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Certified Energy Manager (CEM)

Last Update 17 hours ago Total Questions : 144

The Certified Energy Manager (CEM) content is now fully updated, with all current exam questions added 17 hours ago. Deciding to include CEM practice exam questions in your study plan goes far beyond basic test preparation.

You'll find that our CEM exam questions frequently feature detailed scenarios and practical problem-solving exercises that directly mirror industry challenges. Engaging with these CEM sample sets allows you to effectively manage your time and pace yourself, giving you the ability to finish any Certified Energy Manager (CEM) practice test comfortably within the allotted time.

Question # 11

A new energy-efficient boiler costs $60,890 to buy and install. The new energy-efficient boiler will save $15,400 per year and last for 20 years. What is the internal rate of return (IRR) of the project?

A.

10%

B.

15%

C.

20%

D.

25%

E.

30%

Question # 12

Thermal scans of electrical equipment are useful for:

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

Question # 13

Which of the following is NOT included in commissioning documentation?

A.

Original facility and equipment design intent

B.

As-built drawings

C.

Financing payment structure reports

D.

Equipment control sequence documentation

E.

Equipment operations and maintenance manuals

Question # 14

A facility uses 250,000 kWh in a 31-day billing period. The peak demand in the billing period is 1,200 kW. What is the facility partial load factor?

A.

28%

B.

33%

C.

45%

D.

66%

E.

77%

Question # 15

The temperature in an unconditioned mechanical room is found to typically be around 23°C warmer than ambient air. If the air intake of an air compressor located in the mechanical room is routed through a nearby wall so that ambient air is fed directly to the air compressor ' s intake, what impact can be expected on the air compressor ' s energy requirement?

A.

Increase energy use by 7.6%

B.

Increase energy use by 3.8%

C.

No measureable change in energy use

D.

Decrease energy use by 3.8%

E.

Decrease energy use by 7.6%

Question # 16

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 condenser coil, before the thermal expansion valve

B.

After the expansion valve, before the evaporator coil

C.

After the evaporator coil, before the compressor

D.

After the compressor, before the condenser coil

Question # 17

What does a manometer measure?

A.

Pressure

B.

Volume

C.

Distance

D.

Voltage

Question # 18

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

A.

Equity

B.

Debt

C.

Performance contract

Question # 19

Which of the following is a closed-loop controller?

A.

Time clock schedule controller

B.

Thermostat for an air conditioning unit

C.

Manual dimmer for a light switch

D.

Accelerator pedal in an automobile

Question # 20

Which electric rate tariff would best cost justify a thermal energy storage (TES) system?

A.

High electricity rate and low peak-demand rate

B.

Low electricity rate and low peak-demand rate

C.

Great differential between off-peak and on-peak time-of-use electricity rates

D.

Great differential between high season and low season electricity rates

E.

Great differential between high season and low season demand rates

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