IMC ceiling and visibility are lower than which combination to be considered Case III?

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Multiple Choice

IMC ceiling and visibility are lower than which combination to be considered Case III?

IMC weather is categorized into Case I, Case II, and Case III to indicate how restrictive the conditions are and which minimums apply. Case III represents the most restrictive of these cases, used when both ceiling and visibility fall to the lower end of the standard IMC thresholds. The official boundary for Case III is a ceiling of 1,000 feet and visibility of 5 miles. If the actual conditions are lower than these values in both dimensions, you’re in Case III. The other options don’t define the Case III threshold because they do not set the required boundary of 1,000 feet and 5 miles; they either exceed one of the thresholds or describe conditions that are not the standard Case III boundary.

IMC weather is categorized into Case I, Case II, and Case III to indicate how restrictive the conditions are and which minimums apply. Case III represents the most restrictive of these cases, used when both ceiling and visibility fall to the lower end of the standard IMC thresholds. The official boundary for Case III is a ceiling of 1,000 feet and visibility of 5 miles. If the actual conditions are lower than these values in both dimensions, you’re in Case III. The other options don’t define the Case III threshold because they do not set the required boundary of 1,000 feet and 5 miles; they either exceed one of the thresholds or describe conditions that are not the standard Case III boundary.

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