What does the Anti-Icing system do?

• A. Provides anti-ice air flow to the engine front frame, inlet center body and inlet device; Prevents the build-up of ice on air inlet hardware.
• B. Heats the cockpit windows to prevent fog.
• C. Pumps de-icing fluid on wings.
• D. Inflates ice-detection balloons.

Answer: (A)

Ice can form on the engine intake surfaces in flight, which would block airflow and endanger engine performance. The anti-icing system is designed to prevent that by delivering heated air to the engine’s front frame, inlet center body, and inlet device. This warming keeps the inlet surfaces free of ice, ensuring a smooth, continuous supply of air to the engine.

In practice, this warm air is bleed air routed through anti-ice ducts and valves, regulated by sensors or ice detectors to maintain the right temperature.

The other options don’t fit this role: heating cockpit windows is about defogging, not engine inlets; wing de-icing uses fluids or separate heating systems for the wings, not the engine inlet; inflating ice-detection balloons isn’t how ice detection works.