Question Bank

1. For mountain waves to form the wind speed for large mountains should be atleast

2. When approaching an area where mountain waves have been reported, a pilot should expect

3. CAT is the bumpiness experienced by aircraft at high altitudes. Over North India its maximum frequency is during

4. Clear air turbulences is often encountered

5. In Mountain waves the Rotor clouds form in

6. The worst kind of turbulence is encountered in the vicinity of rotor clouds

7. For mountain waves to form there should be flow of air across the ridge, generally within _____ of the perpendicular to the ridge

8. For mountain waves to form the wind speed for small mountains should be atleast

9. For mountain waves to form there should be _____ air beow the ridge and less stable air above

10. Most CAT occurs on the _____ of a jet stream and in the vicinity of upper level frontal zones where temperature contrasts are strong