CEM Methods and Strategies 5

Question 1

A CEM is tasked with reducing plug load energy consumption in an office building. Which strategy is MOST effective?

Accepted Answer

Deploying smart power strips and enforcing plug load management policies

Answer

Smart power strips eliminate phantom loads from peripherals, and a formal plug load policy addresses the behavioral and procurement aspects that hardware alone cannot solve.

Question 2

Which strategy BEST supports continuous energy improvement under ISO 50001?

Accepted Answer

Establishing energy performance indicators (EnPIs) and monitoring them regularly

Answer

ISO 50001 requires ongoing tracking of EnPIs to demonstrate continual improvement and catch performance degradation before it becomes costly.

Question 3

When evaluating lighting upgrade strategies, what is the advantage of using a lighting control system in addition to LED fixtures?

Accepted Answer

It captures additional savings through dimming, occupancy, and daylight harvesting controls

Answer

Controls layer additional savings on top of lamp efficiency by ensuring lights operate only when and at the level needed, often doubling the savings from lamp replacement alone.

Question 4

A CEM discovers that a large fan system is operating at full speed continuously despite variable airflow needs. What is the BEST corrective strategy?

Accepted Answer

Install a variable frequency drive (VFD) on the fan motor

Answer

A VFD reduces fan speed to match actual demand; because fan power varies with the cube of speed, small speed reductions yield dramatic energy savings.

Question 5

What is 'energy procurement strategy' and why is it important for large energy users?

Accepted Answer

Actively managing when, how, and from whom energy is purchased to minimize cost and risk

Answer

Large users can negotiate rates, choose contract structures, hedge against price volatility, and access green tariffs — all of which significantly impact energy costs beyond efficiency measures alone.

(CEM) Certified Emergency Manager Practice Test

(CEM) Certified Emergency Manager Practice Test

CEM Methods and Strategies 5