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AEE Certified Energy Manager (CEM) Sample Questions:

1. The International Performance Measurement and Verification Protocol (IPMVP) has how many categories (method options) to determine the performance of an energy- or water-consuming system?

A) 4 Options
B) 2 Options
C) 3 Options
D) 6 Options
E) 5 Options

2. Some international electric utilities use 'net metering" for customers with renewable energy equipment, such as photovoltaic power panels. Which of the following best describes net metering with regard to excess power generation and utility billing practices?
SELECT THE CORRECT ANSWER

A) Accept excess electric energy generated by a customer's energy system, the value of which can offset the value of energy consumed by the customer over the net metering period
B) Accept excess electric energy generated by a customer's energy system but with no financial compensation for the energy fed into the utility's transmission system
C) Transmit electric energy generated by a customer's energy system so that the customer may sell the excess electricity to another company on the transmission system

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

4. In a typical compressed air system, energy can be saved by which of the following actions?

A) Reducing the air distribution pipe size
B) Decreasing supply air pressure
C) Move the inlet air filter to a warmer location
D) Reducing the capacity of the compressed air receiver tanks
E) Raising the air pressure

5. A heat pump water heater has an annual average coefficient of performance (COP) of 2.1 and heats water from 15°C to 50°C. Hot water use is 100 liters per day, 365 days/yr. The electricity cost is $0.10/kWh. What is the annual water heating cost? (The specific heat of water (C) is 4.2 kJ/kg-°C.)

A) $44.88/year
B) $52.20/year
C) $88.29/year
D) $64.66/year
E) $70.97/year

Solutions: