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AEE Certified Energy Manager (CEM) Sample Questions:

1. For general indoor residential lighting applications, which light source can provide the most appropriate illumination with the highest efficacy?

A) Low-pressure sodium (LPS)
B) Light-emitting diode (LED)
C) Compact fluorescent (CFL)
D) Incandescent
E) Mercury vapor (MV)

2. A facility uses 250,000 kWh in a 31-day billing period. The peak demand in the billing period is 1,200 kW.
What is the facility partial load factor?

A) 33%
B) 45%
C) 77%
D) 28%
E) 66%

3. 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

4. The temperature in an unconditioned mechanical room is found to typically be around 23°C warmer than ambient air. If the air intake of an air compressor located in the mechanical room is routed through a nearby wall so that ambient air is fed directly to the air compressor's intake, what impact can be expected on the air compressor's energy requirement?

A) No measureable change in energy use
B) Decrease energy use by 3.8%
C) Increase energy use by 7.6%
D) Increase energy use by 3.8%
E) Decrease energy use by 7.6%

5. Which of the following is NOT a renewable-energy resource?
SELECT THE CORRECT ANSWER

A) Ocean waves
B) Crop residue
C) Geothermal heat
D) Saw grass
E) Shale gas

Solutions: