AEE Certified Energy Manager (CEM) 認定 CEM 試験問題:

1. A 7 bar (gauge pressure) compressed air system has 5 leaks that are 3 mm in diameter and 3 leaks that are 6 mm in diameter. The compressed-air system is pressurized 8,760 hours per year. Electricity cost is $0.10
/kWh. What is the annual cost of the leaks in the compressed air system?

A) $48,480/yr
B) $30,910/yr
C) $18,150/yr
D) $25,220/yr
E) $56,500/yr

2. What is the definition of lamp life for a fluorescent lamp?

A) The time at which 70% of a large sample of lamps have failed
B) The time at which lumen output has reduced to 70% of the initial light output
C) The time at which 50% of a large sample of lamps have failed
D) The time at which lumen output has reduced by 50%
E) The time at which lamps begin to fail

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

4. How can you tell if steam traps in a steam distribution system may NOT be working correctly?

A) An increase in make-up water requirements relative to steam demand
B) No sound from inverted bucket steam traps
C) Robust flash steam rising from condensate receiver tank vent pipes
D) All of the above
E) Rapid chattering of disk steam traps

5. An air-conditioning system at full load is rated at 70-kW (thermal cooling) and has a coefficient of performance (COP) of 4.1. What is the electrical load at full load?

A) 23.3 kW
B) 70.0 kW
C) 46.7 kW
D) 17.1 kW
E) 35.0 kW

質問と回答：