Question Bank

1. Lines of constant wind speed drawn on weather charts are called

2. Lower level wind 05010 kt, upper level wind 23005 kt, what is the thermal wind

3. The inertial flow is

4. The wind blows anticlockwise around a low in N-hemisphere

5. In N hemisphere due to rotation of earth winds are deflected to

6. Squall are distinguished from gusts by

7. Katabatic wind occur due to sinking of cold air down the hill slope

8.

The resultant wind that blows under the influence of pressure gradient force, geostrophic force and cyclostrophic force is called

9. The thermal wind is

10. Sea breeze is stronger than land breeze

11. Sudden change in wind speed from 10 kt to 30 kt for 2 -3 minutes

12. In S hemisphere if an observer faces wind, low will be to his ____

13. With the onset of sea breeze there is a _____ in temperature and ____ in RH

14. Coriolis force is strongest at

15. Geostrophic wind is due to the balance between the forces

16. Gradient wind is ____ of the geostrophic wind in an anticyclone

17. Katabatic wind is down slope cold wind due to nocturnal cooling

18. Geostrophic rule breaks down at

19. Anabatic wind occur due to downward movement of air along valley

20. A change from 270° to 250° is

21. The wind blows clockwise around a low in N-hemisphere

22. Gale is

23. Coriolis force acts perpendicular to the _____ of wind direction in N hemisphere

24. The wind sliding down a hill during night is called ______ wind

25. Sea breeze sets in by ______ and dies off at _____

26. If an aircraft in N-hemisphere flies from H to L it will experience

27. Anabatic wind is stronger than katabatic

28. In N hemisphere thermal wind is parallel to ____ with low value to left

29. The wind blows clockwise around a low in S-hemisphere

30. The wind blows anticlockwise around a low in S-hemisphere

31. Upper level wind is 24025 kt, lower level wind is 06015 kt, the thermal wind is?

32. The wind which spirals inward counter-clockwise in the N Hemisphere are associated with

33. Fohn winds are ____ on the Leeward side of a mountain

34. If the S is warmer than the N, level by level, from surface up to higher levels, then the ____ wind will strengthen with height with no change in direction in N hemisphere

35. Friction causes winds to flow cross isobaric by _____ over land and ____ over sea

36. Sudden change in wind speed form 10kt to 30kt an then 15 kt are

37. A change in wind direction from 310° to 020° is

38. On a weather map if isobars are closely packed, the surface winds are likely to be

39. A significant wind shear is generally associated with TS or line squall

40. Rotor clouds have extremely turbulent flying conditions

41. In N-Hemisphere if you experience Port drift, altimeter will read

42. Due to friction, from day to night for an isobaric pattern (in N hemisphere) the surface wind backs and weakens

43. Anabatic wind occurs

44. Local Winds follow Buys Ballots law

45. Cyclostrophic wind gives a good approximation of the 2000' wind in an intense tropical storm