NCIDQ IDFX Practice Exam

What is a significant characteristic of the terminal reheat system?

1. Uses ducts for fresh air and water for heating or cooling

2. Distributes only hot air via separate ducts

3. Heats spaces using radiant heating panels

4. Operates with a single duct system

The correct answer is: Uses ducts for fresh air and water for heating or cooling

The terminal reheat system is characterized by its method of managing temperature in individual zones within a building. Each conditioned space can have its own thermostat, allowing for precise temperature control. The system typically utilizes ducts for delivering fresh air, while heating or cooling is achieved through the reheat process, which involves using hot water or steam to warm the air as it passes through the terminal units. In this setup, fresh air is brought into the system and delivered through the ductwork, ensuring that it is adequately heated or cooled based on the demands of the space. This method promotes energy efficiency and comfort, as each terminal unit can adjust the temperature independently according to the needs of the user in that specific area. The other options, while they represent different heating and cooling strategies, do not accurately describe how a terminal reheat system operates. For instance, distributing only hot air via separate ducts suggests a system that does not incorporate fresh air effectively, which goes against the principle of a terminal reheat system that aims for a balanced approach to temperature regulation. Likewise, using radiant heating panels and operating with a single duct system reflect different mechanical systems that do not employ the specific reheat method essential to terminal reheat systems.