2026 CFORCE Options Class Marker Practice Test

What is the principal purpose of an economizer in a steam-generating unit?

To heat combustion air To separate moisture from steam To preheat feedwater using heat from flue gas To superheat saturated steam

To preheat feedwater using heat from flue gas

An economizer recovers sensible heat from leaving flue gas and transfers it to feedwater before the water enters the evaporating section.

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