Envoy Interview Practice Exam – Practice Test & Study Guide

The three types of icing that can occur in aviation are rime, mixed, and clear icing. Rime icing typically occurs in cold, moist environments and forms when supercooled water droplets freeze upon impact with an aircraft surface, creating a rough and white appearance. Mixed icing combines characteristics of both rime and clear icing, generally occurring in conditions where both small and large supercooled droplets are present. Clear icing, often considered the most hazardous, consists of larger supercooled droplets that freeze more slowly, resulting in a smooth, transparent coating.

This classification is important for pilots to understand, as each type of icing presents different hazards and requires different strategies for avoidance and management during flight. Understanding these distinctions helps pilots make informed decisions to ensure safety in icy conditions.