Is it possible for a vent damper to fail in the closed position?

A vent damper can indeed fail in the closed position, which is why the correct answer is true. A vent damper's primary function is to regulate airflow within a heating, ventilation, and air conditioning system, and a damper that is stuck or fails to open can restrict the flow of air completely.

In operational systems, this could lead to issues such as overheating, inadequate ventilation, and the potential for increased pressure within the ductwork, which may damage components or reduce system efficiency. It is critical for HVAC systems to have properly functioning dampers to maintain optimal airflow and prevent such issues. Therefore, acknowledging that a vent damper can fail closed is vital for understanding HVAC system maintenance and troubleshooting.