What are the three primary types of icing encountered in aviation?

The three primary types of icing encountered in aviation include structural icing, pitot-static icing, and carburetor icing, making the first choice the correct answer.

Structural icing forms on the external surfaces of an aircraft when flying through clouds or precipitation with super-cooled water droplets. This type of icing can significantly affect the aerodynamics of the aircraft, increasing weight and altering airflow over the wings and control surfaces, potentially leading to loss of control if not properly managed.

Pitot-static icing occurs within the pitot tube and static ports, which are critical components of an aircraft's airspeed and altitude measurement systems. When ice accumulates in these areas, it can lead to erroneous readings, which could fatally hinder a pilot's situational awareness and judgement.

Carburetor icing typically affects piston-engine aircraft and occurs when moisture in the air condenses and freezes within the carburetor. This can impede the proper flow of fuel and air into the engine, leading to performance issues and, in some cases, engine failure.

The other options provided identify types of icing or precipitation that are not categorized as the main types of icing encountered in aviation, making them incorrect in this context. Understanding these icing types is crucial for pilots in order to recognize and mitigate