All sections of the engine that require anti-ice heat must have which switch ON?

All sections of the engine that require anti-ice heat must have which switch ON?

• A. Anti-ice switch On
• B. Engine A/I switch On
• C. Pitot Static Heat switch On
• D. Windshield Heat switch On

Answer: (A)

Anti-ice heat is supplied by a dedicated anti-ice circuit. When any engine sections that require anti-ice heat are involved, you must have the anti-ice switch ON to power that circuit, ensuring heat is delivered to all required areas. If the switch is off, ice can build up on the engine inlet and related components, risking airflow issues and engine performance. The other switches heat unrelated items (pitot/static probes, windshields) or are simply different labels for non-engine anti-ice control, so they do not energize the engine anti-ice system.

Anti-ice heat is supplied by a dedicated anti-ice circuit. When any engine sections that require anti-ice heat are involved, you must have the anti-ice switch ON to power that circuit, ensuring heat is delivered to all required areas. If the switch is off, ice can build up on the engine inlet and related components, risking airflow issues and engine performance. The other switches heat unrelated items (pitot/static probes, windshields) or are simply different labels for non-engine anti-ice control, so they do not energize the engine anti-ice system.