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Latest CEM Exam Question, CEM Certificate Exam

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AEE CEM Certificate Exam | CEM Valid Practice Questions

Latest AEE CEM Dumps are here to help you to pass your AEE Certification exam with VCEDumps' valid, real, and updated CEM Exam Questions with passing guarantee. The AEE CEM certification is a valuable certificate that is designed to advance the professional career. With the Certified Energy Manager (CEM) (CEM) certification exam seasonal professionals and beginners get an opportunity to demonstrate their expertise. The Certified Energy Manager (CEM) exam recognizes successful candidates in the market and provides solid proof of their expertise.

AEE Certified Energy Manager (CEM) Sample Questions (Q111-Q116):

NEW QUESTION # 111
Exhaust gases from an industrial furnace flow through a heat-recovery steam generator, which generates medium-pressure steam. This steam is used in a steam turbine to generate shaft power driving a fan. Which type of combined heat and power (CHP) cycle does this process describe?

A. This cycle is not a combined heat and power system
B. Bottoming cycle
C. Topping cycle
D. Combined cycle

Answer: B

NEW QUESTION # 112
A heat pump water heater has an annual average coefficient of performance (COP) of 2.1 and heats water from 15°C to 50°C. Hot water use is 100 liters per day, 365 days/yr. The electricity cost is $0.10/kWh. What is the annual water heating cost? (The specific heat of water (C) is 4.2 kJ/kg-°C.)

A. $70.97/year
B. $52.20/year
C. $88.29/year
D. $44.88/year
E. $64.66/year

Answer: E

NEW QUESTION # 113
Using the lumen method, calculate the number of luminaires (fixtures) required to light a room to 200 lux.
Each luminaire has 2 fluorescent lamps, 3,000 lumens per lamp. The room is 20 meters by 30 meters. The total light loss factor (LLF) is 0.70 and the luminaire coefficient of utilization (CU) is 0.80.

A. 60 luminaires
B. 36 luminaires
C. 24 luminaires
D. 48 luminaires
E. 12 luminaires

Answer: C

NEW QUESTION # 114
Thermal scans of electrical equipment are useful for:

A. Measuring the load on a refrigerant system
B. Locating a loose electrical connection
C. Locating areas of high power factor
D. Reading current carrying capacity of installed conductors

Answer: B

Explanation:
Step 1: Purpose of Thermal Scans
Thermal scans (infrared thermography) detecttemperature variationsin electrical components.
* Loose connectionsincrease resistance # causeoverheating, which isvisible in thermal scans.
Step 2: Analysis of Each Option
* A. Locating areas of high power factor#Incorrect#Power factor is measured with power meters.
* B. Reading current-carrying capacity of conductors#Incorrect#Measured using ammeters and engineering data.
* C. Locating a loose electrical connection#Correct#Loose connections causeheat buildup, easily detected with thermal scans.
* D. Measuring the load on a refrigerant system#Incorrect#Refrigerant loads are measured using pressure sensors and flow meters.
Thus, the correct answer isC. Locating a loose electrical connection.

NEW QUESTION # 115
How much fuel is required to heat 50 kg water from 20°C water to 200°C saturated steam? Assume the boiler is 80% efficient (based on the higher-heating value of the fuel).

A. 511.2 MJ
B. 169.3 MJ
C. 127.2 MJ
D. 210.5 MJ

Answer: B

NEW QUESTION # 116
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