EMP Assessment & Monitoring Methods 2

Question 1

Which metering configuration allows a facility to separately track energy consumption for individual production lines or departments?

Accepted Answer

Sub-metering

Answer

Sub-metering installs meters downstream of the main utility meter to isolate and track energy use by specific end-uses, departments, or equipment.

Question 2

In an energy audit, what does the term 'baseline normalization' primarily address?

Accepted Answer

Adjusting energy data to account for variable conditions like weather or production

Answer

Baseline normalization adjusts historical energy data for independent variables (weather, occupancy, production volume) so that true energy performance changes can be isolated.

Question 3

A power quality analyzer detects a power factor of 0.72 at a manufacturing plant. What is the most likely corrective measure an energy manager would recommend?

Accepted Answer

Add power factor correction capacitors

Answer

Power factor correction capacitors supply reactive power locally, reducing the reactive component of current and improving power factor toward unity.

Question 4

What is the primary purpose of a continuous commissioning (CC) program in a building?

Accepted Answer

To optimize and maintain building system performance through ongoing monitoring and adjustments

Answer

Continuous commissioning uses ongoing data collection and analysis to identify and correct building system inefficiencies, maintaining peak performance over time.

Question 5

Which statistical method is most appropriate for developing an energy prediction model when multiple independent variables (production, weather, shifts) affect consumption?

Accepted Answer

Multiple linear regression

Answer

Multiple linear regression models the relationship between energy consumption and several independent variables simultaneously, providing a more accurate predictive baseline.

(EMP) Energy Management Professional Practice Test

(EMP) Energy Management Professional Practice Test

EMP Assessment & Monitoring Methods 2