Aee certshero free Cem Updates by Bernard q13 vce pdf

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AEE CEM Exam Overview :

Exam Name:	Certified Energy Manager (CEM)
Exam Code:	CEM Dumps
Vendor:	AEE	Certification:	Energy Management
Questions:	144 Q&A's	Shared By:	bernard

Question 36

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.)

Options:

$44.88/year

$52.20/year

$64.66/year

$70.97/year

$88.29/year

Discussion

Question 37

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.

Options:

12 luminaires

24 luminaires

36 luminaires

48 luminaires

60 luminaires

Discussion

Question 38

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?

Options:

Yes

Discussion

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Question 39

Which of the following is/are benefits of commissioning?

Options:

Ensures a system is designed to operate as intended

Ensures a system is installed to operate as intended

Ensures staff know how to operate a system as intended

Ensures staff know how to maintain a system as intended

All of the above

Discussion

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