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Home > Exam Questions > ATPL - Airline Transport Pilot license > Meteorology > During a flight at FL 100 from Marseille (QNH 1012 hPa) to Palma de Mallorca (QNH 1015 hPa), an aircraft remains at a constant true altitude. The reason for this is that:

32 - ATPL - During a flight at FL 100 from Marseille (QNH 1012 hPa) to Palma de Mallorca (QNH 1015 hPa), an aircraft remains at a constant true altitude. The reason for this is that:

Question 32 - Meteorology - ATPL - Airline Transport Pilot license

The air at Marseille is colder than that at Palma de Mallorca.

The altimeters are erroneous, and need to be tested.

One of the two QNH values may be incorrect.

The air at Marseille is warmer than that at Palma de Mallorca.

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