EASA NAV(A)advanced
An aircraft is flying at an indicated altitude of 5,000 ft with the local QNH correctly set on the altimeter. The outside air temperature is 15°C warmer than standard atmosphere (ISA +15°C). Using the standard rule of thumb (4 ft per 1,000 ft per °C of temperature deviation), what is the aircraft's approximate true altitude?
Answer
5,300 ft
Explanation
The source question keys 7000 ft. It distinguishes pressure altitude from QNH altitude and asks for true altitude under the stated temperature. Exact conversion depends on the pressure setting and temperature correction procedure, so the supplied figures should be interpreted using the examination method. **Key takeaway:** Pressure altitude, QNH altitude, and true altitude are distinct quantities. **Glossary:** **Pressure altitude**: Altitude referenced to standard pressure; **QNH altitude**: Altimeter indication with local QNH set.
Related Questions
- What distance corresponds to one degree of latitude along any meridian?(basic)
- What is the distance between 150°E and 151°E along the equator?(basic)
- What is the difference in latitude between A (12°53′30″N) and B (07°34′30″S)?(basic)
- At approximately which latitudes are the Earth's two polar circles—the Arctic Circle and the Antarctic Circle—located?(basic)
- At latitudes other than the equator, one degree of longitude spans less distance than one degree of longitude at the equator.(basic)
Want to practice more questions like this?
Join myBenkio free and practice past questions for your Nigerian university courses with AI explanations for every answer.
Start Practicing Free