Which altitude has a standard temperature of 11 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 11 degrees Celsius?

Explanation:
In standard atmosphere, temperature decreases with altitude at a fixed lapse rate of 2°C per 1,000 feet, starting from a sea-level temperature of 15°C. So at 2,000 feet, the drop is 2 × 2 = 4°C, giving 15°C − 4°C = 11°C. The other options would yield different temperatures: 6,000 feet would be 15 − 12 = 3°C; 8,500 feet would be 15 − 17 = −2°C; 10,000 feet would be 15 − 20 = −5°C. Therefore, the altitude with a standard temperature of 11°C is 2,000 feet.

In standard atmosphere, temperature decreases with altitude at a fixed lapse rate of 2°C per 1,000 feet, starting from a sea-level temperature of 15°C. So at 2,000 feet, the drop is 2 × 2 = 4°C, giving 15°C − 4°C = 11°C. The other options would yield different temperatures: 6,000 feet would be 15 − 12 = 3°C; 8,500 feet would be 15 − 17 = −2°C; 10,000 feet would be 15 − 20 = −5°C. Therefore, the altitude with a standard temperature of 11°C is 2,000 feet.

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