Oklahoma Service Technician Practice Exam

Question: 1 / 400

What is a potential consequence of an incorrectly sized duct in an HVAC system?

Poor airflow, noise, and uneven heating or cooling

An incorrectly sized duct in an HVAC system can lead to poor airflow, noise, and uneven heating or cooling throughout the space. Ducts that are too small for the system can restrict airflow, resulting in insufficient heating or cooling in certain areas, while ducts that are too large can cause the system to operate inefficiently. This inefficiency can create excessive noise due to turbulent airflow and can lead to comfort issues, with some rooms being too hot or too cold compared to others. Therefore, ensuring that ducts are properly sized is crucial for optimal performance and comfort in an HVAC system.

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Increased energy efficiency and reduced utility costs

Enhanced airflow and consistent temperature control

Reduced need for maintenance and repairs

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