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AEE CEM Exam Syllabus Topics:

AEE Certified Energy Manager (CEM) Sample Questions:

1. In an ammonia-water absorption chiller, what material is the refrigerant?

A) Lithium bromide
B) Water
C) Some form of fluorocarbon
D) Ammonia

2. When should commissioning be included in the design and construction of a facility?

A) When installation of the energy systems begins
B) When the design is finalized
C) When construction is finalized
D) When the planning process begins
E) When the occupancy permit is accepted

3. A three phase, 380-volt system, has the following voltage measurements:
Va = 375 volts
Vb = 380 volts
Vc = 391 volts
Calculate the percent voltage imbalance.

A) 5.5%
B) 2.4%
C) 1.1%
D) 3.4%
E) 6.2%

4. Which of the following International Performance Measurement and Verification Protocol (IPMVP) options would you use to verify annual energy savings in a project that upgraded lighting in a large manufacturing plant?

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

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

Solutions: