Question Bank

1. You are cruising at FL 200, OAT is -40°C, sea level pressure is 1033 hPa. Calculate the true altitude?

2. Which statement is true?

3. How is QNH determined from QFE?

4. 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?

5. You are flying from Madrid (QNH 1012) to Paris (QNH 1015) at FL 80. If your true altitude and indicated altitude remain the same then

6. You are flying in the Alps at the same level as the summits on a hot day. What does the altimeter read?

7. Flying from Marseilles to Palma you discover your true altitude is increasing, but oddly the QNH is identical at both places. What could be the reason?

8. You are flying from Marseilles (QNH 1012 hPa) to Palma de Mallorca (QNH 1012 hPa) at FL100. You notice that the effective height above MSL (Radio Altitude) increases constantly. Hence...

9. The QNH is 1030 hPa and at the Transition Level you set the SPS. What happens to your indicated altitude (assume 27 ft per 1 hPa)?

10. Flying at FL 135 above the sea, the Radio Altimeter indicates a true altitude of 13500 ft. The local QNH is 1019 hPa. Hence the crossed air mass is, on average,

11. Up to FL 180 ISA Deviation is ISA +10°C. What is the actual depth of the layer between FL 60 and FL 120?

12. If you are flying on a QNH 1009 on very cold day and you circle the top of a peak in the Alps, your altimeter will read

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

14. 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?

15. You are flying in an atmosphere which is warmer than ISA, what might you expect?

16. What temperature and pressure conditions would be safest to ensure that your flight level clears all the obstacles by the greatest margin?

17. Altimeter set to 1023 at aerodrome. On climb to altitude the SPS is set at transition altitude. What will indication on altimeter do on resetting to QNH?

18. What is the relationship between QFE and QNH at an airport 50ft below MSL?

19. How do you calculate the lowest useable flight level?

20. You fly over the sea at FL 90, your true altitude is 9100 ft and QNH is unknown. What can be said about the atmosphere temperature?

21. QNH is 1003. At FL100 true altitude is 10,000ft. Is it

22. An airfield has an elevation of 540ft with a QNH of 993mb. An aircraft descends and lands at the airfield with 1013mb set. What will its altimeter read on landing?

23. QFE is 1000 hPa with an airfield elevation of 200 m AMSL. What is QNH? (use 8 m per hPa)

24. When is pressure altitude equal to true altitude?

25. Up to FL 180 ISA Deviation is ISA -10°C.What is the actual depth of the layer between FL 60 and FL 120?

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

27. QNH is 1030. Aerodrome is 200m AMSL. What is QFF?

28. You are flying at FL160 with an OAT of -27°C. QNH is 1003 hPa. What is your true altitude?

29. What condition would cause your indicated altitude to be lower than that being actually flown?

30. 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?

31. You fly from east to west at the 500 hPa level in the Northern Hemisphere;

32. If an Aerodrome is 1500ft AMSL on QNH 1038, what will the actual height AGL to get to FL75?

33. Which of the following is true? QNH is

34. You are flying at FL 100 in an air mass that is 15°C colder than ISA. Local QNH is 983 hPa. What would the true altitude be?

35. You have landed on an airport elevation 1240 ft and QNH 1008 hPa. Your altimeter subscale is erroneously ser to 1013 hPa. The indication on the altimeter will be?