Gas Heat ESCO Practice Exam

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Building pressure diagnostic testing compares:

  1. indoor humidity to outdoor humidity

  2. temperature inside different rooms

  3. pressure in the whole building to the outside air

  4. airflow in different ducts

The correct answer is: pressure in the whole building to the outside air

Building pressure diagnostic testing compares the pressure inside the building to the outside air in order to identify any leaks in the building's envelope. It does not compare indoor humidity or temperature in different rooms. While airflow in different ducts may be a potential factor in building pressure, it is not the main focus of this type of diagnostic testing.

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