Thermal & Airflow Diagnostics Flashcards

What is the primary tool used to detect thermal leaks in a building?

Answer: Infrared thermal camera

Infrared thermal cameras are used to visualize temperature variations and identify heat loss areas in buildings.

Which factor most influences air infiltration in a building?

Answer: Building envelope tightness

The building envelope’s tightness determines how much uncontrolled air enters and exits the structure, impacting energy efficiency.

What is the main purpose of a duct blaster test?

Answer: To assess duct air leakage

A duct blaster test measures the amount of air leakage in HVAC ducts, helping to improve system efficiency and performance.

Which condition indicates poor airflow in an HVAC system?

Answer: Uneven temperature distribution

Uneven temperature distribution within a building suggests inefficient airflow, often due to leaks or obstructions in the system.

How can airflow in a building be improved without increasing energy consumption?

Answer: Using balanced ventilation systems

Balanced ventilation systems enhance airflow while maintaining energy efficiency by controlling incoming and outgoing air.

What is a common method for detecting air leaks in a building?

Answer: Using a smoke pencil

A smoke pencil releases visible smoke, which helps identify air leaks by showing airflow movement around gaps and openings.