Instrument Rating Checkride Practice Test

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Prepare for the Instrument Rating Checkride with our tailored quizzes. Enhance your aviation knowledge through multiple choice and scenario-based questions, each offering insights and explanations. Ace the checkride exam with confidence!

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What is rime ice characterized by?

A glossy, smooth appearance
Small rain drops freezing on impact with the airfoil
Large supercooled water droplets
Addition of visible structural weight

The correct answer is: Small rain drops freezing on impact with the airfoil

Rime ice is characterized primarily by the way it forms on an aircraft. It occurs when small supercooled water droplets freeze on contact with the airframe or airfoil, creating a rough, opaque coating of ice. This is a crucial distinction in understanding rime ice, as it signifies that the ice forms due to rapid freezing of these supercooled droplets rather than larger drops or differently freezing conditions. In this context, rime ice typically creates a frosty appearance, contrasting with other types of ice like clear ice, which is smooth and glossy. Rime ice generally does not add significant structural weight compared to other forms of ice but can still adversely affect aircraft performance due to its shape and rough texture. Therefore, this specific nature of rime ice formation is key to identifying its characteristics effectively.