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| Section | Objectives |
|---|---|
| Measurement and Verification | - M&V principles and protocols - Energy savings calculation methods |
| Energy Audits and Management | - Energy audit levels and procedures - Data collection and analysis methods - Energy management planning |
| Lighting Systems | - Lighting efficiency improvement strategies - Lighting technologies and controls |
| Electrical Systems | - Power factor correction - Motors and drives efficiency - Electrical distribution systems |
| Energy Accounting and Economics | - Energy budgeting and benchmarking - Life-cycle cost analysis and financial evaluation - Energy cost analysis and tariff structures |
| Renewable Energy and Sustainability | - Sustainable energy management practices - Renewable energy integration |
| Mechanical and Thermal Systems | - Compressed air systems - Boilers, steam systems, and thermal distribution - HVAC systems and optimization |
これは高効率の時代であり、AEEおそらくCEM証明書を通じてのみ競争力を証明する方法が最も簡単です。 ただし、他の問題に巻き込まれる可能性があるため、多くの人にとって時間は限られています。Jpshiken CEM学習教材を使用すると、すべての問題が疑いなく簡単に解決されます。 信頼できる有効なCEM試験トレントだけでなく、最も柔軟な学習方法も提供できます。 また、他の多くのお客様と同様に、Certified Energy Manager (CEM)試験に合格する必要があることを確認できます。
質問 # 58
A piece of equipment costs $250,000 to buy and install. The annual operating cost for the equipment is
$50,000 per year. The equipment will last 15 years. After 15 years, the equipment will have no net salvage value. The annual interest rate is 10%. What is the present value of the life-cycle cost to own and operate the equipment? Use end-of-year annual cash flow analysis.
正解：A
質問 # 59
What is the Energy Use index (EUl) for a 4,000 m2 building that uses the following amounts of energy each year?
正解：D
解説：
質問 # 60
Which type of single-phase alternating-current motor has the highest efficiency?
正解：C
質問 # 61
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 # 62
A fully-loaded heat pump unit delivers 36-kW thermal heating with a power draw of 12-kW electric. What is the coefficient of performance (COP) at full load?
正解：C
質問 # 63
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