弊社のIT業で経験豊富な専門家たちが正確で、合理的なAEE CEM「Certified Energy Manager (CEM)」認証問題集を作り上げました。 弊社の勉強の商品を選んで、多くの時間とエネルギーを節約こともできます。
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