Digital displays ______ airflow.

• A. Relative
• B. Absolute
• C. Instantaneous
• D. Estimated

Answer: (B)

Digital displays show an absolute airflow reading. That means the readout presents the actual flow rate measured by the sensor, in standard units, without referencing any baseline or indicating a change from another value. It’s the true quantity at that moment. A relative reading would compare to something else (like a baseline), and an estimated value would imply approximation—neither of which describes what a typical airflow display provides.