CPE CPE Energy Management & Efficiency

Question 1

Which metric is used to measure the efficiency of a boiler system?

Accepted Answer

Combustion efficiency

Answer

Power factor

Answer

Thermal resistance

Answer

Load factor

Question 2

What is the primary purpose of a variable frequency drive (VFD) in an HVAC system?

Accepted Answer

Reduce motor speed to match load demand and save energy

Answer

Increase voltage to the motor

Answer

Monitor refrigerant pressure

Answer

Control thermostat setpoints

Question 3

An ISO 50001 energy management system certification is best described as:

Accepted Answer

A framework for continually improving energy performance and reducing consumption

Answer

A one-time audit of electrical equipment

Answer

A safety standard for high-voltage systems

Answer

A product certification for energy-efficient motors

Question 4

What does the term 'demand charge' refer to on a commercial electricity bill?

Accepted Answer

A fee based on the peak power draw during a billing period

Answer

The total kilowatt-hours consumed per month

Answer

A surcharge for using renewable energy

Answer

A penalty for low power factor

Question 5

Which type of lighting upgrade typically provides the greatest energy savings in an industrial facility?

Accepted Answer

Replacing HID fixtures with LED fixtures

Answer

Switching from incandescent to CFL bulbs

Answer

Adding occupancy sensors only

Answer

Painting walls a lighter color

Question 6

In steam system energy management, what is 'flash steam'?

Accepted Answer

Low-pressure steam generated when high-pressure condensate is released to a lower pressure

Answer

Steam produced by rapid combustion

Answer

Superheated steam escaping a safety valve

Answer

Steam injected to purge a boiler