Which is a practical way to assess airflow at the exterior vent?

Which is a practical way to assess airflow at the exterior vent?

• A. Observe a strong airstream.
• B. Use a digital thermometer to measure temperature.
• C. Listen for motor noise only.
• D. Check indoor humidity.

Answer: (A)

Assessing airflow at the exterior vent is about confirming that air is actually leaving the system. A practical check is to observe a steady outward airstream from the vent opening (or feel a noticeable rush of air at the opening). That direct indication shows the exhaust path is clear and functioning. Measuring temperature at the vent can be misleading, since hot air can exist without verifying movement. Listening for motor noise only tells you the dryer is operating, not that air is being vented. Checking indoor humidity doesn’t reliably reflect exterior airflow and can be affected by other indoor moisture sources.

Assessing airflow at the exterior vent is about confirming that air is actually leaving the system. A practical check is to observe a steady outward airstream from the vent opening (or feel a noticeable rush of air at the opening). That direct indication shows the exhaust path is clear and functioning.

Measuring temperature at the vent can be misleading, since hot air can exist without verifying movement. Listening for motor noise only tells you the dryer is operating, not that air is being vented. Checking indoor humidity doesn’t reliably reflect exterior airflow and can be affected by other indoor moisture sources.