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AEE Certified Energy Manager (CEM) Sample Questions:

1. Which of the following best describes a thermally-light building?

A) A single-story office building where the load on the heating and cooling system is proportional to the outside air (ambient) temperature
B) A building filled with manufacturing and process equipment
C) A computer data center housing multiple internet server racks
D) An underground storage facility

2. A desk lamp is located inside a windowless office. The office is heated during the winter and cooled during the summer. When the lamp is switched on, how much of the energy consumed by the lamp becomes heat in the office space?

A) 80%
B) 25%
C) 100%
D) 120%

3. If outside air has a temperature of 30°C dry bulb and 20°C wet bulb, what is the dew point temperature?

A) 25°C
B) 20°C
C) 30°C
D) 15°C

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

5. What is the main cause of low power factor?

A) Harmonics
B) Low-load induction motors
C) Fluorescent lighting
D) Solar flares
E) Computers and electronic equipment

Solutions: