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AEE CEM Exam Syllabus Topics:

AEE Certified Energy Manager (CEM) Sample Questions:

1. A 50-kW induction motor (1,500 rpm synchronous speed) has a nameplate full-load rotational speed of 1,455 rpm. Field measurements show the actual rotational speed is 1,475 rpm. Using the slip method, calculate the partial load factor of the motor.

A) 98%
B) 101%
C) 80%
D) 56%
E) 46%

2. A compressed-air distribution system has one section that frequently has low pressure when demand for compressed air is high. How can you resolve the problem without increasing energy consumption?

A) Install a receiver tank near the remote load experiencing low pressure
B) Answers B and C
C) Raise the supply air pressure
D) Decrease the distribution pipe size to the remote load experiencing low pressure

3. A refrigerant-to-water heat exchanger can be added to air-conditioning equipment to heat water using the waste heat in the vapor compression refrigerant cycle. Where is this type of heat exchanger located in the refrigerant loop?

A) After the evaporator coil, before the compressor
B) After the condenser coil, before the thermal expansion valve
C) After the compressor, before the condenser coil
D) After the expansion valve, before the evaporator coil

4. Using a degree-day base of 18°C, calculate the number of cooling degree days (CDD) if the outside temperature is a uniform 25°C throughout the year (365 days/year).

A) 2,975 CDD/yr
B) 1,955 CDD/yr
C) 2,555 CDD/yr
D) 2,250 CDD/yr
E) 1,845 CDD/yr

5. Which of the following is the primary benefit of integrating energy management with a Building Automation System (BAS) in a commercial facility?
SELECT THE CORRECT ANSWER

A) Simplified maintenance by eliminating the need for system diagnostics and fault detection
B) Increased energy efficiency by enabling real-time monitoring and automated adjustments to HVAC, lighting, and other systems
C) Reduced initial installation costs compared to traditional control systems
D) Enhanced tenant satisfaction through manual lighting control in individual zones

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