CPM Energy Management & Utilities 3

Question 1

According to the U.S. Department of Energy, which end-use category typically accounts for the largest share of manufacturing energy consumption?

Accepted Answer

Process heating

Answer

Process heating (furnaces, kilns, ovens, steam generation) accounts for approximately 50% of total U.S. manufacturing energy use, making it the largest single end-use category.

Question 2

A 'base load' analysis in plant energy management is primarily used to:

Accepted Answer

Identify energy consumed regardless of production activity, revealing standby waste

Answer

Base load analysis identifies energy consumed when the plant is idle or in standby — revealing waste from equipment left running unnecessarily, lighting, HVAC, and phantom loads.

Question 3

Waste heat recovery projects are most economically viable when:

Accepted Answer

Waste heat streams have sufficient temperature and volume to justify capital investment

Answer

Heat recovery economics depend on both heat quality (temperature level) and quantity (flow rate); streams must be large and hot enough to justify the capital cost of heat exchangers.

Question 4

A utility 'green tariff' allows large industrial customers to:

Accepted Answer

Purchase utility-owned renewable energy at a negotiated fixed rate

Answer

Green tariffs let large industrial customers directly purchase renewable energy owned by the utility at agreed rates, supporting sustainability goals without the capital cost of on-site generation.

Question 5

Building Automation Systems (BAS) in a plant primarily help managers by:

Accepted Answer

Automatically controlling HVAC, lighting, and utilities to optimize energy use

Answer

BAS integrate and automate control of HVAC, lighting, and other building systems, enabling optimal scheduling, setback during non-production hours, and automated fault detection for energy savings.

(CPM) Certified Plant Manager Practice Test

(CPM) Certified Plant Manager Practice Test

CPM Energy Management & Utilities 3