Altimetry

#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?

• A11,940
• B11,148
• C12,210
• D12,864

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

• ARemains the same
• BIncreasing
• CDecreasing
• DImpossible to tell

#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?

• ANot possible to tell
• BAir at Palma is warmer than air at Marseilles
• CAir at Marseilles is warmer than air at Palma
• DBlocked static vent