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GATE 2025 AR — Architecture – Question 51

Building Services · HVAC design principles · 1 mark · Multiple choice

HVAC dampers are essentially:

  1. Valves regulating airflow to zone requirements
  2. Valves regulating refrigerant flow
  3. Moisture-absorbing desiccants
  4. Metal sheets absorbing heat to cool a zone

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Correct answer: (A) Valves regulating airflow to zone requirements

Explanation

Dampers adjust the effective opening in an air duct or passage to regulate airflow, A. Refrigerant valves act in the refrigeration circuit; desiccants remove moisture; neither describes an airflow damper. Dampers may be manually or automatically controlled.