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HVAC Level One Chapter 1 Questions and Answers | Latest Version | 2025/2026 | Correct & Verified

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HVAC Level One Chapter 1 Questions and Answers | Latest Version | 2025/2026 | Correct & Verified What is a split system in HVAC? An air conditioning system with separate indoor and outdoor units. What is a packaged system? An HVAC system that combines all components in a single outdoor unit. What is the function of an expansion valve? To control the flow of refrigerant into the evaporator. Why is proper refrigerant charge important? To ensure system efficiency and prevent damage. What is the purpose of a condensate drain? To remove moisture collected from the air. What is a heat pump? A system that provides both heating and cooling by reversing the refrigeration cycle. Why is ventilation necessary in buildings? 2 To provide fresh air and remove contaminants. What is the role of a programmable thermostat? To schedule temperature changes and save energy. What is latent heat? Energy absorbed or released during a change in moisture content. What is sensible heat? Energy absorbed or released causing a change in temperature. Why is proper duct sealing important? To prevent air leaks and improve system efficiency. What is a humidifier in HVAC? A device that adds moisture to indoor air for comfort. What is a dehumidifier? A device that removes excess moisture from indoor air. What is static pressure in an HVAC system? The resistance to airflow in ductwork. 3 Why is refrigerant line insulation necessary? To prevent condensation and energy loss. What is an economizer in HVAC? A device that uses outdoor air for cooling when conditions are favorable. What is the primary purpose of an HVAC system? To provide thermal comfort and acceptable indoor air quality. What is the function of a thermostat in HVAC? To regulate indoor temperature by controlling heating and cooling equipment. Why is airflow important in an HVAC system? It ensures proper heat transfer and comfort throughout the space. What is a duct in an HVAC system? A passage that delivers heated or cooled air to indoor spaces. What is the purpose of a heat exchanger? To transfer heat from combustion gases to air without mixing the two.

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Uploaded on: December 26, 2025
Number of pages: 15
Written in: 2025/2026
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HVAC Level One Chapter 1 Questions
and Answers | Latest Version |
2025/2026 | Correct & Verified
What is a split system in HVAC?

✔✔An air conditioning system with separate indoor and outdoor units.

What is a packaged system?

✔✔An HVAC system that combines all components in a single outdoor unit.

What is the function of an expansion valve?

✔✔To control the flow of refrigerant into the evaporator.

Why is proper refrigerant charge important?

✔✔To ensure system efficiency and prevent damage.

What is the purpose of a condensate drain?

✔✔To remove moisture collected from the air.

What is a heat pump?

✔✔A system that provides both heating and cooling by reversing the refrigeration cycle.

Why is ventilation necessary in buildings?
1

, ✔✔To provide fresh air and remove contaminants.

What is the role of a programmable thermostat?

✔✔To schedule temperature changes and save energy.

What is latent heat?

✔✔Energy absorbed or released during a change in moisture content.

What is sensible heat?

✔✔Energy absorbed or released causing a change in temperature.

Why is proper duct sealing important?

✔✔To prevent air leaks and improve system efficiency.

What is a humidifier in HVAC?

✔✔A device that adds moisture to indoor air for comfort.

What is a dehumidifier?

✔✔A device that removes excess moisture from indoor air.

What is static pressure in an HVAC system?

✔✔The resistance to airflow in ductwork.

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