[Q28-Q52] Get New 2026 AEE CEM Exam Dumps Bundle On flat Updated Dumps!

QUESTION 28
A 100-kW electrical load has a power factor of 75%. What capacitance, in KVAR, will improve the power factor to 95%?

QUESTION 29
What type of heat transfer is reduced by adding insulation to the inside surface of a wall?

QUESTION 30
A steam trap with a 6-mm orifice in an 0.8-MPa steam system has failed open. The steam system is pressurized8.760 hours/yr. The steam cost is $15.00 /GJ. Using thetable below, what is the annualcost of the vented steam through the failed steam trap? ignore any condensate return issues.

[The question from the previous image, which was about calculating the annual cost of heat loss through a wall, but had a discrepancy between the calculated cost and the provided answer choices]

QUESTION 31
A gas-fired boiler is operating with 31.9% excess air. A feedwater economizer is used to reduce the stack temperature rise from 310°C to 160°C. Using the natural gas combustion efficiency tables in your workbook, find the energy savings from the economizer as a percentage of historical fuel consumption.

QUESTION 32
Which of the following is NOT included in commissioning documentation?

QUESTION 33
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?

QUESTION 34
When should commissioning be included in the design and construction of a facility?

QUESTION 35
Which of the following statements regarding refrigerants is NOT correct?
5ELECT THE CORRECT ANSWER

QUESTION 36
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?

QUESTION 37
If outside air has a temperature of 25°C dry bulb and 15°C wet bulb, what is the enthalpy of the air?

QUESTION 38
Which of the following statements regarding refrigerants is NOT correct?
5ELECT THE CORRECT ANSWER

QUESTION 39
Which of the following is a closed-loop controller?

QUESTION 40
A facility has the thermal cooling load profile shown in the table below. The utility rate traffic has an no-peak time-of-use period that begins at 10:00 a.m ends at 7:00 p.m. What chiller capacity (output) is required for a load-leveling operating strategy?

[Question from the previous image, which was about chiller capacity for load leveling, but the table was missing]

QUESTION 41
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?

QUESTION 42
Electricity costs SO. 10 per kWh. if an electric water heater has an efficiency of 95*6. what is the equivalent price of natural gas per Gigajoule for a natural gas water heater? The natural gas water heater has an efficiency of 95*t based on lower-heating value.
[Natural gas has an energy content of 36.400 K|/m3 (higher-heating value) and 32-760 K/m3 (lower-heating value).] SELECT THE CORRECT ANSWER

QUESTION 43
Which of the following statements best describe Demand Control Ventilation (DVC) in Building Automation Systems?

QUESTION 44
Using a degree-day base of 18°C, calculate the number of cooling degree days (CDD) if the outside temperature is a uniform 25°C throughout the year (365 days/year).

QUESTION 45
Which type of lighting control technique operates in “manual on” and “auto-off mode, and can be used in situations where there is brief occupancy that do not need lights on?

QUESTION 46
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?

QUESTION 47
A 55-kW motor at full load is used to drive a pump that generates 50 meters of head while pumping water at a rate of 5,000 liters per minute. Calculate the pump efficiency.

QUESTION 48
Electricity costs SO. 10 per kWh. if an electric water heater has an efficiency of 95*6. what is the equivalent price of natural gas per Gigajoule for a natural gas water heater? The natural gas water heater has an efficiency of 95*t based on lower-heating value.
[Natural gas has an energy content of 36.400 K|/m3 (higher-heating value) and 32-760 K/m3 (lower-heating value).] SELECT THE CORRECT ANSWER

QUESTION 49
How much energy (kJ) is required to heat 2 kg of water from 25°C to 2 kg of water at 100°C? (The specific heat of water (C) is 4.2 kJ/kg-°C. Assume no system losses.)

QUESTION 50
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

QUESTION 51
Which of the following steam turbines will likely not provide steam output at a useable temperature for industrial processes?

QUESTION 52
Which of the following is NOT a renewable-energy resource?
SELECT THE CORRECT ANSWER