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AEE Certified Energy Manager (CEM) Sample Questions:

1. You are using a performance contract to finance the added cost of using more-efficient equipment in the construction of a new building. Which of the following International Performance Measurement and Verification Protocol (IPMVP) options would you use to verify annual energy savings?

A) Option A - Retrofit isolation: key parameter measurement
B) Option E - Stipulated savings
C) Option B - Retrofit isolation: all parameter measurement
D) Option C - Whole facility measurement
E) Option D - Calibrated simulation

2. The set point for the chiller supply water temperature is varied as a function of the thermal demand for space cooling. What do you call this control strategy?

A) Chilled-water temperature reset
B) Reheat coil reset
C) Condenser-water temperature reset
D) Night setback

3. An air conditioning unit cools make-up air from 25°C (dry bulb temperature) and 50% relative humidity down to 13°C. What type of heat has been removed from the air?

A) Latent heat
B) Sensible heat
C) No heat energy has been removed
D) Both sensible and latent heat

4. How does an enthalpy-based economizer control operate?

A) Using a constant mixed air proportion control sequence
B) Comparing the difference in dry-bulb air temperature measurements of the return air and the outdoor air
C) Using the dry-bulb temperature and relative humidity of both the outdoor-air and return-air
D) Measuring the outdoor air dry-bulb temperature and relative humidity

5. Which heat recovery device listed below can be used to preheat boiler make-up water using the heat energy from skimming blowdown?

A) Regenerative recouperator
B) Desiccant heat wheel
C) Shell and tube heat exchanger
D) Heat pipe

Solutions: