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AEE CEM Exam Syllabus Topics:

AEE Certified Energy Manager (CEM) Sample Questions:

1. In a typical compressed air system, energy can be saved by which of the following actions?

A) Raising the air pressure
B) Move the inlet air filter to a warmer location
C) Reducing the capacity of the compressed air receiver tanks
D) Decreasing supply air pressure
E) Reducing the air distribution pipe size

2. If the initial design process includes group relamping, how can this reduce the number of lamps required to illuminate a space?

A) Group relamping requires using larger Wattage lamps, which means fewer lamps are required to illuminate a space
B) Group relamping reduces factors that contribute to light loss, which means fewer lamps are required to illuminate a space
C) Group relamping improves the room cavity ratio, which means fewer lamps are required to illuminate a space
D) Group relamping reduces the overall amount of lamp breakages, which means fewer lamps are required to illuminate a space.
E) Group relamping cannot reduce the number of lamps required to illuminate a space

3. What type of passive heat exchanger can wrap around an evaporator coil to precool entering air and reheat the air after the cooling coil without adding more moisture to the supply air stream?

A) Run-around coil
B) Desiccant heat wheel
C) Plate and frame
D) Heat pipe
E) Heat pump

4. A cooling tower delivers water to a chilled-water plant at 21°C. The outside ambient air conditions are 19°C dry bulb, 50% relative humidity. Using the psychrometric chart, what is the approach temperature of the cooling tower outlet water temperature to the ambient air wet-bulb temperature?
SELECT THE CORRECT ANSWER

A) 10°C
B) 8°C
C) 6°C
D) 4°C

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

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

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