Kentucky Boiler Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

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What does "fouling" in a boiler refer to?

Regular maintenance practices

Loss of boiler pressure

Accumulation of deposits reducing efficiency

The term "fouling" in a boiler context refers specifically to the accumulation of unwanted materials or deposits on the heat transfer surfaces of the boiler, such as the tubes or plates. This buildup can consist of minerals, ash, or other byproducts from the combustion process or water treatment. As these deposits accumulate, they create an insulating layer that hampers the efficient transfer of heat. This can lead to reduced thermal efficiency, increased fuel consumption, and elevated operating temperatures that can negatively affect the boiler's performance and longevity.

Understanding this phenomenon is crucial for maintaining optimal boiler efficiency and operational safety, as fouling can lead to overheating and potential failure if not addressed through regular cleaning and maintenance practices.

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Excessive steam production

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