CPM Energy Management & Utilities

Question 1

What is the primary purpose of implementing ISO 50001 in a manufacturing facility?

Accepted Answer

Establish a systematic framework for improving energy performance

Answer

ISO 50001 provides a systematic framework for organizations to establish energy policies, set targets, and continually improve energy performance.

Question 2

Which metric is most commonly used to measure energy efficiency in a manufacturing plant?

Accepted Answer

Energy intensity (energy consumed per unit of output)

Answer

Energy intensity normalizes energy consumption against production output, making it a meaningful efficiency metric across varying production volumes.

Question 3

What is the primary purpose of power factor correction in industrial facilities?

Accepted Answer

Reduce reactive power and lower utility demand charges

Answer

Power factor correction reduces reactive power (kVAR), which lowers apparent power demand and associated utility charges while improving system efficiency.

Question 4

Variable frequency drives (VFDs) deliver the greatest energy savings in which type of application?

Accepted Answer

Centrifugal pumps and fans operating at partial load

Answer

Centrifugal pumps and fans follow the affinity laws where power consumption drops with the cube of speed reduction, making VFDs extremely effective at partial loads.

Question 5

In electrical utility billing, a 'demand charge' is based on:

Accepted Answer

The highest 15- or 30-minute average power draw recorded in the period

Answer

Demand charges are based on peak power demand (highest average over a 15- or 30-minute interval), reflecting the utility's cost to maintain capacity for peak usage.

(CPM) Certified Plant Manager Practice Test

(CPM) Certified Plant Manager Practice Test

CPM Energy Management & Utilities