Residential HVAC Installation Practice Exam

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Prepare for your Residential HVAC Installation test with our engaging quizzes and in-depth multiple-choice questions. Each question comes with hints and detailed explanations to ensure mastery of the subject matter. Get ready for your exam and boost your confidence!

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Why would one use an extended plenum system?

To prolong the main plenum closer to the farthest supply register
To observe a lesson
To maintain a constant pressure
To connect duct sections

The correct answer is: To prolong the main plenum closer to the farthest supply register

An extended plenum system is used to prolong the main plenum closer to the farthest supply register. This allows for a more balanced distribution of air throughout the building. Option B, observing a lesson, is incorrect as it does not pertain to HVAC systems. Option C, maintaining a constant pressure, is incorrect as this is typically achieved through a pressure-regulating damper in the main duct. Option D, connecting duct sections, is incorrect as this is not the primary purpose of an extended plenum system. Ultimately, the purpose of an extended plenum system is to provide more even air flow and temperature control in a building.