Question Bank

1. Flying 2500 ft below core of jet, with temperature increasing in the Southern Hemisphere, where does the wind come from?

2. When flying from south to north in the Southern Hemisphere, you cross over the Polar Front Jet. What happens to the temperature?

3. What is most different about the Equatorial Easterly jet stream?

4. From the pre-flight briefing you know a jet stream is at 31,000 ft whilst you are at FL270. You experience moderate C.A.T. What would be the best course of action?

5. What type of jet stream blows constantly through the northern hemisphere?

6. With a polar front jet stream (PFJ), the area with the highest probability of turbulence in the Southern Hemisphere is

7. If an Isohypse on a surface pressure chart of 500hPa shows a figure of 522, this indicates

8. FL180, Northern Hemisphere with a wind from the left, what can you say about temperature with a heading of 360°?

9. The core of a jet stream is located

10. When heading South in the Southern Hemisphere you experience Starboard drift

11. Wind at altitude is usually given as .......... in ..........

12. What is the ratio of height to width in a typical jet stream?

13. In central Europe, where are the greatest wind speeds?

14. Contours on a weather chart indicate

15. On a particular day the PFJ runs north to south in the Northern Hemisphere

16. Where are easterly and westerly jets found?

17. How do you recognise high level jet streams and associated CAT?

18. The Arctic Jet core is at

19. When and where does an Easterly jet stream occur?

20. The polar front jet stream in summer compared to winter in the Northern Hemisphere moves

21. Under which of the following circumstances is the most severe CAT likely to be experienced?

22. A jet stream with a wind speed of 350kts is

23. If you fly at right angles to a jet stream in Europe with a decreasing outside air temperature, you will experience