Duct Leakage Test Quiz

Why is duct leakage a concern in HVAC systems?

• a) It can increase energy costs

• b) It can improve indoor air quality

• c) It can decrease heating efficiency

• d) Both a and c

What does a high duct leakage rate indicate?

• a) Efficient HVAC system

• b) Poorly insulated ducts

• c) Significant air loss

• d) Both b and c

What is the unit of measurement for duct leakage?

• a) Liters per second (L/s)

• b) Cubic feet per minute (CFM)

• c) Gallons per minute (GPM)

• d) Cubic meters per hour (m³/h)

In duct leakage testing, what does the term "total leakage" refer to?

• a) Leakage to the outside

• b) Leakage inside the house

• c) Combined leakage to the outside and inside

• d) None of the above

What is the significance of the "duct leakage to outdoors" measurement?

• a) It helps to estimate total system efficiency

• b) It indicates the level of air leakage within the building

• c) It measures leakage that contributes to outdoor pollution

• d) It is not a significant measurement

What does "CFM25" represent in duct leakage testing?

• a) Airflow measured at 25°C

• b) Leakage at 25 cubic feet per meter

• c) Leakage at 25 pascals

• d) Leakage at 25 pounds per square inch

How can duct leakage affect indoor air quality?

• a) It can introduce contaminants

• b) It can reduce humidity

• c) It can increase ventilation

• d) It has no effect

What is "duct blaster" in the context of duct leakage testing?

• a) A device to clean ducts

• b) A tool to measure duct leakage

• c) A sealant for ducts

• d) A type of HVAC unit

What is the recommended action if a duct leakage test reveals significant leaks?

• a) Ignore the results

• b) Seal the leaks and retest

• c) Replace the entire HVAC system

• d) Increase the system pressure

Which part of the HVAC system is typically tested for leakage?

• a) Condenser

• b) Compressor

• c) Ductwork

• d) Thermostat