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AEE CEM Exam Syllabus Topics:

AEE Certified Energy Manager (CEM) Sample Questions:

1. According to ISO 50001. when performing internal audits on the energy management system in an organization the internal auditor should do which of the following?
SELECT THE CORRECT ANSWER

A) Review the written procedures related to the area under audit
B) Look for opportunities for energy improvement and to minimize bureaucracy in the energy management system
C) All of the above
D) Focus on the areas of significant energy use
E) Assess actual activities as practiced against what the written procedures state

2. 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) $64.66/year
C) $52.20/year
D) $88.29/year
E) $44.88/year

3. A controlled valve is full closed when it gets a signal of 4 mA. The valve is full open when it gets a signal of
20 mA. With a control signal of 8 mA, what is the valve position?

A) 45% open
B) 25% open
C) 12.5% open
D) 82% open
E) 75% open

4. What is the purpose of top (or skimming) blowdown in a steam boiler?

A) To dilute the level of impurities in the boiler water thus allowing the addition of cleaner make up water
B) To reduce the buildup of sediment in the boiler
C) To reduce the buildup of feedwater chemicals in the boiler
D) To flush out the boiler room drain system

5. 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) 12 luminaires
B) 36 luminaires
C) 48 luminaires
D) 24 luminaires
E) 60 luminaires

Solutions: