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Real CEM Questions - Remove Your Exam Fear

The web-based AEE CEM Practice Exam is compatible with all operating systems, including Mac, Linux, iOS, Android, and Windows. It is a browser-based Certified Energy Manager (CEM) (CEM) practice exam that works on all major browsers, including Chrome, Firefox, Safari, Internet Explorer, and Opera. This means that you won't have to worry about installing any complicated software or plug-ins.

Achieving the Certified Energy Manager (CEM) (CEM) certification can significantly impact your career progression and earning potential. This certification showcases your expertise and knowledge to employers, making you a valuable asset in the AEE CEM industry. With the rapidly evolving nature of the AEE world, staying up-to-date with the latest technologies and trends is crucial. The CEM Certification Exam enables you to learn these changes and ensures you remain current in your field.

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CEM Real Question - CEM Exam Dumps Collection

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AEE Certified Energy Manager (CEM) Sample Questions (Q100-Q105):

NEW QUESTION # 100
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. Desiccant heat wheel
B. Heat pipe
C. Heat pump
D. Run-around coil
E. Plate and frame

Answer: B

NEW QUESTION # 101
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?

A. Outside air wind speed
B. Poor or missing weatherstripping
C. Outside air temperature
D. Fuel type used for heating and cooling
E. Building height

Answer: D

NEW QUESTION # 102
Why do electric utility companies transmit power at high voltages?
SELECT THE CORRECT ANSWER

A. Higher voltages are more stable
B. Higher voltages are safer
C. Transmission power losses (12R) are less
D. Electrical frequency is more stable

Answer: C

Explanation:
Electric utility companies transmit power at high voltages primarily to reduce transmission power losses, which are proportional to the square of the current (I²) multiplied by the resistance (R) of the transmission lines. This relationship is expressed by the formula for power loss: P_loss = I²R.
Key Points:
* Power Loss and Current Relationship:Power losses in transmission lines are directly proportional to the square of the current flowing through them. Reducing the current decreases these losses significantly.
* High Voltage Transmission:By increasing the transmission voltage, the current required to deliver the same amount of power decreases. This is because power (P) is the product of voltage (V) and current (I): P = VI. For a given power level, increasing voltage allows for a corresponding decrease in current.
* Reduced I²R Losses:Lower current results in reduced I²R losses, enhancing the efficiency of power transmission over long distances.
Conclusion:
Transmitting power at high voltages minimizes transmission losses, making it the most efficient method for long-distance electrical power delivery. Therefore, the correct answer is C. Transmission power losses (I²R) are less.

NEW QUESTION # 103
A facility replaces a natural gas heating system rated at 10,000 kJ/h and 80% efficiency with an electric heat pump rated at 10,000 kJ/h and a coefficient of performance (COP) of 2.3. Will this project also reduce the annual energy utilization index (EUI) for the facility?

A. Yes
B. No

Answer: A

Explanation:
The Energy Utilization Index (EUI) is measured astotal energy consumption per unit area.
Step 1: Compare Energy Inputs for Both Systems
* Existing Natural Gas System:
* Heating output:10,000 kJ/h
* Efficiency:80%
* Required input energy
A screenshot of a math test AI-generated content may be incorrect.

NEW QUESTION # 104
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.

A. $556,945
B. $250,000
C. $630,300
D. $756,113

Answer: A

NEW QUESTION # 105
......

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