PPL Meteorology Practice Questions - Sri Lanka CAA PPL(A) Meteorology Examination Exam

What is the standard temperature lapse rate within the troposphere under the ICAO Standard Atmosphere (ISA) model?

1°C per 1,000 feet increase in altitude 1.98°C (approx. 2°C) per 1,000 feet increase in altitude 3°C per 1,000 feet increase in altitude 0.5°C per 1,000 feet increase in altitude

Correct Answer:

1.98°C (approx. 2°C) per 1,000 feet increase in altitude

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