EASA NAV(A)advanced
66. Pressure altitude is 7000 ft, OAT +11°C, QNH altitude 6500 ft. What is true altitude?
Answer
6750 ft
Explanation
The temperature correction under the stated conditions gives a true altitude of **6750 ft**. Pressure altitude and QNH altitude are different reference quantities; apply the relevant pressure and temperature corrections. **Key takeaway:** True altitude depends on pressure and temperature. **Glossary:** Pressure altitude: altitude referenced to standard pressure.
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