What is the standard temperature lapse rate with altitude?

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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

What is the standard temperature lapse rate with altitude?

Explanation:
In the standard atmosphere, air temperature drops as you climb. The defined rate is about 2 degrees Celsius cooler for every 1,000 feet you gain in altitude, and the minus sign shows that temperature decreases with height. So the standard temperature lapse rate with altitude is -2°C per 1,000 feet. As you climb 10,000 feet, for example, the temperature would be about 20°C cooler than at sea level (roughly 15°C at sea level minus 20 gives about -5°C), illustrating how this gradient works. The other options would imply warming with height, a smaller cooling rate, or no change at all, which don’t match the standard atmosphere behavior in the troposphere.

In the standard atmosphere, air temperature drops as you climb. The defined rate is about 2 degrees Celsius cooler for every 1,000 feet you gain in altitude, and the minus sign shows that temperature decreases with height. So the standard temperature lapse rate with altitude is -2°C per 1,000 feet.

As you climb 10,000 feet, for example, the temperature would be about 20°C cooler than at sea level (roughly 15°C at sea level minus 20 gives about -5°C), illustrating how this gradient works. The other options would imply warming with height, a smaller cooling rate, or no change at all, which don’t match the standard atmosphere behavior in the troposphere.

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