Aviation Meteorology question bank

Altimetry: DGCA Aviation Meteorology questions

5 sample questions from Oxford, with the correct answer shown.

Sample questions

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Question 1

MSA given as 12 000 ft, flying over mountains in temperatures +9°C, QNH set as 1023 (obtained from a nearby airfield). What will the true altitude be when 12 000 ft is reached?

Question 2

When flying at FL180 in the Southern Hemisphere you experience a left to right crosswind. What is happening to your true altitude if indicated altitude is constant?

Question 3

Flying from Marseilles (QNH 1012) to Palma (QNH 1015) at FL100. You do not reset the altimeter, why would true altitude be the same throughout the flight?

Question 4

Which of these would cause your true altitude to decrease with a constant indicated altitude?

Question 5

An aircraft flying in the Alps on a very cold day, QNH 1013 set in the altimeter, flies level with the summit of the mountains. Altitude from aneroid altimeter reads:

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