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Free AEE CEM Practice Exam with Questions & Answers | Set: 3

Questions 21

An air conditioning unit cools make-up air from 25°C (dry bulb temperature) and 50% relative humidity down to 13°C. What type of heat has been removed from the air?

Options:
A.

Sensible heat

B.

Latent heat

C.

Both sensible and latent heat

D.

No heat energy has been removed

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Questions 22

Which of the following color temperatures looks more like daylight?

Options:
A.

2,500 K

B.

3,500 K

C.

4,500 K

D.

6,500 K

Questions 23

A 50-Hz alternating current (AC) induction motor has 3 pole pairs (6 poles). What is the synchronous speed of the motor?

Options:
A.

600 rpm

B.

750 rpm

C.

1,000 rpm

D.

1,500 rpm

Questions 24

When comparing two similar facilities, you see that the facility with newer, higher-efficiency equipment has a higher energy-use index [EUI] (kJ/m²-yr). What might be the cause?

Options:
A.

The facility with the higher EUI is in need of commissioning

B.

The facility with the lower EUI is in need of commissioning

C.

The facility with the lower EUI requires a performance contract

D.

The facility with the higher efficiency equipment should have a higher EUI

E.

The facility with the higher EUI requires a supervisory control and data acquisition (SCADA) system

Questions 25

What instrument is NOT used to measure temperature?

Options:
A.

Hot-wire anemometer

B.

Bimetallic thermometer

C.

Thermistor

D.

Thermometer

E.

Optical pyrometer

Questions 26

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

Options:
A.

Robust flash steam rising from condensate receiver tank vent pipes

B.

An increase in make-up water requirements relative to steam demand

C.

Rapid chattering of disk steam traps

D.

No sound from inverted bucket steam traps

E.

All of the above

Questions 27

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

Options:
A.

Equity

B.

Debt

C.

Performance contract

Questions 28

Thermal scans of electrical equipment are useful for:

Options:
A.

Locating areas of high power factor

B.

Reading current carrying capacity of installed conductors

C.

Locating a loose electrical connection

D.

Measuring the load on a refrigerant system

Questions 29

Which problems can be caused by poor power quality?

Options:
A.

Induction motors running backwards

B.

Equipment overheating

C.

Circuit breakers tripping

D.

All of the above

E.

Answers B and C

Questions 30

An office building is illuminated with T8 fluorescent lamps. Which of the following is the best schedule for group relamping (total replacement of all the T8 fluorescent lamps in the building)?

Options:
A.

When you reach 70% of the rated lamp life

B.

Every 4 years

C.

When 25% of the lamps have failed

D.

When 20% of the ballasts have failed

E.

When the building owner changes

Exam Code: CEM
Certification Provider: AEE
Exam Name: Certified Energy Manager (CEM)
Last Update: Jul 12, 2025
Questions: 130

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