Which factor increases icing risk?

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Study for the Airspace and Weather Minimums Test. Prepare with flashcards and multiple choice questions, each offering hints and explanations. Ace your exam with confidence!

Multiple Choice

Which factor increases icing risk?

Explanation:
Icing risk rises when there is visible moisture in air at or below freezing. In that situation, droplets can be supercooled, staying liquid until they strike the aircraft and then freeze on contact, building up ice on surfaces. If moisture isn’t present, there are no droplets to freeze, so icing can’t form. Dry air at high altitude has very little moisture, and a clear sky means no visible moisture at all, both of which reduce icing potential. Therefore, the presence of visible moisture below freezing level is the condition that increases icing risk.

Icing risk rises when there is visible moisture in air at or below freezing. In that situation, droplets can be supercooled, staying liquid until they strike the aircraft and then freeze on contact, building up ice on surfaces. If moisture isn’t present, there are no droplets to freeze, so icing can’t form. Dry air at high altitude has very little moisture, and a clear sky means no visible moisture at all, both of which reduce icing potential. Therefore, the presence of visible moisture below freezing level is the condition that increases icing risk.

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