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

1. In general, which of the following is the least expensive and easiest way to finance an energy project?

A) Equity
B) Performance contract
C) Debt

2. A controller has a signal output that can range from 4 to 20 mA (milli-amperes). The controller regulates the output temperature from a three-way mixing valve from 5°C to 15°C. What is the control gain?

A) 1.4
B) 1.6
C) 0.8
D) 0.6
E) 1.2

3. 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) 2 kW
B) 1 kW
C) 4 kW
D) 5 kW
E) 8 kW

4. What type of heat exchanger is commonly built into AHU's or large RTU's, can be used to recover heat from exhaust air, and may cause cross-contamination between heat exchange fluids?
Select the Correct Answer

A) Dessiccant heat wheel
B) Run-around coil
C) Heat pipe
D) Plate and frame
E) Heat pump

5. A building has a 100 m² wall with an R-value of 14.4 (m²-C/W) in a climate with 3,500 heating degree days (HDD). The building heater is 85% efficient [based on the fuel's higher-heating value (HHV)]. The fuel cost is $5.00/GJ [based on the fuel's higher-heating value (HHV)]. What is the annual cost of the heat loss through the wall?

A) $10.56/yr
B) $14.44/yr
C) $12.35/yr
D) $16.22/yr
E) $22.56/yr

質問と回答：