AEE CEM

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AEE CEM Exam Syllabus Topics:

AEE Certified Energy Manager (CEM) Sample Questions:

1. Which pump system listed below is most likely the best application for converting to variable-speed drive?

A) Pump system with bypass control transferring liquid from an intake dam to a process in production
B) Pump system with throttle fully open circulating liquid in a closed loop cooling system
C) Pump system with on-off control transferring liquid vertically from a low tank to a higher tank
D) Pump system with parallel rotary lobe pumps in a rebar quenching application with a static head of 80m

2. The temperature in an unconditioned mechanical room is found to typically be around 23°C warmer than ambient (outside) air. If the air intake of an air compressor located in the mechanical room is routed through a nearby wall so that the cooler outside air is fed directly to the air compressor's intake, the compressor's energy requirement will now be expected to:
SELECT THE CORRECT ANSWER

A) Increase by 3.8%
B) Increase by 7.6%
C) Decrease by 7.6%
D) Remain the same
E) Decrease by 3.8%

3. Which pump system listed below is most likely the best application for converting to variable-speed drive for energy savings?
SELECT THE CORRECT ANSWER

A) Centrifugal pump varying its flowrate with bypass control, circulating liquid in a closed loop cooling system
B) Reciprocating pump with on-off control, transferring liquid vertically for one hour per day
C) Positive displacement rotary lobe pumps in parallel, in a constant flow rebar quenching application with a static head of 80 m and negligible friction head
D) Piston pump operating at full capacity with throttle valve fully open, transferring liquid from an underground dam to the roof of a building

4. Insulation has a thermal conductivity of 0.04 Watt/(m-°C). What is the R-value for this insulation when it is 5- cm thick?

A) 20 (m²-°C)/Watt
B) 20 Watt/(m²-°C)
C) 2.20 Watt/m²
D) 0.8 (m²-°C)/Watt
E) 1.25 (m²-°C)/Watt

5. What will commonly be the most appropriate expected lamp life for a fluorescent lamp fitted with an occupancy sensor, that is operational in a school?
SELECT THE CORRECT ANSWER

A) 1,000 operational hours
B) 50,000 operational hours
C) 20,000 calendar hours
D) 18,000 operational hours
E) 50,000 calendar hours

Solutions: