Which altitude has a standard temperature of -5 degrees Celsius?

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Test your knowledge of pitot-static systems for aviation exams. Study with multiple-choice questions and detailed explanations. Prepare effectively for success on your exam!

Multiple Choice

Which altitude has a standard temperature of -5 degrees Celsius?

Explanation:
In the standard atmosphere, temperature decreases with altitude at a constant lapse rate of 2°C per 1,000 ft, starting from 15°C at sea level. To reach -5°C, you need a drop of 20°C from 15°C. At 2°C per 1,000 ft, that requires 10,000 ft of altitude. So the standard temperature at 10,000 ft is -5°C. For quick context, at 6,000 ft the temperature would be 3°C, at 11,000 ft it would be -7°C, and at 2,000 ft it would be 11°C.

In the standard atmosphere, temperature decreases with altitude at a constant lapse rate of 2°C per 1,000 ft, starting from 15°C at sea level. To reach -5°C, you need a drop of 20°C from 15°C. At 2°C per 1,000 ft, that requires 10,000 ft of altitude. So the standard temperature at 10,000 ft is -5°C. For quick context, at 6,000 ft the temperature would be 3°C, at 11,000 ft it would be -7°C, and at 2,000 ft it would be 11°C.

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