TOP DUMPS CEM PDF | HIGH PASS-RATE AEE CEM RELIABLE STUDY QUESTIONS: CERTIFIED ENERGY MANAGER (CEM)

Top Dumps CEM PDF | High Pass-Rate AEE CEM Reliable Study Questions: Certified Energy Manager (CEM)

Top Dumps CEM PDF | High Pass-Rate AEE CEM Reliable Study Questions: Certified Energy Manager (CEM)

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Tags: Dumps CEM PDF, CEM Reliable Study Questions, CEM Latest Learning Materials, Valid CEM Test Simulator, CEM Latest Mock Exam

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AEE CEM Reliable Study Questions & CEM Latest Learning Materials

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AEE Certified Energy Manager (CEM) Sample Questions (Q80-Q85):

NEW QUESTION # 80
What type of passive heat exchanger can wrap around an evaporator coil to precool entering air and reheat the air after the cooling coil without adding more moisture to the supply air stream?

  • A. Heat pump
  • B. Plate and frame
  • C. Desiccant heat wheel
  • D. Heat pipe
  • E. Run-around coil

Answer: D


NEW QUESTION # 81
According to the institute of Electrical and Electronic Engineers (IEEE) standard 519. "Recommended Practices and Requirements for Harmonic Control in Electrical Power Systems." the maximum total harmonic distortion (THD) for general low voltage systems less than 600 votts) should be:
SELECT THE CORRECT ANSWER

  • A. Less than 5%
  • B. Less than 10%
  • C. Less than 20%
  • D. Less than 1%
  • E. Greater than 1%

Answer: A

Explanation:
The Institute of Electrical and Electronics Engineers (IEEE) Standard 519, titled "Recommended Practices and Requirements for Harmonic Control in Electrical Power Systems," sets forth guidelines to maintain the quality of electrical power by limiting harmonic distortions. According to IEEE 519, for general low-voltage systems (defined as systems with a voltage less than 600 volts), the Total Harmonic Distortion (THD) of the voltage waveform should not exceed 5%. This threshold ensures the reliable operation of electrical equipment and minimizes potential issues such as overheating or malfunctioning caused by excessive harmonics.
Therefore, the correct answer is C. Less than 5%.


NEW QUESTION # 82
What is the main reason for using instrumentation in energy audits?

  • A. Support the local economy
  • B. Save energy
  • C. Determine energy flows
  • D. Validate utility energy bills

Answer: C

Explanation:
Instrumentation in energy audits serves multiple functions, but theprimary reasonis to determine energy flows.
* Measuring Energy Flows:
* Instrumentation helpsquantify energy usein different systems, such as electricity, HVAC, and industrial processes.
* It helps identifywhere energy is used, lost, or wasted.
* Supporting Energy Conservation Efforts:
* By measuring energy flows, auditors canidentify inefficienciesand recommend solutions.
* Other Options Analysis:
* Saving energy (A):A result of energy audits, not the main purpose.
* Validating utility bills (C):Important but secondary to understanding energy flows.
* Supporting the local economy (D):Not relevant.
Thus, the correct answer isB. Determine energy flows.


NEW QUESTION # 83
What is the purpose of monitoring energy consumption?
SELECT THE CORRECT ANSWER

  • A. To support analysis of energy information
  • B. All of the above
  • C. To establish a basis of management control
  • D. To establish when and why there is a deviation in energy consumption patterns

Answer: B

Explanation:
Monitoring energy consumption is a critical component of effective energy management. It serves multiple purposes that collectively enhance an organization's ability to control energy use, identify inefficiencies, and implement improvements. These purposes include:
* Establishing a Basis of Management Control:By systematically tracking energy consumption, organizations create a foundation for managing energy use effectively. This data enables the setting of benchmarks and performance indicators, facilitating informed decision-making and strategic planning.
* Identifying Deviations in Energy Consumption Patterns:Continuous monitoring allows for the detection of anomalies or unexpected changes in energy usage. Recognizing when and why these deviations occur is essential for diagnosing potential issues, such as equipment malfunctions or operational inefficiencies, and addressing them promptly.
* Supporting Analysis of Energy Information:Comprehensive energy data collection supports detailed analysis, aiding in understanding consumption trends, evaluating the impact of energy conservation measures, and identifying opportunities for further efficiency improvements.
Given that monitoring energy consumption fulfills all the above functions, the correct answer is D. All of the above.


NEW QUESTION # 84
If a boiler cycles on and off too frequently, what control can you adjust to reduce the number of times a boiler cycles on and off?

  • A. Increase the controller set point
  • B. Increase the controller differential
  • C. Reduce the controller differential

Answer: B


NEW QUESTION # 85
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