Kentucky Boiler Practice Exam 2025 – All-in-One Guide to Master Your Certification!

Question: 1 / 400

What is the role of the draft fan in a boiler system?

To circulate water

To ensure proper airflow and combustion

The draft fan plays a critical role in ensuring proper airflow and combustion within a boiler system. Its primary function is to create a controlled flow of air necessary for the combustion process. The draft fan helps to maintain the right balance between the amount of fuel being burned and the oxygen available for combustion, which is essential for achieving efficient operation and optimal heat generation.

By drawing in air and expelling flue gases, the draft fan not only facilitates combustion but also helps to maintain the necessary pressure differential within the boiler. This ensures that the combustion gases are effectively removed from the combustion chamber, preventing overheating and making sure that the boiler operates within safe parameters. As a result, the draft fan is integral to the efficient and safe operation of a boiler system.

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To cool down the boiler

To eliminate excess steam

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