AEE Certified Energy Manager (CEM) Sample Questions:
1. According to ISO 50001. when performing internal audits on the energy management system in an organization the internal auditor should do which of the following?
SELECT THE CORRECT ANSWER
A) Focus on the areas of significant energy use
B) Review the written procedures related to the area under audit
C) Look for opportunities for energy improvement and to minimize bureaucracy inthe energy management system
D) Assess actual activities as practiced against what the written procedures state
E) All of the above
2. If the temperature difference across an external wall is 20°C and the heat flow across the wall is 2.5 Watts/m², calculate the insulation value of the wall (including inside and outside air films)?
A) R = 6 m²-°C/W
B) R = 4 m²-°C/W
C) R = 12 m²-°C/W
D) R = 10 m²-°C/W
E) R = 8 m²-°C/W
3. 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) Decrease the distribution pipe size to the remote load experiencing low pressure
B) Raise the supply air pressure
C) Answers B and C
D) Install a receiver tank near the remote load experiencing low pressure
4. A 75-kW induction motor operates at 80% partial load and 88% efficiency. A new high-efficiency 75-kW motor can be installed that will operate at 95% efficiency (also at 80% partial load). What is the reduction in electric power demand?
A) 8 kW
B) 4 kW
C) 5 kW
D) 1 kW
E) 2 kW
5. Calculate the monthly electric bill for a customer that used 400 kW and 75,000 kwh during one month. Use the following declining block structure for a monthly bill:
SELECT THE CORRECT ANSWER
A) $3,280
B) $12,500
C) $7,850
D) $9,660
E) $4, 580
Solutions:
| Question # 1 Answer: E | Question # 2 Answer: E | Question # 3 Answer: D | Question # 4 Answer: B | Question # 5 Answer: D |
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