CEM Exam Questions Tutorials

Certified Energy Manager (CEM) Questions and Answers

Question 17

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]

Options:

4.0 GJ/h

5.0 GJ/h

7.0 GJ/h

8.0 GJ/h

Question 18

Which is the best application for variable-speed drives?

Options:

Reciprocating air compressor

Waste-water sewer lift pump

Centrifugal fan motor in a variable-air volume air-conditioning system

Centrifugal fan motor in a multi-zone air conditioning system

Question 19

What is the uniform series present worth factor (P/A, i%, n) for an annual interest rate of 15% and a lifetime of 20 years?

Options:

0.160

0.214

4.676

6.259

Question 20

What is the definition of lamp life for a fluorescent lamp?

Options:

The time at which lamps begin to fail

The time at which 50% of a large sample of lamps have failed

The time at which 70% of a large sample of lamps have failed

The time at which lumen output has reduced by 50%

The time at which lumen output has reduced to 70% of the initial light output

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Certified Energy Manager (CEM) Questions and Answers

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CompTIA

Fortinet

Microsoft

Salesforce