EMP Assessment & Monitoring Methods 3

Question 1

An energy manager wants to identify thermal losses in a building envelope. Which assessment tool provides the most direct visualization of heat loss patterns?

Accepted Answer

Infrared thermography

Answer

Infrared thermography captures thermal images that visually reveal areas of abnormal heat loss or gain through walls, roofs, windows, and other building envelope components.

Question 2

Which metric is used in ASHRAE Level 2 energy audits to express the energy use of a building relative to its size?

Accepted Answer

Energy Use Intensity (EUI)

Answer

Energy Use Intensity (EUI) expresses annual energy consumption per square foot of building area, enabling benchmarking against similar buildings and tracking performance over time.

Question 3

In industrial energy monitoring, what does 'specific energy consumption' (SEC) measure?

Accepted Answer

Energy consumed per unit of production output

Answer

Specific energy consumption expresses how much energy is required to produce one unit of output (e.g., kWh per ton of product), enabling efficiency tracking independent of production volume.

Question 4

A facility's energy monitoring system flags an anomaly showing a 40% spike in compressed air system energy at 2 AM when production is halted. What does this most likely indicate?

Accepted Answer

Compressed air leaks consuming energy during non-production hours

Answer

Significant compressed air energy consumption during non-production hours typically indicates air leaks, as compressors must run continuously to maintain pressure in a leaking system.

Question 5

When performing an M&V (Measurement and Verification) assessment, what is the primary function of the 'Option A' approach under IPMVP?

Accepted Answer

Stipulating some parameters while measuring key performance indicators

Answer

IPMVP Option A (Retrofit Isolation – Key Parameter Measurement) measures key performance parameters while stipulating other less significant factors, balancing accuracy with cost-effectiveness.

(EMP) Energy Management Professional Practice Test

(EMP) Energy Management Professional Practice Test

EMP Assessment & Monitoring Methods 3