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AEE CEM Exam Syllabus Topics:

AEE Certified Energy Manager (CEM) Sample Questions:

1. When comparing two similar facilities, you see that the facility with newer, higher-efficiency equipment has a higher energy-use index [EUI] (kJ/m²-yr). What might be the cause?

A) The facility with the higher EUI requires a supervisory control and data acquisition (SCADA) system
B) The facility with the higher EUI is in need of commissioning
C) The facility with the lower EUI requires a performance contract
D) The facility with the lower EUI is in need of commissioning
E) The facility with the higher efficiency equipment should have a higher EUI

2. The International Performance Measurement and Verification Protocol (IPMVP) has how many categories (method options) to determine the performance of an energy- or water-consuming system?

A) 6 Options
B) 3 Options
C) 4 Options
D) 2 Options
E) 5 Options

3. Problems Caused by Harmonic Distortion
Which of the following problems is unlikely to be caused by harmonic distortion?
SELECT THE CORRECT ANSWER

A) Torque pulsation in motors
B) Circulating currents in motor shafts
C) "Nuisance" tripping of circuit breakers
D) Degraded power factor C. Lighting "flicker"

4. A gas-fired boiler is operating with 31.9% excess air. A feedwater economizer is used to reduce the stack temperature rise from 310°C to 160°C. Using the natural gas combustion efficiency tables in your workbook, find the energy savings from the economizer as a percentage of historical fuel consumption.

A) 9.3%
B) 3.1%
C) 1.2%
D) 7.1%
E) 5.8%

5. An air-conditioning unit delivers 10,000 kJ/h (thermal cooling). The equipment uses single-phase electrical power at 220-volt and 5.25 amps with a power factor of 100%. Calculate the coefficient of performance (COP).

A) 2.4
B) 13.2
C) 3.2
D) 16.1
E) 6.2

Solutions: